Shareholder Report |
12 Months Ended | |||||||||||||||||||||||||
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Jul. 31, 2026
USD ($)
Holdings
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| Shareholder Report [Line Items] | ||||||||||||||||||||||||||
| Document Type | N-CSR | |||||||||||||||||||||||||
| Amendment Flag | false | |||||||||||||||||||||||||
| Registrant Name | Tidal Trust III | |||||||||||||||||||||||||
| Entity Central Index Key | 0001722388 | |||||||||||||||||||||||||
| Entity Investment Company Type | N-1A | |||||||||||||||||||||||||
| Document Period End Date | Jul. 31, 2026 | |||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |||||||||||||||||||||||||
| Rockefeller California Municipal Bond ETF [Member] | ||||||||||||||||||||||||||
| Shareholder Report [Line Items] | ||||||||||||||||||||||||||
| Fund Name | Rockefeller California Municipal Bond ETF | |||||||||||||||||||||||||
| Class Name | Rockefeller California Municipal Bond ETF | |||||||||||||||||||||||||
| Trading Symbol | RMCA | |||||||||||||||||||||||||
| Security Exchange Name | NYSEArca | |||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This contains important information about the Rockefeller California Municipal Bond ETF (the "Fund") for the period August 1, 2025 to July 31, 2026. | |||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at www.rockefelleretfs.com/rmca. You can also request this information by contacting us at (844) 992-1333 or by writing to Rockefeller California Municipal Bond ETF, c/o U.S. Bank Global Fund Services, P.O. Box 701, Milwaukee, Wisconsin 53201-0701. | |||||||||||||||||||||||||
| Additional Information Phone Number | (844) 992-1333 | |||||||||||||||||||||||||
| Additional Information Website | www.rockefelleretfs.com/rmca | |||||||||||||||||||||||||
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment)
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| Expenses Paid, Amount | $ 57 | |||||||||||||||||||||||||
| Expense Ratio, Percent | 0.55% | |||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the period 8/1/25 through 7/31/26, the Fund returned 7.00%, outperforming its benchmark by 1.95%, on a 1-year annualized basis, primarily due to longer duration exposure and strong security selection. In addition to strong security selection, the fund benefited from municipal yields flattening during the period with 10-year yields higher by 12 bps, from 3.18% to 3.30%, while the 30-year bond tightened by 12 bps going from 4.57% to 4.46%. There was also significant outperformance attributable to muni/treasury ratio’s tightening from 95% to 85% over the period. As of month-end, the Fund’s twelve month distribution yield was 4.53%, and credit fundamentals across the municipal market remain strong. The Fund maintains a bottom-up, credit-intensive strategy focused on yield-driven total return, recognizing that short-term volatility may occasionally outweigh income. |
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| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is not a good indicator of how the Fund will perform in the future. | |||||||||||||||||||||||||
| Line Graph [Table Text Block] | Cumulative Performance (Initial Investment of $10,000) ![]() |
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| Average Annual Return [Table Text Block] | Annual Performance
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| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. | |||||||||||||||||||||||||
| Updated Performance Information Location [Text Block] | Visit www.rockefelleretfs.com/rmca for more recent performance information. | |||||||||||||||||||||||||
| Net Assets | $ 19,134,000 | |||||||||||||||||||||||||
| Holdings Count | Holdings | 87 | |||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 88,844 | |||||||||||||||||||||||||
| Investment Company, Portfolio Turnover | 146.00% | |||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of July 31, 2026)
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| Largest Holdings [Text Block] | What did the Fund invest in? (as of July 31, 2026)
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| Rockefeller Global Equity ETF [Member] | ||||||||||||||||||||||||||
| Shareholder Report [Line Items] | ||||||||||||||||||||||||||
| Fund Name | Rockefeller Global Equity ETF | |||||||||||||||||||||||||
| Class Name | Rockefeller Global Equity ETF | |||||||||||||||||||||||||
| Trading Symbol | RGEF | |||||||||||||||||||||||||
| Security Exchange Name | NYSEArca | |||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This contains important information about the Rockefeller Global Equity ETF (the "Fund") for the period August 1, 2025 to July 31, 2026. | |||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at www.rockefelleretfs.com/rgef. You can also request this information by contacting us at (844) 992-1333 or by writing to Rockefeller Global Equity ETF, c/o U.S. Bank Global Fund Services, P.O. Box 701, Milwaukee, Wisconsin 53201-0701. | |||||||||||||||||||||||||
| Additional Information Phone Number | (844) 992-1333 | |||||||||||||||||||||||||
| Additional Information Website | www.rockefelleretfs.com/rgef | |||||||||||||||||||||||||
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment)
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| Expenses Paid, Amount | $ 62 | |||||||||||||||||||||||||
| Expense Ratio, Percent | 0.55% | |||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the period 8/1/25 through 7/31/26, the Fund returned 24.33% versus its benchmark which returned 22.11%, both on a 1-year annualized basis (Fund outperformed its benchmark by 2.22%). From a sector perspective, based on performance attribution to the overall portfolio relative to the MSCI ACWI Index, Information Technology and Financials were the leading contributors, while Communication Services and Industrials were the leading detractors. Reviewing individual stocks based on performance attribution to the overall portfolio relative to the MSCI ACWI Index, the top three leading contributors included Samsung Electronics, Advanced Micro Devices, and Applied Materials. Conversely, the three top leading detractors included Nintendo, Meta Platforms, and AutoZone. |
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| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is not a good indicator of how the Fund will perform in the future. | |||||||||||||||||||||||||
| Line Graph [Table Text Block] | Cumulative Performance (Initial Investment of $10,000) ![]() |
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| Average Annual Return [Table Text Block] | Annual Performance
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| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. | |||||||||||||||||||||||||
| Updated Performance Information Location [Text Block] | Visit www.rockefelleretfs.com/rgef for more recent performance information. | |||||||||||||||||||||||||
| Net Assets | $ 814,589,000 | |||||||||||||||||||||||||
| Holdings Count | Holdings | 68 | |||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 4,198,390 | |||||||||||||||||||||||||
| Investment Company, Portfolio Turnover | 13.00% | |||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of July 31, 2026)
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| Holdings [Text Block] | What did the Fund invest in? (as of July 31, 2026) Sector Breakdown (% of Total Net Assets) ![]()
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| Largest Holdings [Text Block] |
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| Rockefeller New York Municipal Bond ETF [Member] | ||||||||||||||||||||||||||
| Shareholder Report [Line Items] | ||||||||||||||||||||||||||
| Fund Name | Rockefeller New York Municipal Bond ETF | |||||||||||||||||||||||||
| Class Name | Rockefeller New York Municipal Bond ETF | |||||||||||||||||||||||||
| Trading Symbol | RMNY | |||||||||||||||||||||||||
| Security Exchange Name | NYSEArca | |||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This contains important information about the Rockefeller New York Municipal Bond ETF (the "Fund") for the period August 1, 2025 to July 31, 2026. | |||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at www.rockefelleretfs.com/rmny. You can also request this information by contacting us at (844) 992-1333 or by writing to Rockefeller New York Municipal Bond ETF, c/o U.S. Bank Global Fund Services, P.O. Box 701, Milwaukee, Wisconsin 53201-0701. | |||||||||||||||||||||||||
| Additional Information Phone Number | (844) 992-1333 | |||||||||||||||||||||||||
| Additional Information Website | www.rockefelleretfs.com/rmny | |||||||||||||||||||||||||
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment)
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| Expenses Paid, Amount | $ 57 | |||||||||||||||||||||||||
| Expense Ratio, Percent | 0.55% | |||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the period 8/1/25 through 7/31/26, the Fund returned 7.10%, outperforming its benchmark by 1.53%, on a 1-year annualized basis, primarily due to longer duration exposure and strong security selection. In addition to strong security selection, the fund benefited from municipal yields flattening during the period with 10-year yields higher by 12 bps, from 3.18% to 3.30%, while the 30-year bond tightened by 12 bps going from 4.57% to 4.46%. There was also significant outperformance attributable to muni/treasury ratio’s tightening from 95% to 85% over the period. As of month-end, the Fund’s twelve month distribution yield was 4.44%, and credit fundamentals remain strong across the municipal landscape. The Fund continues to pursue a bottom-up, credit-intensive strategy focused on yield-driven total return, recognizing that short-term volatility may occur, but yield is expected to drive long-term performance. |
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| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is not a good indicator of how the Fund will perform in the future. | |||||||||||||||||||||||||
| Line Graph [Table Text Block] | Cumulative Performance (Initial Investment of $10,000) ![]() |
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| Average Annual Return [Table Text Block] | Annual Performance
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| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. | |||||||||||||||||||||||||
| Updated Performance Information Location [Text Block] | Visit www.rockefelleretfs.com/rmny for more recent performance information. | |||||||||||||||||||||||||
| Net Assets | $ 27,879,000 | |||||||||||||||||||||||||
| Holdings Count | Holdings | 93 | |||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 115,789 | |||||||||||||||||||||||||
| Investment Company, Portfolio Turnover | 80.00% | |||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of July 31, 2026)
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| Largest Holdings [Text Block] | What did the Fund invest in? (as of July 31, 2026)
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| Rockefeller Opportunistic Municipal Bond ETF [Member] | ||||||||||||||||||||||||||
| Shareholder Report [Line Items] | ||||||||||||||||||||||||||
| Fund Name | Rockefeller Opportunistic Municipal Bond ETF | |||||||||||||||||||||||||
| Class Name | Rockefeller Opportunistic Municipal Bond ETF | |||||||||||||||||||||||||
| Trading Symbol | RMOP | |||||||||||||||||||||||||
| Security Exchange Name | NYSEArca | |||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This contains important information about the Rockefeller Opportunistic Municipal Bond ETF (the "Fund") for the period August 1, 2025 to July 31, 2026. | |||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at www.rockefelleretfs.com/rmop. You can also request this information by contacting us at (844) 992-1333 or by writing to Rockefeller Opportunistic Municipal Bond ETF, c/o U.S. Bank Global Fund Services, P.O. Box 701, Milwaukee, Wisconsin 53201-0701. | |||||||||||||||||||||||||
| Additional Information Phone Number | (844) 992-1333 | |||||||||||||||||||||||||
| Additional Information Website | www.rockefelleretfs.com/rmop | |||||||||||||||||||||||||
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment)
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| Expenses Paid, Amount | $ 58 | |||||||||||||||||||||||||
| Expense Ratio, Percent | 0.55% | |||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the period 8/1/25 through 7/31/26, the Fund returned 9.47%, outperforming its benchmark by 3.17%, on a 1-year annualized basis, due to longer duration exposure and strong security selection. In addition to strong security selection, the fund benefited from municipal yields flattening during the period with 10-year yields higher by 12 bps, from 3.18% to 3.30%, while the 30-year bond tightened by 12 bps going from 4.57% to 4.46%. There was also significant outperformance attributable to muni/treasury ratio’s tightening from 95% to 85% over the period. The market outlook remains constructive for municipals, especially high yield, with the Fund’s twelve month distribution yield at 5.30%. The Fund continues to pursue yield-driven total return using a bottom-up, credit-intensive approach, recognizing that short-term volatility may occur, but yield is expected to drive long-term performance. |
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| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is not a good indicator of how the Fund will perform in the future. | |||||||||||||||||||||||||
| Line Graph [Table Text Block] | Cumulative Performance (Initial Investment of $10,000) ![]() |
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| Average Annual Return [Table Text Block] | Annual Performance
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| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. | |||||||||||||||||||||||||
| Updated Performance Information Location [Text Block] | Visit www.rockefelleretfs.com/rmop for more recent performance information. | |||||||||||||||||||||||||
| Net Assets | $ 434,826,000 | |||||||||||||||||||||||||
| Holdings Count | Holdings | 342 | |||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 1,619,087 | |||||||||||||||||||||||||
| Investment Company, Portfolio Turnover | 84.00% | |||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of July 31, 2026)
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| Largest Holdings [Text Block] | What did the Fund invest in? (as of July 31, 2026)
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| Rockefeller U.S. Small-Mid Cap ETF [Member] | ||||||||||||||||||||||||||
| Shareholder Report [Line Items] | ||||||||||||||||||||||||||
| Fund Name | Rockefeller U.S. Small-Mid Cap ETF | |||||||||||||||||||||||||
| Class Name | Rockefeller U.S. Small-Mid Cap ETF | |||||||||||||||||||||||||
| Trading Symbol | RSMC | |||||||||||||||||||||||||
| Security Exchange Name | NYSEArca | |||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This contains important information about the Rockefeller U.S. Small-Mid Cap ETF (the "Fund") for the period August 1, 2025 to July 31, 2026. | |||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at www.rockefelleretfs.com/rsmc. You can also request this information by contacting us at (844) 992‑1333 or by writing to Rockefeller U.S. Small-Mid Cap ETF, c/o U.S. Bank Global Fund Services, P.O. Box 701, Milwaukee, Wisconsin 53201-0701. | |||||||||||||||||||||||||
| Additional Information Phone Number | (844) 992‑1333 | |||||||||||||||||||||||||
| Additional Information Website | www.rockefelleretfs.com/rsmc | |||||||||||||||||||||||||
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment)
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| Expenses Paid, Amount | $ 79 | |||||||||||||||||||||||||
| Expense Ratio, Percent | 0.75% | |||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the period 8/1/25 through 7/31/26, the Fund returned 9.60% versus its benchmark which returned 30.64%, both on a 1-year annualized basis (Fund underperformed its benchmark by 21.04%). From a sector perspective, based on performance attribution to the overall portfolio relative to the Russell 2500 Index, Industrials and Materials were the leading contributors, while Information Technology and Health Care were the leading detractors. Reviewing individual stocks based on performance attribution to the overall portfolio relative to the Russell 2500 Index, the top three leading contributors included StoneX Group, Sterling Infrastructure and DigitalOcean Holdings. Conversely, the three leading detractors included Badger Meter, Ollie’s Bargain Outlet, and StepStone Group. |
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| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is not a good indicator of how the Fund will perform in the future. | |||||||||||||||||||||||||
| Line Graph [Table Text Block] | Cumulative Performance (Initial Investment of $10,000) ![]() |
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| Average Annual Return [Table Text Block] | Annual Performance
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| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. | |||||||||||||||||||||||||
| Updated Performance Information Location [Text Block] | Visit www.rockefelleretfs.com/rsmc for more recent performance information. | |||||||||||||||||||||||||
| Net Assets | $ 761,563,000 | |||||||||||||||||||||||||
| Holdings Count | Holdings | 46 | |||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 5,524,417 | |||||||||||||||||||||||||
| Investment Company, Portfolio Turnover | 60.00% | |||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of July 31, 2026)
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| Holdings [Text Block] | What did the Fund invest in? (as of July 31, 2026) Sector Breakdown (% of Total Net Assets) ![]()
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| Largest Holdings [Text Block] |
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