v3.26.1
Shareholder Report, Holdings (Details)
Apr. 30, 2026
YieldMax(R) AAPL Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 98.00%
YieldMax(R) AAPL Option Income Strategy ETF | Apple, Inc., Expiration: 06/18/2026; Exercise Price: $275.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (4.40%)
YieldMax(R) AAPL Option Income Strategy ETF | Apple, Inc., Expiration: 06/18/2026; Exercise Price: $275.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
YieldMax(R) AAPL Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
YieldMax(R) AAPL Option Income Strategy ETF | Apple, Inc., Expiration: 05/01/2026; Exercise Price: $275.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.90%)
YieldMax(R) AAPL Option Income Strategy ETF | Apple, Inc., Expiration: 05/01/2026; Exercise Price: $282.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
YieldMax(R) AAPL Option Income Strategy ETF | Apple, Inc., Expiration: 05/01/2026; Exercise Price: $277.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.40%)
YieldMax(R) AAPL Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.30%)
YieldMax(R) AAPL Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (4.40%)
YieldMax(R) AAPL Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
YieldMax(R) AAPL Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 95.90%
YieldMax(R) ABNB Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 84.30%
YieldMax(R) ABNB Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
YieldMax(R) ABNB Option Income Strategy ETF | Airbnb, Inc., Expiration: 06/18/2026; Exercise Price: $130.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.90%
YieldMax(R) ABNB Option Income Strategy ETF | Airbnb, Inc., Expiration: 05/01/2026; Exercise Price: $145.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.20%)
YieldMax(R) ABNB Option Income Strategy ETF | Airbnb, Inc., Expiration: 05/01/2026; Exercise Price: $144.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) ABNB Option Income Strategy ETF | Airbnb, Inc., Expiration: 05/01/2026; Exercise Price: $149.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
YieldMax(R) ABNB Option Income Strategy ETF | Airbnb, Inc., Expiration: 05/01/2026; Exercise Price: $148.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
YieldMax(R) ABNB Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.30%)
YieldMax(R) ABNB Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.00%)
YieldMax(R) ABNB Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
YieldMax(R) ABNB Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 89.00%
YieldMax(R) AI Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 94.10%
YieldMax(R) AI Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
YieldMax(R) AI Option Income Strategy ETF | C3.ai, Inc. - Class A, Expiration: 05/15/2026; Exercise Price: $9.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (2.00%)
YieldMax(R) AI Option Income Strategy ETF | C3.ai, Inc. - Class A, Expiration: 05/01/2026; Exercise Price: $9.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.80%)
YieldMax(R) AI Option Income Strategy ETF | C3.ai, Inc. - Class A, Expiration: 05/01/2026; Exercise Price: $9.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
YieldMax(R) AI Option Income Strategy ETF | C3.ai, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $9.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) AI Option Income Strategy ETF | C3.ai, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $9.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [2]
YieldMax(R) AI Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.90%)
YieldMax(R) AI Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (7.10%)
YieldMax(R) AI Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
YieldMax(R) AI Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 94.70%
YieldMax(R) AMD Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 54.70%
YieldMax(R) AMD Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
YieldMax(R) AMD Option Income Strategy ETF | Advanced Micro Devices, Inc., Expiration: 05/15/2026; Exercise Price: $350.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
YieldMax(R) AMD Option Income Strategy ETF | Advanced Micro Devices, Inc., Expiration: 05/15/2026; Exercise Price: $350.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (6.70%)
YieldMax(R) AMD Option Income Strategy ETF | Advanced Micro Devices, Inc., Expiration: 05/01/2026; Exercise Price: $355.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.70%)
YieldMax(R) AMD Option Income Strategy ETF | Advanced Micro Devices, Inc., Expiration: 05/01/2026; Exercise Price: $357.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.30%)
YieldMax(R) AMD Option Income Strategy ETF | Advanced Micro Devices, Inc., Expiration: 05/01/2026; Exercise Price: $350.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.30%)
YieldMax(R) AMD Option Income Strategy ETF | Advanced Micro Devices, Inc., Expiration: 05/01/2026; Exercise Price: $370.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
YieldMax(R) AMD Option Income Strategy ETF | Advanced Micro Devices, Inc., Expiration: 05/08/2026; Exercise Price: $360.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) AMD Option Income Strategy ETF | Advanced Micro Devices, Inc., Expiration: 05/08/2026; Exercise Price: $372.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
YieldMax(R) AMD Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.40%)
YieldMax(R) AMD Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (6.70%)
YieldMax(R) AMD Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
YieldMax(R) AMD Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 92.80%
YieldMax(R) AMZN Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 77.50%
YieldMax(R) AMZN Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
YieldMax(R) AMZN Option Income Strategy ETF | Amazon.com, Inc., Expiration: 05/15/2026; Exercise Price: $210.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
YieldMax(R) AMZN Option Income Strategy ETF | Amazon.com, Inc., Expiration: 05/01/2026; Exercise Price: $262.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.80%)
YieldMax(R) AMZN Option Income Strategy ETF | Amazon.com, Inc., Expiration: 05/01/2026; Exercise Price: $267.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.20%)
YieldMax(R) AMZN Option Income Strategy ETF | Amazon.com, Inc., Expiration: 05/01/2026; Exercise Price: $260.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) AMZN Option Income Strategy ETF | Amazon.com, Inc., Expiration: 05/01/2026; Exercise Price: $272.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
YieldMax(R) AMZN Option Income Strategy ETF | Amazon.com, Inc., Expiration: 05/15/2026; Exercise Price: $210.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%) [3]
YieldMax(R) AMZN Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.10%)
YieldMax(R) AMZN Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
YieldMax(R) AMZN Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.10%
YieldMax(R) AMZN Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 78.90%
YieldMax(R) BABA Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 101.70%
YieldMax(R) BABA Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.10%
YieldMax(R) BABA Option Income Strategy ETF | Alibaba Group Holding Ltd., Expiration: 05/15/2026; Exercise Price: $145.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (11.10%)
YieldMax(R) BABA Option Income Strategy ETF | Alibaba Group Holding Ltd., Expiration: 05/15/2026; Exercise Price: $145.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
YieldMax(R) BABA Option Income Strategy ETF | Alibaba Group Holding Ltd., Expiration: 05/08/2026; Exercise Price: $132.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.50%)
YieldMax(R) BABA Option Income Strategy ETF | Alibaba Group Holding Ltd., Expiration: 05/08/2026; Exercise Price: $136.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
YieldMax(R) BABA Option Income Strategy ETF | Alibaba Group Holding Ltd., Expiration: 05/01/2026; Exercise Price: $133.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) BABA Option Income Strategy ETF | Alibaba Group Holding Ltd., Expiration: 05/01/2026; Exercise Price: $134.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) BABA Option Income Strategy ETF | Alibaba Group Holding Ltd., Expiration: 05/01/2026; Exercise Price: $135.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%) [4]
YieldMax(R) BABA Option Income Strategy ETF | Alibaba Group Holding Ltd., Expiration: 05/01/2026; Exercise Price: $137.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [5]
YieldMax(R) BABA Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.70%)
YieldMax(R) BABA Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (11.10%)
YieldMax(R) BABA Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
YieldMax(R) BABA Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 98.40%
YieldMax(R) BRK.B Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 92.20%
YieldMax(R) BRK.B Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
YieldMax(R) BRK.B Option Income Strategy ETF | Berkshire Hathaway, Inc. - Class B, Expiration: 05/15/2026; Exercise Price: $490.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.70%)
YieldMax(R) BRK.B Option Income Strategy ETF | Berkshire Hathaway, Inc. - Class B, Expiration: 05/15/2026; Exercise Price: $490.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
YieldMax(R) BRK.B Option Income Strategy ETF | Berkshire Hathaway, Inc. - Class B, Expiration: 05/01/2026; Exercise Price: $472.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.50%)
YieldMax(R) BRK.B Option Income Strategy ETF | Berkshire Hathaway, Inc. - Class B, Expiration: 05/01/2026; Exercise Price: $470.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.20%)
YieldMax(R) BRK.B Option Income Strategy ETF | Berkshire Hathaway, Inc. - Class B, Expiration: 05/01/2026; Exercise Price: $477.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
YieldMax(R) BRK.B Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.80%)
YieldMax(R) BRK.B Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.70%)
YieldMax(R) BRK.B Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
YieldMax(R) BRK.B Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 99.20%
YieldMax(R) Bitcoin Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 75.90%
YieldMax(R) Bitcoin Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
YieldMax(R) Bitcoin Option Income Strategy ETF | iShares Bitcoin Trust ETF, Expiration: 05/15/2026; Exercise Price: $40.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
YieldMax(R) Bitcoin Option Income Strategy ETF | iShares Bitcoin Trust ETF, Expiration: 05/08/2026; Exercise Price: $43.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.40%)
YieldMax(R) Bitcoin Option Income Strategy ETF | iShares Bitcoin Trust ETF, Expiration: 05/15/2026; Exercise Price: $40.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.90%)
YieldMax(R) Bitcoin Option Income Strategy ETF | iShares Bitcoin Trust ETF, Expiration: 05/08/2026; Exercise Price: $44.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
YieldMax(R) Bitcoin Option Income Strategy ETF | iShares Bitcoin Trust ETF, Expiration: 05/08/2026; Exercise Price: $44.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.40%)
YieldMax(R) Bitcoin Option Income Strategy ETF | iShares Bitcoin Trust ETF, Expiration: 05/08/2026; Exercise Price: $45.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
YieldMax(R) Bitcoin Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.90%)
YieldMax(R) Bitcoin Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.90%)
YieldMax(R) Bitcoin Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.60%
YieldMax(R) Bitcoin Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 90.40%
YieldMax(R) COIN Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 91.90%
YieldMax(R) COIN Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
YieldMax(R) COIN Option Income Strategy ETF | Coinbase Global, Inc. - Class A, Expiration: 06/18/2026; Exercise Price: $170.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
YieldMax(R) COIN Option Income Strategy ETF | Coinbase Global, Inc. - Class A, Expiration: 05/15/2026; Exercise Price: $190.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.30%)
YieldMax(R) COIN Option Income Strategy ETF | Coinbase Global, Inc. - Class A, Expiration: 06/18/2026; Exercise Price: $170.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.00%)
YieldMax(R) COIN Option Income Strategy ETF | Coinbase Global, Inc. - Class A, Expiration: 05/15/2026; Exercise Price: $190.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
YieldMax(R) COIN Option Income Strategy ETF | Coinbase Global, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $185.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.60%)
YieldMax(R) COIN Option Income Strategy ETF | Coinbase Global, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $195.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
YieldMax(R) COIN Option Income Strategy ETF | Coinbase Global, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $187.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.10%)
YieldMax(R) COIN Option Income Strategy ETF | Coinbase Global, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $197.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
YieldMax(R) COIN Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (4.00%)
YieldMax(R) COIN Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (6.30%)
YieldMax(R) COIN Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.30%
YieldMax(R) COIN Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 86.70%
YieldMax(R) CVNA Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 76.40%
YieldMax(R) CVNA Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
YieldMax(R) CVNA Option Income Strategy ETF | Carvana Co., Expiration: 05/15/2026; Exercise Price: $330.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 16.90%
YieldMax(R) CVNA Option Income Strategy ETF | Carvana Co., Expiration: 05/08/2026; Exercise Price: $385.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.10%)
YieldMax(R) CVNA Option Income Strategy ETF | Carvana Co., Expiration: 05/08/2026; Exercise Price: $390.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.90%)
YieldMax(R) CVNA Option Income Strategy ETF | Carvana Co., Expiration: 05/08/2026; Exercise Price: $397.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.80%)
YieldMax(R) CVNA Option Income Strategy ETF | Carvana Co., Expiration: 05/08/2026; Exercise Price: $400.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
YieldMax(R) CVNA Option Income Strategy ETF | Carvana Co., Expiration: 05/08/2026; Exercise Price: $405.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
YieldMax(R) CVNA Option Income Strategy ETF | Carvana Co., Expiration: 05/08/2026; Exercise Price: $412.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
YieldMax(R) CVNA Option Income Strategy ETF | Carvana Co., Expiration: 05/01/2026; Exercise Price: $410.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) CVNA Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.00%)
YieldMax(R) CVNA Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.80%)
YieldMax(R) CVNA Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.60%
YieldMax(R) CVNA Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 80.40%
YieldMax(R) DIS Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 101.70%
YieldMax(R) DIS Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
YieldMax(R) DIS Option Income Strategy ETF | The Walt Disney Co., Expiration: 05/15/2026; Exercise Price: $110.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (7.50%)
YieldMax(R) DIS Option Income Strategy ETF | The Walt Disney Co., Expiration: 05/15/2026; Exercise Price: $110.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
YieldMax(R) DIS Option Income Strategy ETF | The Walt Disney Co., Expiration: 05/01/2026; Exercise Price: $104.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.50%)
YieldMax(R) DIS Option Income Strategy ETF | The Walt Disney Co., Expiration: 05/01/2026; Exercise Price: $106.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
YieldMax(R) DIS Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.50%)
YieldMax(R) DIS Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (7.50%)
YieldMax(R) DIS Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
YieldMax(R) DIS Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 98.40%
YieldMax(R) DKNG Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 49.60%
YieldMax(R) DKNG Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 17.20%
YieldMax(R) DKNG Option Income Strategy ETF | DraftKings, Inc., Expiration: 05/15/2026; Exercise Price: $25.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (10.70%)
YieldMax(R) DKNG Option Income Strategy ETF | DraftKings, Inc., Expiration: 05/15/2026; Exercise Price: $25.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
YieldMax(R) DKNG Option Income Strategy ETF | DraftKings, Inc., Expiration: 05/01/2026; Exercise Price: $23.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.30%)
YieldMax(R) DKNG Option Income Strategy ETF | DraftKings, Inc., Expiration: 05/01/2026; Exercise Price: $23.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.30%)
YieldMax(R) DKNG Option Income Strategy ETF | DraftKings, Inc., Expiration: 05/01/2026; Exercise Price: $24.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
YieldMax(R) DKNG Option Income Strategy ETF | DraftKings, Inc., Expiration: 05/01/2026; Exercise Price: $25.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [6]
YieldMax(R) DKNG Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.60%)
YieldMax(R) DKNG Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (10.70%)
YieldMax(R) DKNG Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
YieldMax(R) DKNG Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 96.40%
YieldMax(R) Gold Miners Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 96.70%
YieldMax(R) Gold Miners Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
YieldMax(R) Gold Miners Option Income Strategy ETF | VanEck Gold Miners ETF, Expiration: 05/15/2026; Exercise Price: $90.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (4.40%)
YieldMax(R) Gold Miners Option Income Strategy ETF | VanEck Gold Miners ETF, Expiration: 05/15/2026; Exercise Price: $90.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
YieldMax(R) Gold Miners Option Income Strategy ETF | VanEck Gold Miners ETF, Expiration: 05/08/2026; Exercise Price: $90.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.00%)
YieldMax(R) Gold Miners Option Income Strategy ETF | VanEck Gold Miners ETF, Expiration: 05/08/2026; Exercise Price: $93.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
YieldMax(R) Gold Miners Option Income Strategy ETF | VanEck Gold Miners ETF, Expiration: 05/08/2026; Exercise Price: $89.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.30%)
YieldMax(R) Gold Miners Option Income Strategy ETF | VanEck Gold Miners ETF, Expiration: 05/08/2026; Exercise Price: $94.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
YieldMax(R) Gold Miners Option Income Strategy ETF | VanEck Gold Miners ETF, Expiration: 05/01/2026; Exercise Price: $90.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%) [7]
YieldMax(R) Gold Miners Option Income Strategy ETF | VanEck Gold Miners ETF, Expiration: 05/01/2026; Exercise Price: $91.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%) [7]
YieldMax(R) Gold Miners Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.40%)
YieldMax(R) Gold Miners Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (4.30%)
YieldMax(R) Gold Miners Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
YieldMax(R) Gold Miners Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 97.00%
YieldMax(R) GOOGL Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 80.40%
YieldMax(R) GOOGL Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
YieldMax(R) GOOGL Option Income Strategy ETF | Alphabet, Inc. - Class A, Expiration: 05/15/2026; Exercise Price: $310.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.70%
YieldMax(R) GOOGL Option Income Strategy ETF | Alphabet, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $375.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (2.40%)
YieldMax(R) GOOGL Option Income Strategy ETF | Alphabet, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $382.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
YieldMax(R) GOOGL Option Income Strategy ETF | Alphabet, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $380.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.40%)
YieldMax(R) GOOGL Option Income Strategy ETF | Alphabet, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $395.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
YieldMax(R) GOOGL Option Income Strategy ETF | Alphabet, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $387.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.20%)
YieldMax(R) GOOGL Option Income Strategy ETF | Alphabet, Inc. - Class A, Expiration: 05/15/2026; Exercise Price: $310.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%) [8]
YieldMax(R) GOOGL Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.10%)
YieldMax(R) GOOGL Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%) [9]
YieldMax(R) GOOGL Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.60%
YieldMax(R) GOOGL Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 78.40%
YieldMax(R) HOOD Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 92.00%
YieldMax(R) HOOD Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
YieldMax(R) HOOD Option Income Strategy ETF | Robinhood Markets, Inc. - Class A, Expiration: 06/18/2026; Exercise Price: $70.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
YieldMax(R) HOOD Option Income Strategy ETF | Robinhood Markets, Inc. - Class A, Expiration: 06/18/2026; Exercise Price: $70.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (6.30%)
YieldMax(R) HOOD Option Income Strategy ETF | Robinhood Markets, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $76.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.70%)
YieldMax(R) HOOD Option Income Strategy ETF | Robinhood Markets, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $75.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.70%)
YieldMax(R) HOOD Option Income Strategy ETF | Robinhood Markets, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $74.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.40%)
YieldMax(R) HOOD Option Income Strategy ETF | Robinhood Markets, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $81.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
YieldMax(R) HOOD Option Income Strategy ETF | Robinhood Markets, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $80.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
YieldMax(R) HOOD Option Income Strategy ETF | Robinhood Markets, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $79.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
YieldMax(R) HOOD Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.90%)
YieldMax(R) HOOD Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (6.30%)
YieldMax(R) HOOD Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.50%
YieldMax(R) HOOD Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 88.50%
YieldMax(R) Innovation Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 88.50%
YieldMax(R) Innovation Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
YieldMax(R) Innovation Option Income Strategy ETF | ARK Innovation ETF, Expiration: 06/18/2026; Exercise Price: $70.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
YieldMax(R) Innovation Option Income Strategy ETF | ARK Innovation ETF, Expiration: 06/18/2026; Exercise Price: $70.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (2.90%)
YieldMax(R) Innovation Option Income Strategy ETF | ARK Innovation ETF, Expiration: 05/08/2026; Exercise Price: $75.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.90%)
YieldMax(R) Innovation Option Income Strategy ETF | ARK Innovation ETF, Expiration: 05/08/2026; Exercise Price: $78.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
YieldMax(R) Innovation Option Income Strategy ETF | ARK Innovation ETF, Expiration: 05/01/2026; Exercise Price: $77.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) Innovation Option Income Strategy ETF | ARK Innovation ETF, Expiration: 05/01/2026; Exercise Price: $78.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%) [10]
YieldMax(R) Innovation Option Income Strategy ETF | ARK Innovation ETF, Expiration: 05/01/2026; Exercise Price: $81.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [11]
YieldMax(R) Innovation Option Income Strategy ETF | ARK Innovation ETF, Expiration: 05/01/2026; Exercise Price: $80.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [11]
YieldMax(R) Innovation Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.00%)
YieldMax(R) Innovation Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (2.90%)
YieldMax(R) Innovation Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.90%
YieldMax(R) Innovation Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 89.10%
YieldMax(R) JP Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 87.20%
YieldMax(R) JP Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
YieldMax(R) JP Option Income Strategy ETF | JPMorgan Chase & Co., Expiration: 05/15/2026; Exercise Price: $290.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.40%
YieldMax(R) JP Option Income Strategy ETF | JPMorgan Chase & Co., Expiration: 05/15/2026; Exercise Price: $290.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
YieldMax(R) JP Option Income Strategy ETF | JPMorgan Chase & Co., Expiration: 05/08/2026; Exercise Price: $315.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.30%)
YieldMax(R) JP Option Income Strategy ETF | JPMorgan Chase & Co., Expiration: 05/01/2026; Exercise Price: $312.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.20%)
YieldMax(R) JP Option Income Strategy ETF | JPMorgan Chase & Co., Expiration: 05/08/2026; Exercise Price: $320.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
YieldMax(R) JP Option Income Strategy ETF | JPMorgan Chase & Co., Expiration: 05/08/2026; Exercise Price: $317.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) JP Option Income Strategy ETF | JPMorgan Chase & Co., Expiration: 05/08/2026; Exercise Price: $322.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [12]
YieldMax(R) JP Option Income Strategy ETF | JPMorgan Chase & Co., Expiration: 05/01/2026; Exercise Price: $315.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%) [13]
YieldMax(R) JP Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.70%)
YieldMax(R) JP Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.20%)
YieldMax(R) JP Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
YieldMax(R) JP Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 91.90%
YieldMax(R) Magnificent 7 Fund of Option Income ETFs | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
YieldMax(R) Magnificent 7 Fund of Option Income ETFs | YieldMax GOOGL Option Income Strategy ETF [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.60%
YieldMax(R) Magnificent 7 Fund of Option Income ETFs | YieldMax AMZN Option Income Strategy ETF [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.30%
YieldMax(R) Magnificent 7 Fund of Option Income ETFs | YieldMax AAPL Option Income Strategy ETF [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.10%
YieldMax(R) Magnificent 7 Fund of Option Income ETFs | YieldMax TSLA Option Income Strategy ETF [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.80%
YieldMax(R) Magnificent 7 Fund of Option Income ETFs | YieldMax MSFT Option Income Strategy ETF [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.80%
YieldMax(R) Magnificent 7 Fund of Option Income ETFs | YieldMax NVDA Option Income Strategy ETF [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.70%
YieldMax(R) Magnificent 7 Fund of Option Income ETFs | Yieldmax META Option Income Strategy ETF [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.80%
YieldMax(R) Magnificent 7 Fund of Option Income ETFs | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
YieldMax(R) Magnificent 7 Fund of Option Income ETFs | Exchange Traded Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 98.10%
YieldMax(R) MARA Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 81.60%
YieldMax(R) MARA Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
YieldMax(R) MARA Option Income Strategy ETF | MARA Holdings, Inc., Expiration: 05/08/2026; Exercise Price: $11.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.20%)
YieldMax(R) MARA Option Income Strategy ETF | MARA Holdings, Inc., Expiration: 05/08/2026; Exercise Price: $12.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
YieldMax(R) MARA Option Income Strategy ETF | MARA Holdings, Inc., Expiration: 05/08/2026; Exercise Price: $11.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (2.10%)
YieldMax(R) MARA Option Income Strategy ETF | MARA Holdings, Inc., Expiration: 05/08/2026; Exercise Price: $12.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
YieldMax(R) MARA Option Income Strategy ETF | MARA Holdings, Inc., Expiration: 05/15/2026; Exercise Price: $12.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
YieldMax(R) MARA Option Income Strategy ETF | MARA Holdings, Inc., Expiration: 05/01/2026; Exercise Price: $12.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.20%)
YieldMax(R) MARA Option Income Strategy ETF | MARA Holdings, Inc., Expiration: 05/08/2026; Exercise Price: $13.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) MARA Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (5.70%)
YieldMax(R) MARA Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (7.40%)
YieldMax(R) MARA Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.70%
YieldMax(R) MARA Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 89.30%
YieldMax(R) META Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 86.50%
YieldMax(R) META Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.40%)
YieldMax(R) META Option Income Strategy ETF | Meta Platforms, Inc. - Class A, Expiration: 06/18/2026; Exercise Price: $570.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
YieldMax(R) META Option Income Strategy ETF | Meta Platforms, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $615.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.70%)
YieldMax(R) META Option Income Strategy ETF | Meta Platforms, Inc. - Class A, Expiration: 06/18/2026; Exercise Price: $570.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.40%)
YieldMax(R) META Option Income Strategy ETF | Meta Platforms, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $620.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.40%)
YieldMax(R) META Option Income Strategy ETF | Meta Platforms, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $632.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
YieldMax(R) META Option Income Strategy ETF | Meta Platforms, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $630.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.30%)
YieldMax(R) META Option Income Strategy ETF | Meta Platforms, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $637.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
YieldMax(R) META Option Income Strategy ETF | Meta Platforms, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $617.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.20%)
YieldMax(R) META Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.60%)
YieldMax(R) META Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.80%)
YieldMax(R) META Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
YieldMax(R) META Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 90.00%
YieldMax(R) MRNA Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 98.20%
YieldMax(R) MRNA Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
YieldMax(R) MRNA Option Income Strategy ETF | Moderna, Inc., Expiration: 05/15/2026; Exercise Price: $50.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (11.90%)
YieldMax(R) MRNA Option Income Strategy ETF | Moderna, Inc., Expiration: 05/15/2026; Exercise Price: $50.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
YieldMax(R) MRNA Option Income Strategy ETF | Moderna, Inc., Expiration: 05/01/2026; Exercise Price: $52.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.30%)
YieldMax(R) MRNA Option Income Strategy ETF | Moderna, Inc., Expiration: 05/01/2026; Exercise Price: $55.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
YieldMax(R) MRNA Option Income Strategy ETF | Moderna, Inc., Expiration: 05/01/2026; Exercise Price: $53.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) MRNA Option Income Strategy ETF | Moderna, Inc., Expiration: 05/01/2026; Exercise Price: $54.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) MRNA Option Income Strategy ETF | Moderna, Inc., Expiration: 05/01/2026; Exercise Price: $56.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
YieldMax(R) MRNA Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.50%)
YieldMax(R) MRNA Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (11.80%)
YieldMax(R) MRNA Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
YieldMax(R) MRNA Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 96.60%
YieldMax(R) MSFT Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 96.40%
YieldMax(R) MSFT Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
YieldMax(R) MSFT Option Income Strategy ETF | Microsoft Corp., Expiration: 05/15/2026; Exercise Price: $400.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
YieldMax(R) MSFT Option Income Strategy ETF | Microsoft Corp., Expiration: 05/15/2026; Exercise Price: $400.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.50%)
YieldMax(R) MSFT Option Income Strategy ETF | Microsoft Corp., Expiration: 05/08/2026; Exercise Price: $405.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.70%)
YieldMax(R) MSFT Option Income Strategy ETF | Microsoft Corp., Expiration: 05/08/2026; Exercise Price: $407.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.70%)
YieldMax(R) MSFT Option Income Strategy ETF | Microsoft Corp., Expiration: 05/08/2026; Exercise Price: $412.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
YieldMax(R) MSFT Option Income Strategy ETF | Microsoft Corp., Expiration: 05/08/2026; Exercise Price: $415.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
YieldMax(R) MSFT Option Income Strategy ETF | Microsoft Corp., Expiration: 05/01/2026; Exercise Price: $425.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%) [14]
YieldMax(R) MSFT Option Income Strategy ETF | Microsoft Corp., Expiration: 05/01/2026; Exercise Price: $440.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [15]
YieldMax(R) MSFT Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.50%)
YieldMax(R) MSFT Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.40%)
YieldMax(R) MSFT Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%
YieldMax(R) MSFT Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 95.60%
YieldMax(R) MSTR Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.70%
YieldMax(R) MSTR Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
YieldMax(R) MSTR Option Income Strategy ETF | Strategy, Inc., Expiration: 06/18/2026; Exercise Price: $130.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
YieldMax(R) MSTR Option Income Strategy ETF | Strategy, Inc., Expiration: 06/18/2026; Exercise Price: $125.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
YieldMax(R) MSTR Option Income Strategy ETF | Strategy, Inc., Expiration: 05/15/2026; Exercise Price: $140.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
YieldMax(R) MSTR Option Income Strategy ETF | Strategy, Inc., Expiration: 05/08/2026; Exercise Price: $167.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.90%)
YieldMax(R) MSTR Option Income Strategy ETF | Strategy, Inc., Expiration: 06/18/2026; Exercise Price: $130.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.80%)
YieldMax(R) MSTR Option Income Strategy ETF | Strategy, Inc., Expiration: 05/08/2026; Exercise Price: $170.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.60%)
YieldMax(R) MSTR Option Income Strategy ETF | Strategy, Inc., Expiration: 06/18/2026; Exercise Price: $125.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.50%)
YieldMax(R) MSTR Option Income Strategy ETF | Strategy, Inc., Expiration: 05/08/2026; Exercise Price: $177.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
YieldMax(R) MSTR Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.80%)
YieldMax(R) MSTR Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.80%)
YieldMax(R) MSTR Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 22.90%
YieldMax(R) MSTR Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 77.10%
YieldMax(R) NFLX Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 99.70%
YieldMax(R) NFLX Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
YieldMax(R) NFLX Option Income Strategy ETF | Netflix, Inc., Expiration: 05/15/2026; Exercise Price: $95.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.10%)
YieldMax(R) NFLX Option Income Strategy ETF | Netflix, Inc., Expiration: 05/15/2026; Exercise Price: $95.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
YieldMax(R) NFLX Option Income Strategy ETF | Netflix, Inc., Expiration: 05/08/2026; Exercise Price: $94.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.30%)
YieldMax(R) NFLX Option Income Strategy ETF | Netflix, Inc., Expiration: 05/01/2026; Exercise Price: $93.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.20%)
YieldMax(R) NFLX Option Income Strategy ETF | Netflix, Inc., Expiration: 05/01/2026; Exercise Price: $94.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) NFLX Option Income Strategy ETF | Netflix, Inc., Expiration: 05/08/2026; Exercise Price: $97.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
YieldMax(R) NFLX Option Income Strategy ETF | Netflix, Inc., Expiration: 05/01/2026; Exercise Price: $91.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) NFLX Option Income Strategy ETF | Netflix, Inc., Expiration: 05/01/2026; Exercise Price: $95.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) NFLX Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.80%)
YieldMax(R) NFLX Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.10%)
YieldMax(R) NFLX Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
YieldMax(R) NFLX Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 98.10%
YieldMax(R) NVDA Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 95.40%
YieldMax(R) NVDA Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
YieldMax(R) NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 05/15/2026; Exercise Price: $200.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (2.00%)
YieldMax(R) NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 05/15/2026; Exercise Price: $200.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
YieldMax(R) NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 05/15/2026; Exercise Price: $195.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
YieldMax(R) NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 05/08/2026; Exercise Price: $205.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.80%)
YieldMax(R) NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 05/15/2026; Exercise Price: $195.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.80%)
YieldMax(R) NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 05/08/2026; Exercise Price: $212.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
YieldMax(R) NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 05/08/2026; Exercise Price: $210.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
YieldMax(R) NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 05/01/2026; Exercise Price: $205.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%) [16]
YieldMax(R) NVDA Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.90%)
YieldMax(R) NVDA Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (2.70%)
YieldMax(R) NVDA Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
YieldMax(R) NVDA Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 96.00%
YieldMax(R) PLTR Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 101.70%
YieldMax(R) PLTR Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
YieldMax(R) PLTR Option Income Strategy ETF | Palantir Technologies, Inc., Expiration: 6/18/2026; Exercise Price: $150.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (5.80%)
YieldMax(R) PLTR Option Income Strategy ETF | Palantir Technologies, Inc., Expiration: 5/15/2026; Exercise Price: $150.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (5.60%)
YieldMax(R) PLTR Option Income Strategy ETF | Palantir Technologies, Inc., Expiration: 6/18/2026; Exercise Price: $150.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
YieldMax(R) PLTR Option Income Strategy ETF | Palantir Technologies, Inc., Expiration: 5/8/2026; Exercise Price: $142.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
YieldMax(R) PLTR Option Income Strategy ETF | Palantir Technologies, Inc., Expiration: 5/15/2026; Exercise Price: $150.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (2.20%)
YieldMax(R) PLTR Option Income Strategy ETF | Palantir Technologies, Inc., Expiration: 5/8/2026; Exercise Price: $149.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
YieldMax(R) PLTR Option Income Strategy ETF | Palantir Technologies, Inc., Expiration: 5/8/2026; Exercise Price: $145.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
YieldMax(R) PLTR Option Income Strategy ETF | Palantir Technologies, Inc., Expiration: 5/8/2026; Exercise Price: $152.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.60%)
YieldMax(R) PLTR Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
YieldMax(R) PLTR Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 94.30%
YieldMax(R) PYPL Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 97.10%
YieldMax(R) PYPL Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
YieldMax(R) PYPL Option Income Strategy ETF | PayPal Holdings, Inc., Expiration: 05/15/2026; Exercise Price: $50.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
YieldMax(R) PYPL Option Income Strategy ETF | PayPal Holdings, Inc., Expiration: 05/15/2026; Exercise Price: $50.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (4.50%)
YieldMax(R) PYPL Option Income Strategy ETF | PayPal Holdings, Inc., Expiration: 05/01/2026; Exercise Price: $50.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.40%)
YieldMax(R) PYPL Option Income Strategy ETF | PayPal Holdings, Inc., Expiration: 05/01/2026; Exercise Price: $51.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) PYPL Option Income Strategy ETF | PayPal Holdings, Inc., Expiration: 05/01/2026; Exercise Price: $53.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [17]
YieldMax(R) PYPL Option Income Strategy ETF | PayPal Holdings, Inc., Expiration: 05/01/2026; Exercise Price: $52.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [17]
YieldMax(R) PYPL Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.60%)
YieldMax(R) PYPL Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (4.50%)
YieldMax(R) PYPL Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
YieldMax(R) PYPL Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 94.90%
YieldMax(R) RBLX Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 72.90%
YieldMax(R) RBLX Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.20%
YieldMax(R) RBLX Option Income Strategy ETF | Roblox Corp., Expiration: 05/01/2026; Exercise Price: $55.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (2.90%)
YieldMax(R) RBLX Option Income Strategy ETF | Roblox Corp., Expiration: 05/01/2026; Exercise Price: $63.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.90%)
YieldMax(R) RBLX Option Income Strategy ETF | Roblox Corp., Expiration: 05/01/2026; Exercise Price: $61.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
YieldMax(R) RBLX Option Income Strategy ETF | Roblox Corp., Expiration: 05/01/2026; Exercise Price: $62.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.80%)
YieldMax(R) RBLX Option Income Strategy ETF | Roblox Corp., Expiration: 05/01/2026; Exercise Price: $60.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
YieldMax(R) RBLX Option Income Strategy ETF | Roblox Corp., Expiration: 05/01/2026; Exercise Price: $68.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
YieldMax(R) RBLX Option Income Strategy ETF | Roblox Corp., Expiration: 05/01/2026; Exercise Price: $67.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
YieldMax(R) RBLX Option Income Strategy ETF | Roblox Corp., Expiration: 05/08/2026; Exercise Price: $56.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
YieldMax(R) RBLX Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (4.60%)
YieldMax(R) RBLX Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (7.90%)
YieldMax(R) RBLX Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.50%
YieldMax(R) RBLX Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 89.50%
YieldMax(R) Short COIN Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 85.40%
YieldMax(R) Short COIN Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.70%
YieldMax(R) Short COIN Option Income Strategy ETF | Coinbase Global, Inc. - Class A, Expiration: 05/15/2026; Exercise Price: $190.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
YieldMax(R) Short COIN Option Income Strategy ETF | Coinbase Global, Inc. - Class A, Expiration: 05/15/2026; Exercise Price: $190.02 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (5.90%)
YieldMax(R) Short COIN Option Income Strategy ETF | Coinbase Global, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $182.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.10%)
YieldMax(R) Short COIN Option Income Strategy ETF | Coinbase Global, Inc. - Class A, Expiration: 05/01/2026; Exercise Price: $192.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.10%)
YieldMax(R) Short COIN Option Income Strategy ETF | Coinbase Global, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $175.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
YieldMax(R) Short COIN Option Income Strategy ETF | Coinbase Global, Inc. - Class A, Expiration: 05/01/2026; Exercise Price: $195.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.40%)
YieldMax(R) Short COIN Option Income Strategy ETF | Coinbase Global, Inc. - Class A, Expiration: 05/08/2026; Exercise Price: $177.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.30%)
YieldMax(R) Short COIN Option Income Strategy ETF | Coinbase Global, Inc. - Class A, Expiration: 05/01/2026; Exercise Price: $182.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
YieldMax(R) Short COIN Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (5.80%)
YieldMax(R) Short COIN Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.20%)
YieldMax(R) Short COIN Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
YieldMax(R) Short COIN Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 91.70%
YieldMax(R) Short COIN Option Income Strategy ETF | Purchased Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
YieldMax(R) Short N100 Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 86.90%
YieldMax(R) Short N100 Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
YieldMax(R) Short N100 Option Income Strategy ETF | Invesco QQQ Trust Series 1, Expiration: 06/18/2026; Exercise Price: $600.02 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (11.30%)
YieldMax(R) Short N100 Option Income Strategy ETF | Invesco QQQ Trust Series 1, Expiration: 06/18/2026; Exercise Price: $600.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
YieldMax(R) Short N100 Option Income Strategy ETF | Invesco QQQ Trust Series 1, Expiration: 05/08/2026; Exercise Price: $655.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) Short N100 Option Income Strategy ETF | Invesco QQQ Trust Series 1, Expiration: 05/08/2026; Exercise Price: $648.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%) [18]
YieldMax(R) Short N100 Option Income Strategy ETF | Invesco QQQ Trust Series 1, Expiration: 05/08/2026; Exercise Price: $645.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%) [18]
YieldMax(R) Short N100 Option Income Strategy ETF | Invesco QQQ Trust Series 1, Expiration: 06/18/2026; Exercise Price: $900.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [19]
YieldMax(R) Short N100 Option Income Strategy ETF | Invesco QQQ Trust Series 1, Expiration: 05/01/2026; Exercise Price: $643.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%) [18]
YieldMax(R) Short N100 Option Income Strategy ETF | Invesco QQQ Trust Series 1, Expiration: 05/01/2026; Exercise Price: $648.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%) [18]
YieldMax(R) Short N100 Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (11.30%)
YieldMax(R) Short N100 Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.20%)
YieldMax(R) Short N100 Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [20]
YieldMax(R) Short N100 Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 99.40%
YieldMax(R) Short N100 Option Income Strategy ETF | Purchased Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
YieldMax(R) Short NVDA Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 83.90%
YieldMax(R) Short NVDA Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.00%
YieldMax(R) Short NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 05/15/2026; Exercise Price: $190.02 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (6.00%)
YieldMax(R) Short NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 05/15/2026; Exercise Price: $190.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
YieldMax(R) Short NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 05/01/2026; Exercise Price: $197.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.30%)
YieldMax(R) Short NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 05/01/2026; Exercise Price: $195.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%) [21]
YieldMax(R) Short NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 05/01/2026; Exercise Price: $190.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [22]
YieldMax(R) Short NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 05/15/2026; Exercise Price: $280.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [22]
YieldMax(R) Short NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 05/01/2026; Exercise Price: $185.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [22]
YieldMax(R) Short NVDA Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (6.00%)
YieldMax(R) Short NVDA Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.40%)
YieldMax(R) Short NVDA Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [23]
YieldMax(R) Short NVDA Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 98.70%
YieldMax(R) Short NVDA Option Income Strategy ETF | Purchased Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
YieldMax(R) Short TSLA Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 84.60%
YieldMax(R) Short TSLA Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
YieldMax(R) Short TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 05/15/2026; Exercise Price: $405.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
YieldMax(R) Short TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 05/15/2026; Exercise Price: $405.02 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.30%)
YieldMax(R) Short TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 05/08/2026; Exercise Price: $372.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.70%)
YieldMax(R) Short TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 05/08/2026; Exercise Price: $355.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
YieldMax(R) Short TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 05/15/2026; Exercise Price: $595.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [24]
YieldMax(R) Short TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 05/01/2026; Exercise Price: $367.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.00%) [25]
YieldMax(R) Short TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 05/01/2026; Exercise Price: $347.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [24]
YieldMax(R) Short TSLA Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.30%)
YieldMax(R) Short TSLA Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.70%)
YieldMax(R) Short TSLA Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [26]
YieldMax(R) Short TSLA Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 92.30%
YieldMax(R) Short TSLA Option Income Strategy ETF | Purchased Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
YieldMax(R) SMCI Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 113.70%
YieldMax(R) SMCI Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
YieldMax(R) SMCI Option Income Strategy ETF | Super Micro Computer, Inc., Expiration: 05/15/2026; Exercise Price: $32.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (19.20%)
YieldMax(R) SMCI Option Income Strategy ETF | Super Micro Computer, Inc., Expiration: 05/15/2026; Exercise Price: $32.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
YieldMax(R) SMCI Option Income Strategy ETF | Super Micro Computer, Inc., Expiration: 05/08/2026; Exercise Price: $27.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (2.60%)
YieldMax(R) SMCI Option Income Strategy ETF | Super Micro Computer, Inc., Expiration: 05/08/2026; Exercise Price: $29.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
YieldMax(R) SMCI Option Income Strategy ETF | Super Micro Computer, Inc., Expiration: 05/08/2026; Exercise Price: $27.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.40%)
YieldMax(R) SMCI Option Income Strategy ETF | Super Micro Computer, Inc., Expiration: 05/08/2026; Exercise Price: $29.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
YieldMax(R) SMCI Option Income Strategy ETF | Super Micro Computer, Inc., Expiration: 05/01/2026; Exercise Price: $27.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.30%)
YieldMax(R) SMCI Option Income Strategy ETF | Super Micro Computer, Inc., Expiration: 05/01/2026; Exercise Price: $28.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.20%)
YieldMax(R) SMCI Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (4.50%)
YieldMax(R) SMCI Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (19.20%)
YieldMax(R) SMCI Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
YieldMax(R) SMCI Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 95.10%
YieldMax(R) SNOW Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00%
YieldMax(R) SNOW Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
YieldMax(R) SNOW Option Income Strategy ETF | Snowflake, Inc., Expiration: 05/15/2026; Exercise Price: $150.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (9.80%)
YieldMax(R) SNOW Option Income Strategy ETF | Snowflake, Inc., Expiration: 05/08/2026; Exercise Price: $138.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.10%)
YieldMax(R) SNOW Option Income Strategy ETF | Snowflake, Inc., Expiration: 05/08/2026; Exercise Price: $145.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
YieldMax(R) SNOW Option Income Strategy ETF | Snowflake, Inc., Expiration: 05/08/2026; Exercise Price: $140.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.40%)
YieldMax(R) SNOW Option Income Strategy ETF | Snowflake, Inc., Expiration: 05/08/2026; Exercise Price: $147.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
YieldMax(R) SNOW Option Income Strategy ETF | Snowflake, Inc., Expiration: 05/01/2026; Exercise Price: $140.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) SNOW Option Income Strategy ETF | Snowflake, Inc., Expiration: 05/01/2026; Exercise Price: $142.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) SNOW Option Income Strategy ETF | Snowflake, Inc., Expiration: 05/01/2026; Exercise Price: $147.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [27]
YieldMax(R) SNOW Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.70%)
YieldMax(R) SNOW Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (11.70%)
YieldMax(R) SNOW Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
YieldMax(R) SNOW Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 97.30%
YieldMax(R) TSLA Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 104.90%
YieldMax(R) TSLA Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
YieldMax(R) TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 05/15/2026; Exercise Price: $405.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
YieldMax(R) TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 05/15/2026; Exercise Price: $410.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (4.10%)
YieldMax(R) TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 05/15/2026; Exercise Price: $405.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.60%)
YieldMax(R) TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 05/15/2026; Exercise Price: $410.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
YieldMax(R) TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 05/01/2026; Exercise Price: $382.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.30%)
YieldMax(R) TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 05/01/2026; Exercise Price: $385.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 05/01/2026; Exercise Price: $387.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 05/01/2026; Exercise Price: $380.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.10%)
YieldMax(R) TSLA Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.60%)
YieldMax(R) TSLA Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (7.70%)
YieldMax(R) TSLA Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
YieldMax(R) TSLA Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 98.80%
YieldMax(R) TSM Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 87.70%
YieldMax(R) TSM Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
YieldMax(R) TSM Option Income Strategy ETF | Taiwan Semiconductor Manufacturing Co., Ltd. - ADR, Expiration: 05/15/2026; Exercise Price: $360.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
YieldMax(R) TSM Option Income Strategy ETF | Taiwan Semiconductor Manufacturing Co., Ltd. - ADR, Expiration: 05/15/2026; Exercise Price: $360.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
YieldMax(R) TSM Option Income Strategy ETF | Taiwan Semiconductor Manufacturing Co., Ltd. - ADR, Expiration: 05/08/2026; Exercise Price: $402.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.70%)
YieldMax(R) TSM Option Income Strategy ETF | Taiwan Semiconductor Manufacturing Co., Ltd. - ADR, Expiration: 05/08/2026; Exercise Price: $395.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.50%)
YieldMax(R) TSM Option Income Strategy ETF | Taiwan Semiconductor Manufacturing Co., Ltd. - ADR, Expiration: 05/08/2026; Exercise Price: $412.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
YieldMax(R) TSM Option Income Strategy ETF | Taiwan Semiconductor Manufacturing Co., Ltd. - ADR, Expiration: 05/01/2026; Exercise Price: $390.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.30%)
YieldMax(R) TSM Option Income Strategy ETF | Taiwan Semiconductor Manufacturing Co., Ltd. - ADR, Expiration: 05/08/2026; Exercise Price: $405.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
YieldMax(R) TSM Option Income Strategy ETF | Taiwan Semiconductor Manufacturing Co., Ltd. - ADR, Expiration: 05/01/2026; Exercise Price: $395.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.30%)
YieldMax(R) TSM Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.90%)
YieldMax(R) TSM Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.70%)
YieldMax(R) TSM Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.80%
YieldMax(R) TSM Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 89.20%
YieldMax(R) Ultra Option Income Strategy ETF | Alphabet, Inc. - Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
YieldMax(R) Ultra Option Income Strategy ETF | Analog Devices, Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
YieldMax(R) Ultra Option Income Strategy ETF | Amazon.com, Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.10%
YieldMax(R) Ultra Option Income Strategy ETF | Lam Research Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
YieldMax(R) Ultra Option Income Strategy ETF | Quanta Services, Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
YieldMax(R) Ultra Option Income Strategy ETF | Ciena Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
YieldMax(R) Ultra Option Income Strategy ETF | Lumentum Holdings, Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
YieldMax(R) Ultra Option Income Strategy ETF | NVIDIA Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
YieldMax(R) Ultra Option Income Strategy ETF | IREN Ltd. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
YieldMax(R) Ultra Option Income Strategy ETF | Strategy, Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
YieldMax(R) Ultra Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (2.50%)
YieldMax(R) Ultra Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.40%)
YieldMax(R) Ultra Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (2.00%)
YieldMax(R) Ultra Option Income Strategy ETF | Exchange Traded Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.50%
YieldMax(R) Ultra Option Income Strategy ETF | Purchased Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
YieldMax(R) Ultra Option Income Strategy ETF | Common Stocks [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 91.40%
YieldMax(R) Ultra Short Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 84.30%
YieldMax(R) Ultra Short Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
YieldMax(R) Ultra Short Option Income Strategy ETF | Oklo, Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (6.00%)
YieldMax(R) Ultra Short Option Income Strategy ETF | KKR & Co., Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (4.90%)
YieldMax(R) Ultra Short Option Income Strategy ETF | Target Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (4.60%)
YieldMax(R) Ultra Short Option Income Strategy ETF | Centene Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (4.60%)
YieldMax(R) Ultra Short Option Income Strategy ETF | Salesforce, Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (4.50%)
YieldMax(R) Ultra Short Option Income Strategy ETF | Starbucks Corp. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (4.40%)
YieldMax(R) Ultra Short Option Income Strategy ETF | Etsy, Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (4.30%)
YieldMax(R) Ultra Short Option Income Strategy ETF | Rocket Lab USA, Inc. [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (4.20%)
YieldMax(R) Ultra Short Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (2.90%)
YieldMax(R) Ultra Short Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.10%)
YieldMax(R) Ultra Short Option Income Strategy ETF | Common Stocks [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (85.80%)
YieldMax(R) Ultra Short Option Income Strategy ETF | Exchange Traded Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (11.50%)
YieldMax(R) Ultra Short Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
YieldMax(R) Ultra Short Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 96.90%
YieldMax(R) Ultra Short Option Income Strategy ETF | Common Stocks [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [28]
YieldMax(R) Universe Fund of Option Income ETFs | YieldMax GOOGL Option Income Strategy ETF [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
YieldMax(R) Universe Fund of Option Income ETFs | YieldMax AMZN Option Income Strategy ETF [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
YieldMax(R) Universe Fund of Option Income ETFs | YieldMax AMD Option Income Strategy ETF [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
YieldMax(R) Universe Fund of Option Income ETFs | YieldMax TSM Option Income Strategy ETF [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
YieldMax(R) Universe Fund of Option Income ETFs | YieldMax Crypto Industry & Tech Portfolio Option Income ETF [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
YieldMax(R) Universe Fund of Option Income ETFs | YieldMax MARA Option Income Strategy ETF [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
YieldMax(R) Universe Fund of Option Income ETFs | YieldMax AI & Tech Portfolio Option Income ETF [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
YieldMax(R) Universe Fund of Option Income ETFs | YieldMax Semiconductor Portfolio Option Income ETF [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
YieldMax(R) Universe Fund of Option Income ETFs | YieldMax HOOD Option Income Strategy ETF [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
YieldMax(R) Universe Fund of Option Income ETFs | YieldMax NFLX Option Income Strategy ETF [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
YieldMax(R) Universe Fund of Option Income ETFs | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
YieldMax(R) Universe Fund of Option Income ETFs | Exchange Traded Funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 98.60%
YieldMax(R) XOM Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 95.10%
YieldMax(R) XOM Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
YieldMax(R) XOM Option Income Strategy ETF | Exxon Mobil Corp., Expiration: 06/18/2026; Exercise Price: $150.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
YieldMax(R) XOM Option Income Strategy ETF | Exxon Mobil Corp., Expiration: 05/01/2026; Exercise Price: $150.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.60%)
YieldMax(R) XOM Option Income Strategy ETF | Exxon Mobil Corp., Expiration: 05/01/2026; Exercise Price: $152.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.20%)
YieldMax(R) XOM Option Income Strategy ETF | Exxon Mobil Corp., Expiration: 05/01/2026; Exercise Price: $155.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
YieldMax(R) XOM Option Income Strategy ETF | Exxon Mobil Corp., Expiration: 05/01/2026; Exercise Price: $160.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
YieldMax(R) XOM Option Income Strategy ETF | Exxon Mobil Corp., Expiration: 05/01/2026; Exercise Price: $157.50 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
YieldMax(R) XOM Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (2.80%)
YieldMax(R) XOM Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.30%)
YieldMax(R) XOM Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
YieldMax(R) XOM Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 93.20%
YieldMax(R) XYZ Option Income Strategy ETF | U.S. Treasury Bills [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 98.20%
YieldMax(R) XYZ Option Income Strategy ETF | First American Government Obligations Fund - Class X, 3.58% [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
YieldMax(R) XYZ Option Income Strategy ETF | Block, Inc., Expiration: 05/15/2026; Exercise Price: $70.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
YieldMax(R) XYZ Option Income Strategy ETF | Block, Inc., Expiration: 05/15/2026; Exercise Price: $70.01 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (5.80%)
YieldMax(R) XYZ Option Income Strategy ETF | Block, Inc., Expiration: 05/08/2026; Exercise Price: $70.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.30%)
YieldMax(R) XYZ Option Income Strategy ETF | Block, Inc., Expiration: 05/08/2026; Exercise Price: $73.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
YieldMax(R) XYZ Option Income Strategy ETF | Block, Inc., Expiration: 05/01/2026; Exercise Price: $72.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.30%)
YieldMax(R) XYZ Option Income Strategy ETF | Block, Inc., Expiration: 05/01/2026; Exercise Price: $74.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [29]
YieldMax(R) XYZ Option Income Strategy ETF | Block, Inc., Expiration: 05/01/2026; Exercise Price: $75.00 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [29]
YieldMax(R) XYZ Option Income Strategy ETF | Written Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.60%)
YieldMax(R) XYZ Option Income Strategy ETF | Written Put Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (5.80%)
YieldMax(R) XYZ Option Income Strategy ETF | Purchased Call Options [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
YieldMax(R) XYZ Option Income Strategy ETF | Cash and Cash Equivalents [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 92.20%
[1] Less than 0.05% of net assets.
[2] Less than 0.05% of net assets.
[3] Less than -0.05% of net assets.
[4] Less than -0.05% of net assets.
[5] Less than 0.05% of net assets.
[6] Less than 0.05% of net assets.
[7] Less than -0.05% of net assets.
[8] Less than -0.05% of net assets.
[9] Less than -0.05% of net assets
[10] Less than -0.05% of net assets.
[11] Less than 0.05% of net assets.
[12] Less than 0.05% of net assets.
[13] Less than -0.05% of net assets.
[14] Less than -0.05% of net assets.
[15] Less than 0.05% of net assets.
[16] Less than -0.05% of net assets.
[17] Less than 0.05% of net assets.
[18] Less than -0.05% of net assets.
[19] Less than 0.05% of net assets.
[20] Less than 0.05% of net assets
[21] Less than -0.05% of net assets.
[22] Less than 0.05% of net assets.
[23] Less than 0.05% of net assets
[24] Less than 0.05% of net assets.
[25] Less than -0.05% of net assets.
[26] Less than 0.05% of net assets
[27] Less than 0.05% of net assets.
[28] Less than 0.05% of net assets.
[29] Less than 0.05% of net assets.