Shareholder Report |
6 Months Ended | |||||||||||||||||||||
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Apr. 30, 2026
USD ($)
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| Shareholder Report [Line Items] | ||||||||||||||||||||||
| Document Type | N-CSRS | |||||||||||||||||||||
| Amendment Flag | false | |||||||||||||||||||||
| Registrant Name | ETF Opportunities Trust | |||||||||||||||||||||
| Entity Central Index Key | 0001771146 | |||||||||||||||||||||
| Entity Investment Company Type | N-1A | |||||||||||||||||||||
| Document Period End Date | Apr. 30, 2026 | |||||||||||||||||||||
| REX Crypto Equity Premium Income ETF [Member] | ||||||||||||||||||||||
| Shareholder Report [Line Items] | ||||||||||||||||||||||
| Fund Name | REX Crypto Equity Premium Income ETF | |||||||||||||||||||||
| Class Name | REX Crypto Equity Premium Income ETF | |||||||||||||||||||||
| Trading Symbol | CEPI | |||||||||||||||||||||
| Security Exchange Name | NASDAQ | |||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the REX Crypto Equity Premium Income ETF for the period of November 1, 2025 to April 30, 2026. | |||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at www.rexshares.com/cepi/. You can also request this information by contacting us at (844) 802-4004. | |||||||||||||||||||||
| Additional Information Phone Number | (844) 802-4004 | |||||||||||||||||||||
| Additional Information Website | www.rexshares.com/cepi/ | |||||||||||||||||||||
| Expenses [Text Block] | What were the Fund costs for the past six months? (based on a hypothetical $10,000 investment)
¹ Annualized. |
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| Expenses Paid, Amount | $ 42 | |||||||||||||||||||||
| Expense Ratio, Percent | 0.85% | [1] | ||||||||||||||||||||
| Net Assets | $ 93,816,679 | |||||||||||||||||||||
| Holdings Count | 87 | |||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 357,596 | |||||||||||||||||||||
| Investment Company, Portfolio Turnover | 27.61% | |||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of April 30, 2026)
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| Holdings [Text Block] | What did the Fund invest in? (% of Net Assets as of April 30, 2026) Sector Breakdown
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| Largest Holdings [Text Block] | Top Ten Holdings
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