| Form N-CSR Cover | 12 Months Ended |
| Oct. 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | Tidal Trust II |
| Entity Central Index Key | 0001924868 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Oct. 31, 2024 |
| Shareholder Report | 12 Months Ended | |
| Oct. 31, 2024 USD ($) Holdings | ||
| Shareholder Report [Line Items] | ||
| Document Type | N-CSR | |
| Amendment Flag | false | |
| Registrant Name | Tidal Trust II | |
| Entity Central Index Key | 0001924868 | |
| Entity Investment Company Type | N-1A | |
| Document Period End Date | Oct. 31, 2024 | |
| YieldMax AMD Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ AMD Option Income Strategy ETF | |
| Class Name | YieldMax™ AMD Option Income Strategy ETF | |
| Trading Symbol | AMDY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/AMDY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/AMDY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ AMD Option Income Strategy ETF $139 1.23% | |
| Expenses Paid, Amount | $ 139 | |
| Expense Ratio, Percent | 1.23% | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated positive total returns while paying out substantial monthly dividends. The underlying AMD’s positive performance led to the Fund’s ability to capture a portion of the upside. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying AMD consistently higher implied volatility throughout the year with some months higher than others. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. As the underlying AMD performed well, AMDY was able to capture a nice portion of that upside. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax AMD Option Income Strategy ETF S&P 500® Total Return Index 9/18/2023 10000 10000 9/30/2023 9931 9632 10/31/2023 9420 9430 11/30/2023 10998 10291 12/31/2023 12575 10758 1/31/2024 12720 10939 2/29/2024 14508 11523 3/31/2024 13622 11894 4/30/2024 12239 11408 5/31/2024 12827 11974 6/30/2024 13035 12403 7/31/2024 11507 12554 8/31/2024 11996 12859 9/30/2024 12987 13134 10/31/2024 11833 13014 | |
| Average Annual Return [Table Text Block] | Annual Performance Annualized Returns for the Periods Ended October 31, 2024 1 Year Since Inception ( 09/18/2023 YieldMax™ AMD Option Income Strategy ETF - at NAV 25.62% 16.25% S&P 500® Total Return Index 38.02% 26.58% | |
| Performance Inception Date | Sep. 18, 2023 | |
| 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.yieldmaxetfs.com/our-etfs/AMDY for more recent performance information. | |
| Net Assets | $ 121,221,000 | |
| Holdings Count | Holdings | 11 | |
| Advisory Fees Paid, Amount | $ 859,191 | |
| Investment Company, Portfolio Turnover | 37% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $121,221 Number of Holdings 11 Total Advisory Fee Paid $859,191 Annual Portfolio Turnover 37% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 1.057 Purchased Call Options 0.006 Cash & Cash Equivalents -0.063 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.005 Written Put Options -0.147 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 0.75%, 11/15/2024 33.4 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 24.2 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 24.1 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 24.0 First American Government Obligations Fund - Class X, 4.78% 4.5 Advanced Micro Devices, Inc., Expiration: 11/15/2024; Exercise Price: $165.00 0.4 Advanced Micro Devices, Inc., Expiration: 11/08/2024; Exercise Price: $165.00 0.2 Advanced Micro Devices, Inc., Expiration: 11/08/2024; Exercise Price: $160.00 0.0* Advanced Micro Devices, Inc., Expiration: 11/08/2024; Exercise Price: $150.00 (0.0)^ Advanced Micro Devices, Inc., Expiration: 11/08/2024; Exercise Price: $157.50 -0.5 * Less than 0.05% of net assets. ^ Less than -0.05% of net assets. | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax ABNB Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ ABNB Option Income Strategy ETF | |
| Class Name | YieldMax™ ABNB Option Income Strategy ETF | |
| Trading Symbol | ABNY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/ABNY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/ABNY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ ABNB Option Income Strategy ETF $36 1.06% The Fund commenced operations on June 24, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Expenses Paid, Amount | $ 36 | |
| Expense Ratio, Percent | 1.06% | |
| Expenses Short Period Footnote [Text Block] | The Fund commenced operations on June 24, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated negative total returns while paying out substantial monthly dividends. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. It is worth noting that the Fund was not live for the entire reporting period. What Factors Influenced Performance? The implied volatility of the underlying index plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying ABNY saw implied volatility differ across the months it has been live. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax ABNB Option Income Strategy ETF S&P 500® Total Return Index 6/24/2024 10000 10000 6/30/2024 10188 10025 7/31/2024 9744 10147 8/31/2024 8537 10393 9/30/2024 8809 10615 10/31/2024 9281 10518 | |
| Average Annual Return [Table Text Block] | Annual Performance Returns for the Period Ended October 31, 2024 Since Inception ( 06/24/2024 YieldMax™ ABNB Option Income Strategy ETF - at NAV -7.19% S&P 500® Total Return Index 5.18% | |
| Performance Inception Date | Jun. 24, 2024 | |
| 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.yieldmaxetfs.com/our-etfs/ABNY for more recent performance information. | |
| Net Assets | $ 16,743,000 | |
| Holdings Count | Holdings | 13 | |
| Advisory Fees Paid, Amount | $ 32,776 | |
| Investment Company, Portfolio Turnover | 46% | [1] |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $16,743 Number of Holdings 13 Total Advisory Fee Paid $32,776 Portfolio Turnover 46%* * Not annualized for periods less than one year. | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.807 Purchased Call Options 0.089 Cash & Cash Equivalents 0.104 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.009 Written Put Options -0.047 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and other assets in excess of liabilities. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 3.00%, 07/15/2025 23.9 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 22.1 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 18.0 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 16.7 Airbnb, Inc., Expiration: 12/20/2024; Exercise Price: $130.00 8.9 First American Government Obligations Fund - Class X, 4.78% 3.4 Airbnb, Inc., Expiration: 11/01/2024; Exercise Price: $141.00 0.0* Airbnb, Inc., Expiration: 11/08/2024; Exercise Price: $155.00 0.0* Airbnb, Inc., Expiration: 11/08/2024; Exercise Price: $152.50 0.0* Airbnb, Inc., Expiration: 11/08/2024; Exercise Price: $142.00 (0.0)^ * Less than 0.05% of net assets. ^ Less than -0.05% of net assets. | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no material changes during the reporting period. | |
| YieldMax AI Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ AI Option Income Strategy ETF | |
| Class Name | YieldMax™ AI Option Income Strategy ETF | |
| Trading Symbol | AIYY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/AIYY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/AIYY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ AI Option Income Strategy ETF $131 1.67% The Fund commenced operations on November 27, 2023. Expenses for a full reporting period would be higher than the figures shown. | |
| Expenses Paid, Amount | $ 131 | |
| Expense Ratio, Percent | 1.67% | |
| Expenses Short Period Footnote [Text Block] | The Fund commenced operations on November 27, 2023. Expenses for a full reporting period would be higher than the figures shown. | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated negative total returns primarily due to the negative performance of its underlying AI during the reporting period. Due to consistently higher implied volatility, it was still paying out substantial monthly dividends. It is worth noting that the Fund was not live for the entire reporting period. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying AI saw consistently higher volatility. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax AI Option Income Strategy ETF S&P 500® Total Return Index 11/27/2023 10000 10000 11/30/2023 9978 10043 12/31/2023 9874 10499 1/31/2024 9004 10676 2/29/2024 10683 11246 3/31/2024 8670 11608 4/30/2024 7545 11133 5/31/2024 8245 11685 6/30/2024 8023 12105 7/31/2024 7737 12252 8/31/2024 7140 12549 9/30/2024 7123 12817 10/31/2024 6938 12701 | |
| Average Annual Return [Table Text Block] | Annual Performance Returns for the Period Ended October 31, 2024 Since Inception ( 11/27/2023 YieldMax™ AI Option Income Strategy ETF - at NAV -30.62% S&P 500® Total Return Index 27.01% | |
| Performance Inception Date | Nov. 27, 2023 | |
| 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.yieldmaxetfs.com/our-etfs/AIYY for more recent performance information. | |
| Net Assets | $ 34,272,000 | |
| Holdings Count | Holdings | 11 | |
| Advisory Fees Paid, Amount | $ 244,540 | |
| Investment Company, Portfolio Turnover | 4% | [2] |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $34,272 Number of Holdings 11 Total Advisory Fee Paid $244,540 Portfolio Turnover 4%* * Not annualized for periods less than one year. | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.965 Purchased Call Options 0.046 Cash & Cash Equivalents -0.011 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.009 Written Put Options -0.057 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 3.00%, 07/15/2025 27.9 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 27.9 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 20.8 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 19.9 C3.ai, Inc., Expiration: 11/15/2024; Exercise Price: $25.00 4.4 First American Government Obligations Fund - Class X, 4.78% 1.0 C3.ai, Inc., Expiration: 11/08/2024; Exercise Price: $30.00 0.2 C3.ai, Inc., Expiration: 11/08/2024; Exercise Price: $29.00 0.0* C3.ai, Inc., Expiration: 11/08/2024; Exercise Price: $26.00 -0.1 C3.ai, Inc., Expiration: 11/08/2024; Exercise Price: $27.50 -0.8 * Less than 0.05% of net assets. | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax AMZN Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ AMZN Option Income Strategy ETF | |
| Class Name | YieldMax™ AMZN Option Income Strategy ETF | |
| Trading Symbol | AMZY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/AMZY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/AMZY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ AMZN Option Income Strategy ETF $136 1.17% | |
| Expenses Paid, Amount | $ 136 | |
| Expense Ratio, Percent | 1.17% | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated positive total returns while paying out substantial monthly dividends. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying AMZN implied volatility vary. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. As the underlying AMZN performed well, AMZY was able to capture a nice portion of that upside. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ AMZN Option Income Strategy ETF S&P 500® Total Return Index 7/24/2023 10000 10000 7/31/2023 10293 10078 8/31/2023 10841 9917 9/30/2023 10140 9444 10/31/2023 10794 9246 11/30/2023 11337 10090 12/31/2023 11833 10549 1/31/2024 11869 10726 2/29/2024 13564 11299 3/31/2024 14054 11662 4/30/2024 13731 11186 5/31/2024 14295 11740 6/30/2024 14778 12162 7/31/2024 14525 12310 8/31/2024 13924 12608 9/30/2024 14308 12878 10/31/2024 14303 12761 | |
| Average Annual Return [Table Text Block] | Annual Performance Annualized Returns for the Periods Ended October 31, 2024 1 Year Since Inception ( 07/24/2023 YieldMax™ AMZN Option Income Strategy ETF - at NAV 32.51% 32.52% S&P 500® Total Return Index 38.02% 21.14% | |
| Performance Inception Date | Jul. 24, 2023 | |
| 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.yieldmaxetfs.com/our-etfs/AMZY for more recent performance information. | |
| Net Assets | $ 178,930,000 | |
| Holdings Count | Holdings | 9 | |
| Advisory Fees Paid, Amount | $ 995,743 | |
| Investment Company, Portfolio Turnover | 27% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $178,930 Number of Holdings 9 Total Advisory Fee Paid $995,743 Annual Portfolio Turnover 27% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.99 Purchased Call Options 0.053 Cash & Cash Equivalents -0.043 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.015 Written Put Options -0.041 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 3.88%, 01/15/2026 28.1 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 27.6 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 26.8 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 16.5 Amazon.com, Inc., Expiration: 11/15/2024; Exercise Price: $185.00 5.0 First American Government Obligations Fund - Class X, 4.78% 0.6 Amazon.com, Inc., Expiration: 11/01/2024; Exercise Price: $207.50 0.3 Amazon.com, Inc., Expiration: 11/01/2024; Exercise Price: $195.00 -1.5 Amazon.com, Inc., Expiration: 11/15/2024; Exercise Price: $185.01 -4.1 | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax AAPL Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ AAPL Option Income Strategy ETF | |
| Class Name | YieldMax™ AAPL Option Income Strategy ETF | |
| Trading Symbol | APLY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/APLY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/APLY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ AAPL Option Income Strategy ETF $117 1.06% | |
| Expenses Paid, Amount | $ 117 | |
| Expense Ratio, Percent | 1.06% | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated positive total returns while paying out substantial monthly dividends. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying AAPL saw consistent implied volatility levels throughout the past year which led to more consistent dividend payouts. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. The Fund’s performance was positive over the year due to the underlying AAPL movement higher plus the additional time premiums captured. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ AAPL Option Income Strategy ETF S&P 500® Total Return Index 4/17/2023 10000 10000 4/30/2023 10251 10047 5/31/2023 10744 10090 6/30/2023 11559 10757 7/31/2023 11778 11103 8/31/2023 10952 10926 9/30/2023 10130 10405 10/31/2023 10188 10186 11/30/2023 11061 11117 12/31/2023 11264 11622 1/31/2024 10816 11817 2/29/2024 10820 12448 3/31/2024 10494 12848 4/30/2024 10417 12324 5/31/2024 11268 12935 6/30/2024 11840 13399 7/31/2024 12034 13562 8/31/2024 12408 13891 9/30/2024 12668 14187 10/31/2024 12342 14059 | |
| Average Annual Return [Table Text Block] | Annual Performance Annualized Returns for the Periods Ended October 31, 2024 1 Year Since Inception ( 04/17/2023 YieldMax™ AAPL Option Income Strategy ETF - at NAV 21.14% 14.65% S&P 500® Total Return Index 38.02% 24.76% | |
| Performance Inception Date | Apr. 17, 2023 | |
| 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.yieldmaxetfs.com/our-etfs/APLY for more recent performance information. | |
| Net Assets | $ 92,464,000 | |
| Holdings Count | Holdings | 9 | |
| Advisory Fees Paid, Amount | $ 657,628 | |
| Investment Company, Portfolio Turnover | 20% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $92,464 Number of Holdings 9 Total Advisory Fee Paid $657,628 Annual Portfolio Turnover 20% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.916 Purchased Call Options 0.045 Cash & Cash Equivalents 0.039 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.002 Written Put Options -0.036 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and other assets in excess of liabilities. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 0.75%, 11/15/2024 31.0 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 22.4 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 19.1 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 19.1 Apple, Inc., Expiration: 12/20/2024; Exercise Price: $225.00 4.5 First American Government Obligations Fund - Class X, 4.78% 1.0 Apple, Inc., Expiration: 11/01/2024; Exercise Price: $245.00 0.1 Apple, Inc., Expiration: 11/01/2024; Exercise Price: $237.50 -0.2 Apple, Inc., Expiration: 12/20/2024; Exercise Price: $225.01 -3.6 | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax(TM) BABA Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ BABA Option Income Strategy ETF | |
| Class Name | YieldMax™ BABA Option Income Strategy ETF | |
| Trading Symbol | BABO | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/BABO (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/BABO | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ BABA Option Income Strategy ETF $27 1.07% The Fund commenced operations on August 7, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Expenses Paid, Amount | $ 27 | |
| Expense Ratio, Percent | 1.07% | |
| Expenses Short Period Footnote [Text Block] | The Fund commenced operations on August 7, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated positive total returns while paying out substantial monthly dividends. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. It is worth noting that the Fund was not live for the entire reporting period. What Factors Influenced Performance? The implied volatility of the underlying index plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying BABA high implied volatility. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ BABA Option Income Strategy ETF S&P 500® Total Return Index 8/7/2024 10000 10000 8/31/2024 10230 10877 9/30/2024 12124 11109 10/31/2024 11500 11008 | |
| Average Annual Return [Table Text Block] | Annual Performance Returns for the Period Ended October 31, 2024 Since Inception ( 08/07/2024 YieldMax™ BABA Option Income Strategy ETF - at NAV 15.00% S&P 500® Total Return Index 10.08% | |
| Performance Inception Date | Aug. 07, 2024 | |
| 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.yieldmaxetfs.com/our-etfs/BABO for more recent performance information. | |
| Net Assets | $ 21,016,000 | |
| Holdings Count | Holdings | 11 | |
| Advisory Fees Paid, Amount | $ 23,702 | |
| Investment Company, Portfolio Turnover | 16% | [3] |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $21,016 Number of Holdings 11 Total Advisory Fee Paid $23,702 Portfolio Turnover 16%* * Not annualized for periods less than one year. | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.937 Purchased Call Options 0.009 Cash & Cash Equivalents 0.054 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.001 Written Put Options -0.130 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and other assets in excess of liabilities. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 2.63%, 04/15/2025 23.6 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 23.5 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 23.5 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 23.1 First American Government Obligations Fund - Class X, 4.78% 0.9 Alibaba Group Holding Ltd., Expiration: 11/15/2024; Exercise Price: $110.00 0.9 Alibaba Group Holding Ltd., Expiration: 11/01/2024; Exercise Price: $103.00 (0.0)* Alibaba Group Holding Ltd., Expiration: 11/01/2024; Exercise Price: $100.00 (0.0)* Alibaba Group Holding Ltd., Expiration: 11/08/2024; Exercise Price: $103.00 (0.0)* Alibaba Group Holding Ltd., Expiration: 11/01/2024; Exercise Price: $101.00 -0.1 * Less than -0.05% of net assets. | |
| Material Fund Change [Text Block] | How has the Fund changed? There were no material changes during the reporting period. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax COIN Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ COIN Option Income Strategy ETF | |
| Class Name | YieldMax™ COIN Option Income Strategy ETF | |
| Trading Symbol | CONY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/CONY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/CONY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ COIN Option Income Strategy ETF $160 1.22% | |
| Expenses Paid, Amount | $ 160 | |
| Expense Ratio, Percent | 1.22% | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated slightly positive total returns while paying out substantial monthly dividends. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying COIN saw consistently higher implied volatility with some periods higher than others. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. CONY was able to capture a portion of the upside moves in COIN. As the underlying COIN saw drawdowns mixed in, especially towards the end of the reporting period, CONY also had uneven returns where the additional premiums sold augmented the total return. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ COIN Option Income Strategy ETF S&P 500® Total Return Index 8/14/2023 10000 10000 8/31/2023 9937 10052 9/30/2023 9792 9573 10/31/2023 10469 9372 11/30/2023 13684 10228 12/31/2023 17790 10692 1/31/2024 14027 10872 2/29/2024 17722 11452 3/31/2024 23079 11821 4/30/2024 19380 11338 5/31/2024 21500 11900 6/30/2024 20675 12327 7/31/2024 20210 12477 8/31/2024 17786 12780 9/30/2024 17174 13053 10/31/2024 16998 12934 | |
| Average Annual Return [Table Text Block] | Annual Performance Annualized Returns for the Periods Ended October 31, 2024 1 Year Since Inception ( 08/14/2023 YieldMax™ COIN Option Income Strategy ETF - at NAV 62.36% 54.82% S&P 500® Total Return Index 38.02% 23.62% | |
| Performance Inception Date | Aug. 14, 2023 | |
| 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.yieldmaxetfs.com/our-etfs/CONY for more recent performance information. | |
| Net Assets | $ 655,235,000 | |
| Holdings Count | Holdings | 16 | |
| Advisory Fees Paid, Amount | $ 4,383,746 | |
| Investment Company, Portfolio Turnover | 27% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $655,235 Number of Holdings 16 Total Advisory Fee Paid $4,383,746 Annual Portfolio Turnover 27% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 1.096 Purchased Call Options 0.026 Cash & Cash Equivalents -0.122 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.013 Written Put Options -0.214 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 0.75%, 11/15/2024 17.2 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 30.6 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 30.6 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 31.2 Coinbase Global, Inc., Expiration: 11/15/2024; Exercise Price: $215.00 1.9 First American Government Obligations Fund - Class X, 4.78% 0.6 Coinbase Global, Inc., Expiration: 12/20/2024; Exercise Price: $190.00 0.3 Coinbase Global, Inc., Expiration: 11/08/2024; Exercise Price: $220.00 0.2 Coinbase Global, Inc., Expiration: 11/08/2024; Exercise Price: $235.00 0.1 Coinbase Global, Inc., Expiration: 11/08/2024; Exercise Price: $232.50 0.1 | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMaxTM Short TSLA Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ Short TSLA Option Income Strategy ETF | |
| Class Name | YieldMax™ Short TSLA Option Income Strategy ETF | |
| Trading Symbol | CRSH | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/CRSH (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/CRSH | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ Short TSLA Option Income Strategy ETF $51 1.13% The Fund commenced operations on May 1, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Expenses Paid, Amount | $ 51 | |
| Expense Ratio, Percent | 1.13% | |
| Expenses Short Period Footnote [Text Block] | The Fund commenced operations on May 1, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? CRSH is part of the inverse YieldMax™ lineup that looks to be positioned synthetically short the underlying TSLA security while selling covered puts and/or covered put spreads. The Fund benefits when TSLA share price decreases, generates extrinsic premiums via option selling available as a distribution to investors, and has upside risk of the underlying. During the reporting period, the Fund generated negative total returns while paying out substantial monthly dividends. Selling covered puts or covered put spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the downside capture. It is worth noting that CRSH was not live during the entire reporting period. What Factors Influenced Performance? When the underlying moves higher, it can create losses for this inverse ETF. The implied volatility of the underlying index plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying TSLA saw a lull in implied volatility but picked up the later portion of the year. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has upside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may give up a portion of the downside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ Short TSLA Option Income Strategy ETF S&P 500® Total Return Index 5/1/2024 10000 10000 5/31/2024 10218 10532 6/30/2024 9485 10910 7/31/2024 8245 11043 8/31/2024 9076 11311 9/30/2024 7856 11552 10/31/2024 7912 11447 | |
| Average Annual Return [Table Text Block] | Annual Performance Returns for the Period Ended October 31, 2024 Since Inception ( 05/01/2024 YieldMax™ Short TSLA Option Income Strategy ETF - at NAV -20.88% S&P 500® Total Return Index 14.47% | |
| Performance Inception Date | May 01, 2024 | |
| 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.yieldmaxetfs.com/our-etfs/CRSH for more recent performance information. | |
| Net Assets | $ 23,084,000 | |
| Holdings Count | Holdings | 14 | |
| Advisory Fees Paid, Amount | $ 50,016 | |
| Investment Company, Portfolio Turnover | 64% | [4] |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $23,084 Number of Holdings 14 Total Advisory Fee Paid $50,016 Portfolio Turnover 64%* * Not annualized for periods less than one year. | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.926 Purchased Call Options 0.003 Purchased Put Options 0.028 Cash & Cash Equivalents 0.043 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.149 Written Put Options -0.011 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 2.63%, 04/15/2025 24.9 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 24.1 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 24.1 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 19.5 First American Government Obligations Fund - Class X, 4.78% 9.2 Tesla, Inc., Expiration: 12/20/2024; Exercise Price: $220.00 2.6 Tesla, Inc., Expiration: 11/08/2024; Exercise Price: $225.00 0.1 Tesla, Inc., Expiration: 11/01/2024; Exercise Price: $247.50 0.1 Tesla, Inc., Expiration: 11/01/2024; Exercise Price: $235.00 0.0* Tesla, Inc., Expiration: 11/08/2024; Exercise Price: $245.00 -0.4 * Less than 0.05% of net assets. | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMaxTM Short NVDA Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ Short NVDA Option Income Strategy ETF | |
| Class Name | YieldMax™ Short NVDA Option Income Strategy ETF | |
| Trading Symbol | DIPS | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/DIPS (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/DIPS | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ Short NVDA Option Income Strategy ETF $25 0.99% The Fund commenced operations on July 23, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Expenses Paid, Amount | $ 25 | |
| Expense Ratio, Percent | 0.99% | |
| Expenses Short Period Footnote [Text Block] | The Fund commenced operations on July 23, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? DIPS is part of the inverse YieldMax™ lineup that looks to be positioned synthetically short the underlying NVDA security while selling covered puts and/or covered put spreads. The Fund benefits when NVDA’s share price decreases, generates extrinsic premiums via option selling available as a distribution to investors, and has upside risk of the underlying. During the reporting period, the Fund generated negative total returns primarily due to its underlying NVDA moving higher. At the same time, it paid out substantial monthly dividends. Selling covered puts or covered put spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the downside capture. It is worth noting that the Fund was not live for the entire reporting period. What Factors Influenced Performance? When the underlying moves higher, it can create losses for this inverse ETF. The implied volatility of the underlying index plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying TSLA saw a lull in implied volatility but picked up the later portion of the year. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has upside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may give up a portion of the downside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ Short NVDA Option Income Strategy ETF S&P 500® Total Return Index 7/23/2024 10000 10000 7/31/2024 10387 9942 8/31/2024 9889 10183 9/30/2024 9191 10400 10/31/2024 8417 10306 | |
| Average Annual Return [Table Text Block] | Annual Performance Returns for the Period Ended October 31, 2024 Since Inception ( 07/23/2024 YieldMax™ Short NVDA Option Income Strategy ETF - at NAV -15.83% S&P 500® Total Return Index 3.06% | |
| Performance Inception Date | Jul. 23, 2024 | |
| 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.yieldmaxetfs.com/our-etfs/DIPS for more recent performance information. | |
| Net Assets | $ 10,621,000 | |
| Holdings Count | Holdings | 10 | |
| Advisory Fees Paid, Amount | $ 17,335 | |
| Investment Company, Portfolio Turnover | 18% | [5] |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $10,621 Number of Holdings 10 Total Advisory Fee Paid $17,335 Portfolio Turnover 18%* * Not annualized for periods less than one year. | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 1.107 Purchased Call Options 0.002 Purchased Put Options 0.009 Cash & Cash Equivalents -0.118 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.18 Written Put Options -0.018 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 0.75%, 11/15/2024 27.7 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 27.7 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 27.7 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 27.6 First American Government Obligations Fund - Class X, 4.78% 1.9 NVIDIA Corp., Expiration: 11/08/2024; Exercise Price: $120.00 0.6 NVIDIA Corp., Expiration: 11/15/2024; Exercise Price: $107.00 0.3 NVIDIA Corp., Expiration: 11/15/2024; Exercise Price: $160.00 0.2 NVIDIA Corp., Expiration: 11/08/2024; Exercise Price: $128.00 -1.8 NVIDIA Corp., Expiration: 11/15/2024; Exercise Price: $107.02 -18.0 | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax DIS Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ DIS Option Income Strategy ETF | |
| Class Name | YieldMax™ DIS Option Income Strategy ETF | |
| Trading Symbol | DISO | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/DISO (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/DISO | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ DIS Option Income Strategy ETF $139 1.31% | |
| Expenses Paid, Amount | $ 139 | |
| Expense Ratio, Percent | 1.31% | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated positive total returns while paying out substantial monthly dividends. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying DIS uneven implied volatility. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. As the underlying DIS performed well later in the period, DISO was able to capture a portion of that upside. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ DIS Option Income ETF S&P 500® Total Return Index 8/24/2023 10000 10000 8/31/2023 10194 10306 9/30/2023 9864 9815 10/31/2023 10122 9608 11/30/2023 11029 10486 12/31/2023 10974 10962 1/31/2024 11604 11146 2/29/2024 12310 11741 3/31/2024 12978 12119 4/30/2024 12103 11624 5/31/2024 11549 12201 6/30/2024 11309 12638 7/31/2024 10793 12792 8/31/2024 10596 13102 9/30/2024 11124 13382 10/31/2024 11181 13261 | |
| Average Annual Return [Table Text Block] | Annual Performance Annualized Returns for the Periods Ended October 31, 2024 1 Year Since Inception ( 08/24/2023 YieldMax™ DIS Option Income Strategy ETF - at NAV 10.47% 9.87% S&P 500® Total Return Index 38.02% 26.86% | |
| Performance Inception Date | Aug. 24, 2023 | |
| 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.yieldmaxetfs.com/our-etfs/DISO for more recent performance information. | |
| Net Assets | $ 22,529,000 | |
| Holdings Count | Holdings | 10 | |
| Advisory Fees Paid, Amount | $ 137,608 | |
| Investment Company, Portfolio Turnover | 20% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $22,529 Number of Holdings 10 Total Advisory Fee Paid $137,608 Annual Portfolio Turnover 20% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.843 Purchased Call Options 0.091 Cash & Cash Equivalents 0.066 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.003 Written Put Options -0.026 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and other assets in excess of liabilities. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 2.63%, 04/15/2025 30.8 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 18.1 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 17.7 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 17.7 Walt Disney Co., Expiration: 12/20/2024; Exercise Price: $90.00 9.1 First American Government Obligations Fund - Class X, 4.78% 4.9 Walt Disney Co., Expiration: 11/01/2024; Exercise Price: $99.00 0.0* Walt Disney Co., Expiration: 11/08/2024; Exercise Price: $99.00 (0.0)^ Walt Disney Co., Expiration: 11/01/2024; Exercise Price: $97.00 -0.3 Walt Disney Co., Expiration: 12/20/2024; Exercise Price: $90.01 -2.6 * Less than 0.05% of net assets. ^ Less than -0.05% of net assets. | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax META Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ META Option Income Strategy ETF | |
| Class Name | YieldMax™ META Option Income Strategy ETF | |
| Trading Symbol | FBY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/FBY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/FBY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ META Option Income Strategy ETF $138 1.06% | |
| Expenses Paid, Amount | $ 138 | |
| Expense Ratio, Percent | 1.06% | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated very positive total returns while paying out substantial monthly dividends. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying FBY saw an implied volatility that picked up the later portion of the year. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. As the underlying META performed very well, FBY was able to capture a nice portion of that upside. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ META Option Income Strategy ETF S&P 500® Total Return Index 7/27/2023 10000 10000 7/31/2023 10163 10115 8/31/2023 9540 9954 9/30/2023 9911 9479 10/31/2023 10217 9280 11/30/2023 11016 10127 12/31/2023 11866 10588 1/31/2024 12538 10765 2/29/2024 14190 11340 3/31/2024 14300 11705 4/30/2024 12722 11227 5/31/2024 13458 11784 6/30/2024 14193 12207 7/31/2024 13280 12355 8/31/2024 14883 12655 9/30/2024 16110 12925 10/31/2024 16337 12808 | |
| Average Annual Return [Table Text Block] | Annual Performance Annualized Returns for the Periods Ended October 31, 2024 1 Year Since Inception ( 07/27/2023 YieldMax™ META Option Income Strategy ETF - at NAV 59.90% 47.50% S&P 500® Total Return Index 38.02% 21.65% | |
| Performance Inception Date | Jul. 27, 2023 | |
| 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.yieldmaxetfs.com/our-etfs/FBY for more recent performance information. | |
| Net Assets | $ 128,445,000 | |
| Holdings Count | Holdings | 10 | |
| Advisory Fees Paid, Amount | $ 615,382 | |
| Investment Company, Portfolio Turnover | 16% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $128,445 Number of Holdings 10 Total Advisory Fee Paid $615,382 Annual Portfolio Turnover 16% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.872 Purchased Call Options 0.064 Cash & Cash Equivalents 0.064 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.006 Written Put Options -0.036 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and other assets in excess of liabilities. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 0.75%, 11/15/2024 20.9 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 22.1 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 22.1 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 22.1 First American Government Obligations Fund - Class X, 4.78% 2.2 Meta Platforms, Inc., Expiration: 12/20/2024; Exercise Price: $555.00 6.3 Meta Platforms, Inc., Expiration: 11/08/2024; Exercise Price: $645.00 0.1 Meta Platforms, Inc., Expiration: 11/08/2024; Exercise Price: $592.50 -0.1 Meta Platforms, Inc., Expiration: 11/08/2024; Exercise Price: $600.00 -0.5 Meta Platforms, Inc., Expiration: 12/20/2024; Exercise Price: $555.01 -3.6 | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMaxTM Short COIN Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ Short COIN Option Income Strategy ETF | |
| Class Name | YieldMax™ Short COIN Option Income Strategy ETF | |
| Trading Symbol | FIAT | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/FIAT (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/FIAT | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ Short COIN Option Income Strategy ETF $33 1.00% The Fund commenced operations on July 9, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Expenses Paid, Amount | $ 33 | |
| Expense Ratio, Percent | 1% | |
| Expenses Short Period Footnote [Text Block] | The Fund commenced operations on July 9, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? FIAT is part of the inverse YieldMax™ lineup that looks to be positioned synthetically short the underlying COIN security while selling covered puts and/or covered put spreads. The Fund benefits when COIN’s share price decreases, generates extrinsic premiums via option selling available as a distribution to investors, and has upside risk of the underlying. During the reporting period, the Fund generated positive total returns while paying out substantial monthly dividends. It is worth noting that the Fund was not live for the entire reporting period. Selling covered puts or covered put spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the downside capture. What Factors Influenced Performance? When the underlying moves higher, it can create losses for this inverse ETF. The implied volatility of the underlying index plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying COIN saw a higher implied volatility in its limited history. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has upside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may give up a portion of the downside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ Short COIN Option Income Strategy ETF S&P 500® Total Return Index 7/9/2024 10000 10000 7/31/2024 9966 9908 8/31/2024 11640 10148 9/30/2024 11411 10365 10/31/2024 10961 10271 | |
| Average Annual Return [Table Text Block] | Annual Performance Returns for the Period Ended October 31, 2024 Since Inception ( 07/09/2024 YieldMax™ Short COIN Option Income Strategy ETF - at NAV 9.61% S&P 500® Total Return Index 2.71% | |
| Performance Inception Date | Jul. 09, 2024 | |
| 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.yieldmaxetfs.com/our-etfs/FIAT for more recent performance information. | |
| Net Assets | $ 40,037,000 | |
| Holdings Count | Holdings | 11 | |
| Advisory Fees Paid, Amount | $ 50,774 | |
| Investment Company, Portfolio Turnover | 38% | [6] |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $40,037 Number of Holdings 11 Total Advisory Fee Paid $50,774 Portfolio Turnover 38%* * Not annualized for periods less than one year. | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 1.089 Purchased Put Options 0.204 Purchased Call Options 0.005 Cash & Cash Equivalents -0.298 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.018 Written Put Options -0.079 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 0.75%, 11/15/2024 27.3 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 27.3 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 27.2 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 27.1 Coinbase Global, Inc., Expiration: 11/01/2024; Exercise Price: $215.50 19.7 Coinbase Global, Inc., Expiration: 11/01/2024; Exercise Price: $172.50 0.7 Coinbase Global, Inc., Expiration: 12/20/2024; Exercise Price: $330.00 0.5 First American Government Obligations Fund - Class X, 4.78% 0.3 Coinbase Global, Inc., Expiration: 11/01/2024; Exercise Price: $187.50 -0.4 Coinbase Global, Inc., Expiration: 11/15/2024; Exercise Price: $215.02 -1.8 This is a summary of certain changes to the Fund. For more complete information, you may review the Fund’s Prospectus. | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax Gold Miners Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ Gold Miners Option Income Strategy ETF | |
| Class Name | YieldMax™ Gold Miners Option Income Strategy ETF | |
| Trading Symbol | GDXY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/GDXY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/GDXY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ Gold Miners Option Income Strategy ETF $49 1.08% The Fund commenced operations on May 20, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Expenses Paid, Amount | $ 49 | |
| Expense Ratio, Percent | 1.08% | |
| Expenses Short Period Footnote [Text Block] | The Fund commenced operations on May 20, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated flat total returns while paying out high monthly dividends. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. It is worth noting that the Fund was not live for the entire reporting period. What Factors Influenced Performance? The underlying GDX also had relatively flat performance since inception. The implied volatility of the underlying index plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying GDX saw a generally lower implied volatility. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ Gold Miners Option Income Strategy ETF S&P 500® Total Return Index 5/20/2024 10000 10000 5/31/2024 9538 9945 6/30/2024 9440 10302 7/31/2024 9864 10428 8/31/2024 9987 10681 9/30/2024 10155 10909 10/31/2024 9934 10810 | |
| Average Annual Return [Table Text Block] | Annual Performance Returns for the Period Ended October 31, 2024 Since Inception ( 05/20/2024 YieldMax™ Gold Miners Option Income Strategy ETF - at NAV -0.66% S&P 500® Total Return Index 8.10% | |
| Performance Inception Date | May 20, 2024 | |
| 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.yieldmaxetfs.com/our-etfs/GDXY for more recent performance information. | |
| Net Assets | $ 31,417,000 | |
| Holdings Count | Holdings | 9 | |
| Advisory Fees Paid, Amount | $ 86,898 | |
| Investment Company, Portfolio Turnover | 14% | [7] |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $31,417 Number of Holdings 9 Total Advisory Fee Paid $86,898 Portfolio Turnover 14%* * Not annualized for periods less than one year. | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.921 Purchased Call Options 0.046 Cash & Cash Equivalents 0.033 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.02 Written Put Options -0.027 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and other assets in excess of liabilities. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 0.75%, 11/15/2024 23.1 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 23.1 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 23.0 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 22.9 Vaneck Gold Miners ETF, Expiration: 11/15/2024; Exercise Price: $40.00 3.7 First American Government Obligations Fund - Class X, 4.78% 1.0 Vaneck Gold Miners ETF, Expiration: 11/08/2024; Exercise Price: $42.50 0.9 Vaneck Gold Miners ETF, Expiration: 11/08/2024; Exercise Price: $41.00 -2.0 Vaneck Gold Miners ETF, Expiration: 11/15/2024; Exercise Price: $40.01 -2.7 | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax GOOGL Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ GOOGL Option Income Strategy ETF | |
| Class Name | YieldMax™ GOOGL Option Income Strategy ETF | |
| Trading Symbol | GOOY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/GOOY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/GOOY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ GOOGL Option Income Strategy ETF $126 1.20% | |
| Expenses Paid, Amount | $ 126 | |
| Expense Ratio, Percent | 1.20% | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated positive total returns while paying out substantial monthly dividends. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying GOOGL saw even implied volatility levels with some months moving higher. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. As the underlying GOOGL performed was positive, GOOY was able to capture a portion of that upside. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ GOOGL Option Income Strategy ETF S&P 500® Total Return Index 7/27/2023 10000 10000 7/31/2023 10241 10115 8/31/2023 10421 9954 9/30/2023 10058 9479 10/31/2023 9650 9280 11/30/2023 9709 10127 12/31/2023 9854 10588 1/31/2024 9560 10765 2/29/2024 9264 11340 3/31/2024 9765 11705 4/30/2024 10285 11227 5/31/2024 10868 11784 6/30/2024 11485 12207 7/31/2024 10650 12355 8/31/2024 10416 12655 9/30/2024 10477 12925 10/31/2024 10597 12808 | |
| Average Annual Return [Table Text Block] | Annual Performance Annualized Returns for the Periods Ended October 31, 2024 1 Year Since Inception ( 07/27/2023 YieldMax™ GOOGL Option Income Strategy ETF - at NAV 9.81% 4.69% S&P 500® Total Return Index 38.02% 21.65% | |
| Performance Inception Date | Jul. 27, 2023 | |
| 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.yieldmaxetfs.com/our-etfs/GOOY for more recent performance information. | |
| Net Assets | $ 70,952,000 | |
| Holdings Count | Holdings | 9 | |
| Advisory Fees Paid, Amount | $ 389,925 | |
| Investment Company, Portfolio Turnover | 359% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $70,952 Number of Holdings 9 Total Advisory Fee Paid $389,925 Annual Portfolio Turnover 359% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.906 Purchased Call Options 0.07 Cash & Cash Equivalents 0.024 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.001 Written Put Options -0.024 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 3.00%, 07/15/2025 25.0 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 24.6 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 24.1 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 16.9 Alphabet, Inc., Expiration: 12/20/2024; Exercise Price: $165.00 6.9 First American Government Obligations Fund - Class X, 4.78% 4.0 Alphabet, Inc., Expiration: 11/08/2024; Exercise Price: $195.00 0.1 Alphabet, Inc., Expiration: 11/08/2024; Exercise Price: $185.00 -0.1 Alphabet, Inc., Expiration: 12/20/2024; Exercise Price: $165.01 -2.4 | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax JPM Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ JPM Option Income Strategy ETF | |
| Class Name | YieldMax™ JPM Option Income Strategy ETF | |
| Trading Symbol | JPMO | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/JPMO (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/JPMO | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ JPM Option Income Strategy ETF $131 1.18% | |
| Expenses Paid, Amount | $ 131 | |
| Expense Ratio, Percent | 1.18% | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated positive total returns while paying out substantial monthly dividends. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying JPM saw implied volatility vary with some higher spikes but more muted within the financial sector. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. As the underlying JPM performed was positive, JPMO was able to capture a portion of that upside. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ JPM Option Income Strategy ETF S&P 500® Total Return Index 9/11/2023 10000 10000 9/30/2023 10044 9563 10/31/2023 9542 9362 11/30/2023 10021 10217 12/31/2023 10546 10681 1/31/2024 10818 10860 2/29/2024 11426 11440 3/31/2024 12037 11808 4/30/2024 11314 11326 5/31/2024 11602 11888 6/30/2024 11599 12314 7/31/2024 11673 12464 8/31/2024 11953 12767 9/30/2024 11351 13039 10/31/2024 11675 12921 | |
| Average Annual Return [Table Text Block] | Annual Performance Annualized Returns for the Periods Ended October 31, 2024 1 Year Since Inception ( 09/11/2023 YieldMax™ JPM Option Income Strategy ETF - at NAV 22.35% 14.60% S&P 500® Total Return Index 38.02% 25.28% | |
| Performance Inception Date | Sep. 11, 2023 | |
| 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.yieldmaxetfs.com/our-etfs/JPMO for more recent performance information. | |
| Net Assets | $ 26,428,000 | |
| Holdings Count | Holdings | 9 | |
| Advisory Fees Paid, Amount | $ 148,388 | |
| Investment Company, Portfolio Turnover | 11% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $26,428 Number of Holdings 9 Total Advisory Fee Paid $148,388 Annual Portfolio Turnover 11% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.941 Purchased Call Options 0.033 Cash & Cash Equivalents 0.026 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.001 Written Put Options -0.04 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and other assets in excess of liabilities. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 0.75%, 11/15/2024 25.1 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 23.8 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 22.6 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 22.6 First American Government Obligations Fund - Class X, 4.78% 1.5 JPMorgan Chase & Co., Expiration: 12/20/2024; Exercise Price: $225.00 3.3 JPMorgan Chase & Co., Expiration: 11/08/2024; Exercise Price: $230.00 (0.0)* JPMorgan Chase & Co., Expiration: 11/01/2024; Exercise Price: $225.00 -0.1 JPMorgan Chase & Co., Expiration: 12/20/2024; Exercise Price: $225.01 -4.0 * Less than -0.05% of net assets. | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax MRNA Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ MRNA Option Income Strategy ETF | |
| Class Name | YieldMax™ MRNA Option Income Strategy ETF | |
| Trading Symbol | MRNY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/MRNY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/MRNY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ MRNA Option Income Strategy ETF $103 1.26% | |
| Expenses Paid, Amount | $ 103 | |
| Expense Ratio, Percent | 1.26% | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated negative total returns primarily due to the negative performance of its underlying asset MRNA. It still paid out substantial monthly dividends due to capturing higher volatility. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying MRNA saw higher implied volatility that was consistent throughout the reporting period. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ MRNA Option Income Strategy ETF S&P 500® Total Return Index 10/23/2023 10000 10000 10/31/2023 9675 9947 11/30/2023 9572 10855 12/31/2023 12030 11349 1/31/2024 11942 11539 2/29/2024 11480 12156 3/31/2024 13036 12547 4/30/2024 13509 12034 5/31/2024 12809 12631 6/30/2024 10966 13084 7/31/2024 11319 13243 8/31/2024 7921 13565 9/30/2024 7090 13854 10/31/2024 6121 13729 | |
| Average Annual Return [Table Text Block] | Annual Performance Annualized Returns for the Periods Ended October 31, 2024 1 Year Since Inception ( 10/23/2023 YieldMax™ MRNA Option Income Strategy ETF - at NAV -36.73% -38.14% S&P 500® Total Return Index 38.02% 36.36% | |
| Performance Inception Date | Oct. 23, 2023 | |
| 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.yieldmaxetfs.com/our-etfs/MRNY for more recent performance information. | |
| Net Assets | $ 28,841,000 | |
| Holdings Count | Holdings | 11 | |
| Advisory Fees Paid, Amount | $ 199,582 | |
| Investment Company, Portfolio Turnover | 27% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $28,841 Number of Holdings 11 Total Advisory Fee Paid $199,582 Annual Portfolio Turnover 27% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.915 Purchased Call Options 0.091 Cash & Cash Equivalents -0.006 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.008 Written Put Options -0.082 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 3.00%, 07/15/2025 26.1 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 26.0 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 22.4 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 17.0 Moderna, Inc., Expiration: 11/15/2024; Exercise Price: $54.00 9.1 First American Government Obligations Fund - Class X, 4.78% 4.1 Moderna, Inc., Expiration: 11/01/2024; Exercise Price: $59.00 0.0* Moderna, Inc., Expiration: 11/01/2024; Exercise Price: $60.00 0.0* Moderna, Inc., Expiration: 11/01/2024; Exercise Price: $55.00 -0.7 Moderna, Inc., Expiration: 11/08/2024; Exercise Price: $61.00 -0.1 * Less than 0.05% of net assets. | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax MSFT Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ MSFT Option Income Strategy ETF | |
| Class Name | YieldMax™ MSFT Option Income Strategy ETF | |
| Trading Symbol | MSFO | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/MSFO (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/MSFO | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ MSFT Option Income Strategy ETF $117 1.07% | |
| Expenses Paid, Amount | $ 117 | |
| Expense Ratio, Percent | 1.07% | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated positive total returns while paying out substantial monthly dividends. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying MSFT saw implied volatility start off higher before settling down later. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. As the underlying MSFT performed well, MSFO was able to capture a portion of that upside. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ MSFT Option Income Strategy ETF S&P 500® Total Return Index 8/24/2023 10000 10000 8/31/2023 10234 10306 9/30/2023 9996 9815 10/31/2023 10813 9608 11/30/2023 11729 10486 12/31/2023 11894 10962 1/31/2024 12408 11146 2/29/2024 12836 11741 3/31/2024 13153 12119 4/30/2024 12450 11624 5/31/2024 13235 12201 6/30/2024 14038 12638 7/31/2024 13032 12792 8/31/2024 13155 13102 9/30/2024 13422 13382 10/31/2024 12839 13261 | |
| Average Annual Return [Table Text Block] | Annual Performance Annualized Returns for the Periods Ended October 31, 2024 1 Year Since Inception ( 08/24/2023 YieldMax™ MSFT Option Income Strategy ETF - at NAV 18.73% 23.45% S&P 500® Total Return Index 38.02% 26.86% | |
| Performance Inception Date | Aug. 24, 2023 | |
| 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.yieldmaxetfs.com/our-etfs/MSFO for more recent performance information. | |
| Net Assets | $ 80,849,000 | |
| Holdings Count | Holdings | 11 | |
| Advisory Fees Paid, Amount | $ 498,418 | |
| Investment Company, Portfolio Turnover | 21% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $80,849 Number of Holdings 11 Total Advisory Fee Paid $498,418 Annual Portfolio Turnover 21% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 1.024 Purchased Call Options 0.005 Cash & Cash Equivalents -0.029 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.003 Written Put Options -0.06 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 2.63%, 04/15/2025 27.3 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 27.1 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 27.1 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 20.9 First American Government Obligations Fund - Class X, 4.78% 0.9 Microsoft Corp., Expiration: 11/15/2024; Exercise Price: $430.00 0.4 Microsoft Corp., Expiration: 11/08/2024; Exercise Price: $437.50 0.1 Microsoft Corp., Expiration: 11/01/2024; Exercise Price: $465.00 0.0* Microsoft Corp., Expiration: 11/01/2024; Exercise Price: $452.50 0.0* Microsoft Corp., Expiration: 11/08/2024; Exercise Price: $422.50 -0.3 * Less than 0.05% of net assets. | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax MSTR Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ MSTR Option Income Strategy ETF | |
| Class Name | YieldMax™ MSTR Option Income Strategy ETF | |
| Trading Symbol | MSTY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/MSTY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/MSTY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ MSTR Option Income Strategy ETF $133 0.99% The Fund commenced operations on February 21, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Expenses Paid, Amount | $ 133 | |
| Expense Ratio, Percent | 0.99% | |
| Expenses Short Period Footnote [Text Block] | The Fund commenced operations on February 21, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated high positive total returns while paying out substantial monthly dividends. The underlying MSTR’s positive performance led to the Fund’s ability to capture a portion of the upside. At the same time, the high implied volatility led to significant option premiums available for sale. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. It is worth noting that the Fund was not live for the entire reporting period. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying MSTY saw large, implied volatility consistently throughout the year. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ MSTR Option Income Strategy ETF S&P 500® Total Return Index 2/21/2024 10000 10000 2/29/2024 12557 10234 3/31/2024 21324 10564 4/30/2024 15476 10132 5/31/2024 19532 10634 6/30/2024 18606 11016 7/31/2024 21175 11150 8/31/2024 18224 11421 9/30/2024 21600 11664 10/31/2024 28830 11559 | |
| Average Annual Return [Table Text Block] | Annual Performance Returns for the Period Ended October 31, 2024 Since Inception ( 02/21/2024 YieldMax™ MSTR Option Income Strategy ETF - at NAV 188.30% S&P 500® Total Return Index 15.59% | |
| Performance Inception Date | Feb. 21, 2024 | |
| 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.yieldmaxetfs.com/our-etfs/MSTY for more recent performance information. | |
| Net Assets | $ 813,067,000 | |
| Holdings Count | Holdings | 9 | |
| Advisory Fees Paid, Amount | $ 2,012,519 | |
| Investment Company, Portfolio Turnover | 0% | [8] |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $813,067 Number of Holdings 9 Total Advisory Fee Paid $2,012,519 Portfolio Turnover 0%* * Not annualized for periods less than one year. | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.011 Purchased Call Options 0.072 Cash & Cash Equivalents 0.917 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.006 Written Put Options -0.11 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and other assets in excess of liabilities. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) MicroStrategy, Inc., Expiration: 11/15/2024; Exercise Price: $255.00 7.2 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 1.1 MicroStrategy, Inc., Expiration: 11/01/2024; Exercise Price: $290.00 0.0* First American Government Obligations Fund - Class X, 4.78% 0.0* MicroStrategy, Inc., Expiration: 11/01/2024; Exercise Price: $295.00 0.0* MicroStrategy, Inc., Expiration: 11/01/2024; Exercise Price: $250.00 (0.0)^ MicroStrategy, Inc., Expiration: 11/01/2024; Exercise Price: $260.00 -0.2 MicroStrategy, Inc., Expiration: 11/01/2024; Exercise Price: $255.00 -0.4 MicroStrategy, Inc., Expiration: 11/15/2024; Exercise Price: $255.01 -11.0 * Less than 0.05% of net assets. ^ Less than -0.05% of net assets. | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax NFLX Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ NFLX Option Income Strategy ETF | |
| Class Name | YieldMax™ NFLX Option Income Strategy ETF | |
| Trading Symbol | NFLY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/NFLY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/NFLY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ NFLX Option Income Strategy ETF $138 1.05% | |
| Expenses Paid, Amount | $ 138 | |
| Expense Ratio, Percent | 1.05% | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated very positive total returns while paying out substantial monthly dividends. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying NFLX implied volatility started out strong over the year, settled back lower, then moved back up towards the end of the year. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. As the underlying NFLX performed exceptionally well, NFLY was able to capture a nice portion of that upside. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ NFLX Option Income Strategy ETF S&P 500® Total Return Index 8/7/2023 10000 10000 8/31/2023 9921 9993 9/30/2023 8478 9516 10/31/2023 9401 9316 11/30/2023 10133 10167 12/31/2023 10261 10629 1/31/2024 11379 10807 2/29/2024 12025 11384 3/31/2024 12249 11751 4/30/2024 11490 11271 5/31/2024 12590 11830 6/30/2024 13212 12254 7/31/2024 12741 12403 8/31/2024 13710 12704 9/30/2024 14102 12975 10/31/2024 15363 12858 | |
| Average Annual Return [Table Text Block] | Annual Performance Annualized Returns for the Periods Ended October 31, 2024 1 Year Since Inception ( 08/07/2023 YieldMax™ NFLX Option Income Strategy ETF - at NAV 63.43% 41.66% S&P 500® Total Return Index 38.02% 22.62% | |
| Performance Inception Date | Aug. 07, 2023 | |
| 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.yieldmaxetfs.com/our-etfs/NFLY for more recent performance information. | |
| Net Assets | $ 51,465,000 | |
| Holdings Count | Holdings | 8 | |
| Advisory Fees Paid, Amount | $ 387,804 | |
| Investment Company, Portfolio Turnover | 51% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $51,465 Number of Holdings 8 Total Advisory Fee Paid $387,804 Annual Portfolio Turnover 51% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.973 Purchased Call Options 0.046 Cash & Cash Equivalents -0.019 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.001 Written Put Options -0.036 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 0.75%, 11/15/2024 32.4 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 23.9 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 20.5 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 20.5 Netflix, Inc., Expiration: 12/20/2024; Exercise Price: $755.00 4.6 First American Government Obligations Fund - Class X, 4.78% 0.9 Netflix, Inc., Expiration: 11/01/2024; Exercise Price: $770.00 -0.1 Netflix, Inc., Expiration: 12/20/2024; Exercise Price: $755.01 -3.6 | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax NVDA Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ NVDA Option Income Strategy ETF | |
| Class Name | YieldMax™ NVDA Option Income Strategy ETF | |
| Trading Symbol | NVDY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/NVDY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/NVDY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ NVDA Option Income Strategy ETF $219 1.27% | |
| Expenses Paid, Amount | $ 219 | |
| Expense Ratio, Percent | 1.27% | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated very high positive total returns while paying out substantial monthly dividends riding the upward momentum of the underlying NVDA. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying NVDA saw its implied volatility consistently on the higher end of other S&P 500® stocks. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. As the underlying NVDA performed exceptionally well, NVDY was able to capture a nice portion of that upside. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ NVDA Option Income Strategy ETF S&P 500® Total Return Index 5/10/2023 10000 10000 5/31/2023 11432 10118 6/30/2023 12183 10786 7/31/2023 12857 11133 8/31/2023 13845 10955 9/30/2023 12734 10433 10/31/2023 12188 10214 11/30/2023 13185 11147 12/31/2023 14110 11653 1/31/2024 15965 11849 2/29/2024 19899 12481 3/31/2024 21887 12883 4/30/2024 20931 12357 5/31/2024 24456 12970 6/30/2024 27383 13435 7/31/2024 27066 13598 8/31/2024 27300 13928 9/30/2024 27486 14226 10/31/2024 29823 14097 | |
| Average Annual Return [Table Text Block] | Annual Performance Annualized Returns for the Periods Ended October 31, 2024 1 Year Since Inception ( 05/10/2023 YieldMax™ NVDA Option Income Strategy ETF - at NAV 144.70% 109.58% S&P 500® Total Return Index 38.02% 26.18% | |
| Performance Inception Date | May 10, 2023 | |
| 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.yieldmaxetfs.com/our-etfs/NVDY for more recent performance information. | |
| Net Assets | $ 1,244,788,000 | |
| Holdings Count | Holdings | 11 | |
| Advisory Fees Paid, Amount | $ 5,370,370 | |
| Investment Company, Portfolio Turnover | 23% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $1,244,788 Number of Holdings 11 Total Advisory Fee Paid $5,370,370 Annual Portfolio Turnover 23% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.918 Purchased Call Options 0.104 Cash & Cash Equivalents -0.022 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.013 Written Put Options -0.07 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 3.88%, 01/15/2026 27.2 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 26.8 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 26.4 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 11.4 NVIDIA Corp., Expiration: 12/20/2024; Exercise Price: $130.00 10.0 First American Government Obligations Fund - Class X, 4.78% 1.5 NVIDIA Corp., Expiration: 11/08/2024; Exercise Price: $147.00 0.4 NVIDIA Corp., Expiration: 11/08/2024; Exercise Price: $149.00 0.0* NVIDIA Corp., Expiration: 11/08/2024; Exercise Price: $139.00 -0.1 NVIDIA Corp., Expiration: 11/08/2024; Exercise Price: $140.00 -1.2 * Less than 0.05% of net assets. | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax Innovation Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ Innovation Option Income Strategy ETF | |
| Class Name | YieldMax™ Innovation Option Income Strategy ETF | |
| Trading Symbol | OARK | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/OARK (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/OARK | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ Innovation Option Income Strategy ETF $110 1.00% | |
| Expenses Paid, Amount | $ 110 | |
| Expense Ratio, Percent | 1% | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated positive total returns while paying out substantial monthly dividends. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying ARKK saw a reduction in implied volatility but picked up in the later portion of the year. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ Innovation Option Income Strategy ETF S&P 500® Total Return Index 11/22/2022 10000 10000 11/30/2022 10251 10196 12/31/2022 9082 9608 1/31/2023 9989 10212 2/28/2023 9375 9963 3/31/2023 9551 10329 4/30/2023 8782 10490 5/31/2023 9908 10535 6/30/2023 10616 11231 7/31/2023 11437 11592 8/31/2023 10108 11408 9/30/2023 9476 10864 10/31/2023 8624 10635 11/30/2023 9450 11607 12/31/2023 10912 12134 1/31/2024 9845 12338 2/29/2024 10721 12997 3/31/2024 10946 13415 4/30/2024 9866 12867 5/31/2024 9692 13505 6/30/2024 9964 13990 7/31/2024 10288 14160 8/31/2024 10039 14503 9/30/2024 10630 14813 10/31/2024 10422 14679 | |
| Average Annual Return [Table Text Block] | Annual Performance Annualized Returns for the Periods Ended October 31, 2024 1 Year Since Inception ( 11/22/2022 YieldMax™ Innovation Option Income Strategy ETF - at NAV 20.85% 2.15% S&P 500® Total Return Index 38.02% 21.88% | |
| Performance Inception Date | Nov. 22, 2022 | |
| 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.yieldmaxetfs.com/our-etfs/OARK for more recent performance information. | |
| Net Assets | $ 54,444,000 | |
| Holdings Count | Holdings | 9 | |
| Advisory Fees Paid, Amount | $ 660,200 | |
| Investment Company, Portfolio Turnover | 64% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $54,444 Number of Holdings 9 Total Advisory Fee Paid $660,200 Annual Portfolio Turnover 64% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.948 Purchased Call Options 0.07 Cash & Cash Equivalents -0.018 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.004 Written Put Options -0.046 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 0.75%, 11/15/2024 27.8 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 22.4 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 22.3 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 22.3 ARK Innovation ETF, Expiration: 12/20/2024; Exercise Price: $45.00 6.9 First American Government Obligations Fund - Class X, 4.78% 2.8 ARK Innovation ETF, Expiration: 11/08/2024; Exercise Price: $53.00 0.1 ARK Innovation ETF, Expiration: 11/08/2024; Exercise Price: $50.00 -0.4 ARK Innovation ETF, Expiration: 12/20/2024; Exercise Price: $45.01 -4.6 | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax(TM) PLTR Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ PLTR Option Income Strategy ETF | |
| Class Name | YieldMax™ PLTR Option Income Strategy ETF | |
| Trading Symbol | PLTY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/PLTY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/PLTY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ PLTR Option Income Strategy ETF $10 1.44% The Fund commenced operations on October 7, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Expenses Paid, Amount | $ 10 | |
| Expense Ratio, Percent | 1.44% | |
| Expenses Short Period Footnote [Text Block] | The Fund commenced operations on October 7, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated positive total returns. The positive movement in its underlying PLTR allowed it to capture some upside. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. It is worth noting that the Fund was not live for the entire reporting period. What Factors Influenced Performance? The implied volatility of the underlying index plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying PLTR saw higher implied volatility. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ PLTR Option Income Strategy ETF S&P 500® Total Return Index 10/7/24 10000 10000 10/31/24 9857 10022 | |
| Average Annual Return [Table Text Block] | Annual Performance Returns for the Period Ended October 31, 2024 Since Inception ( 10/07/2024 YieldMax™ PLTR Option Income Strategy ETF - at NAV -1.43% S&P 500® Total Return Index 0.22% | |
| Performance Inception Date | Oct. 07, 2024 | |
| 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.yieldmaxetfs.com/our-etfs/PLTY for more recent performance information. | |
| Net Assets | $ 6,161,000 | |
| Holdings Count | Holdings | 9 | |
| Advisory Fees Paid, Amount | $ 2,343 | |
| Investment Company, Portfolio Turnover | 0% | [9] |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $6,161 Number of Holdings 9 Total Advisory Fee Paid $2,343 Portfolio Turnover 0%* * Not annualized for periods less than one year. | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.723 Purchased Call Options 0.159 Cash & Cash Equivalents 0.118 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.049 Written Put Options -0.063 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and other assets in excess of liabilities. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 0.75%, 11/15/2024 18.1 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 18.1 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 18.1 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 18.0 Palantir Technologies, Inc., Expiration: 12/20/2024; Exercise Price: $39.00 13.4 Palantir Technologies, Inc., Expiration: 11/08/2024; Exercise Price: $47.00 2.5 First American Government Obligations Fund - Class X, 4.78% 0.8 Palantir Technologies, Inc., Expiration: 11/08/2024; Exercise Price: $43.50 -4.9 Palantir Technologies, Inc., Expiration: 12/20/2024; Exercise Price: $39.01 -6.3 | |
| Material Fund Change [Text Block] | How has the Fund changed? There were no material changes during the reporting period. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax PYPL Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ PYPL Option Income Strategy ETF | |
| Class Name | YieldMax™ PYPL Option Income Strategy ETF | |
| Trading Symbol | PYPY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/PYPY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/PYPY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ PYPL Option Income Strategy ETF $187 1.45% | |
| Expenses Paid, Amount | $ 187 | |
| Expense Ratio, Percent | 1.45% | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated positive total returns while paying out substantial monthly dividends. The underlying PYPL’s positive performance positively impacted the Fund’s ability to capture a portion of the upside. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. In general, during the reporting period, the underlying PYPL had consistently higher implied volatility. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ PYPL Option Income Strategy ETF S&P 500® Total Return Index 9/25/2023 10000 10000 9/30/2023 9976 9889 10/31/2023 9018 9681 11/30/2023 10105 10565 12/31/2023 10609 11045 1/31/2024 10306 11230 2/29/2024 10463 11830 3/31/2024 11462 12211 4/30/2024 12162 11712 5/31/2024 11552 12293 6/30/2024 10461 12734 7/31/2024 11842 12889 8/31/2024 13111 13201 9/30/2024 14080 13483 10/31/2024 14250 13361 | |
| Average Annual Return [Table Text Block] | Annual Performance Annualized Returns for the Periods Ended October 31, 2024 1 Year Since Inception ( 09/25/2023 YieldMax™ PYPL Option Income Strategy ETF - at NAV 58.02% 38.04% S&P 500® Total Return Index 38.02% 30.18% | |
| Performance Inception Date | Sep. 25, 2023 | |
| 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.yieldmaxetfs.com/our-etfs/PYPY for more recent performance information. | |
| Net Assets | $ 45,200,000 | |
| Holdings Count | Holdings | 10 | |
| Advisory Fees Paid, Amount | $ 174,754 | |
| Investment Company, Portfolio Turnover | 344% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $45,200 Number of Holdings 10 Total Advisory Fee Paid $174,754 Annual Portfolio Turnover 344% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.891 Purchased Call Options 0.087 Cash & Cash Equivalents 0.022 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.019 Written Put Options -0.023 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 2.63%, 04/15/2025 27.2 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 26.6 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 25.7 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 9.6 PayPal Holdings, Inc., Expiration: 12/20/2024; Exercise Price: $75.00 7.9 First American Government Obligations Fund - Class X, 4.78% 5.3 PayPal Holdings, Inc., Expiration: 11/08/2024; Exercise Price: $83.00 0.8 PayPal Holdings, Inc., Expiration: 11/01/2024; Exercise Price: $91.00 0.0* PayPal Holdings, Inc., Expiration: 11/08/2024; Exercise Price: $80.00 -1.9 PayPal Holdings, Inc., Expiration: 12/20/2024; Exercise Price: $75.01 -2.3 * Less than 0.05% of net assets. | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax(TM) SMCI Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ SMCI Option Income Strategy ETF | |
| Class Name | YieldMax™ SMCI Option Income Strategy ETF | |
| Trading Symbol | SMCY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/SMCY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/SMCY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ SMCI Option Income Strategy ETF $12 0.99% The Fund commenced operations on September 11, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Expenses Paid, Amount | $ 12 | |
| Expense Ratio, Percent | 0.99% | |
| Expenses Short Period Footnote [Text Block] | The Fund commenced operations on September 11, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated negative total returns primarily due to the poor performance of the underlying SMCI. It did pay out substantial monthly dividends. It is worth noting that the Fund was not live for the entire reporting period so there is limited history. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying index plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying SMCI saw a high implied volatility. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ SMCI Option Income Strategy ETF S&P 500® Total Return Index 9/11/2024 10000 10000 9/30/2024 9798 10382 10/31/2024 7325 10288 | |
| Average Annual Return [Table Text Block] | Annual Performance Returns for the Period Ended October 31, 2024 Since Inception ( 09/11/2024 YieldMax™ SMCI Option Income Strategy ETF - at NAV -26.75% S&P 500® Total Return Index 2.88% | |
| Performance Inception Date | Sep. 11, 2024 | |
| 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.yieldmaxetfs.com/our-etfs/SMCY for more recent performance information. | |
| Net Assets | $ 11,596,000 | |
| Holdings Count | Holdings | 11 | |
| Advisory Fees Paid, Amount | $ 6,707 | |
| Investment Company, Portfolio Turnover | 0% | [10] |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $11,596 Number of Holdings 11 Total Advisory Fee Paid $6,707 Portfolio Turnover 0%* * Not annualized for periods less than one year. | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.777 Purchased Call Options 0.06 Cash & Cash Equivalents 0.163 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.001 Written Put Options -0.171 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) First American Government Obligations Fund - Class X, 4.78% 50.8 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 19.5 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 19.4 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 19.4 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 19.4 Super Micro Computer, Inc., Expiration: 11/08/2024; Exercise Price: $33.00 6.0 Super Micro Computer, Inc., Expiration: 11/01/2024; Exercise Price: $58.00 0.0* Super Micro Computer, Inc., Expiration: 11/01/2024; Exercise Price: $57.50 0.0* Super Micro Computer, Inc., Expiration: 11/01/2024; Exercise Price: $38.00 (0.0)^ Super Micro Computer, Inc., Expiration: 11/01/2024; Exercise Price: $50.00 -0.1 * Less than 0.05% of net assets. ^ Less than -0.05% of net assets. | |
| Material Fund Change [Text Block] | How has the Fund changed? There were no material changes during the reporting period. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax SNOW Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ SNOW Option Income Strategy ETF | |
| Class Name | YieldMax™ SNOW Option Income Strategy ETF | |
| Trading Symbol | SNOY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/SNOY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/SNOY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ SNOW Option Income Strategy ETF $41 1.04% The Fund commenced operations on June 10, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Expenses Paid, Amount | $ 41 | |
| Expense Ratio, Percent | 1.04% | |
| Expenses Short Period Footnote [Text Block] | The Fund commenced operations on June 10, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated flat total returns while paying out high monthly dividends. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. It is worth noting that the Fund was not live for the entire reporting period. What Factors Influenced Performance? The implied volatility of the underlying index plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying SNOW saw generally higher implied volatility. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ SNOW Option Income Strategy ETF S&P 500® Total Return Index 6/10/2024 10000 10000 6/30/2024 10483 10193 7/31/2024 10249 10317 8/31/2024 9509 10567 9/30/2024 9792 10793 10/31/2024 9833 10695 | |
| Average Annual Return [Table Text Block] | Annual Performance Returns for the Period Ended October 31, 2024 Since Inception ( 06/10/2024 YieldMax™ SNOW Option Income Strategy ETF - at NAV -1.67% S&P 500® Total Return Index 6.95% | |
| Performance Inception Date | Jun. 10, 2024 | |
| 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.yieldmaxetfs.com/our-etfs/SNOY for more recent performance information. | |
| Net Assets | $ 18,756,000 | |
| Holdings Count | Holdings | 14 | |
| Advisory Fees Paid, Amount | $ 48,315 | |
| Investment Company, Portfolio Turnover | 2% | [11] |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $18,756 Number of Holdings 14 Total Advisory Fee Paid $48,315 Portfolio Turnover 2%* * Not annualized for periods less than one year. | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.902 Purchased Call Options 0.061 Cash & Cash Equivalents 0.037 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.006 Written Put Options -0.139 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 3.88%, 01/15/2026 26.3 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 24.7 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 21.5 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 17.7 First American Government Obligations Fund - Class X, 4.78% 8.9 Snowflake, Inc., Expiration: 12/20/2024; Exercise Price: $125.00 5.9 Snowflake, Inc., Expiration: 11/08/2024; Exercise Price: $123.00 0.1 Snowflake, Inc., Expiration: 11/01/2024; Exercise Price: $124.00 0.1 Snowflake, Inc., Expiration: 11/01/2024; Exercise Price: $122.00 0.0* Snowflake, Inc., Expiration: 11/01/2024; Exercise Price: $123.00 (0.0)^ * Less than 0.05% of net assets. ^ Less than -0.05% of net assets. | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax SQ Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ SQ Option Income Strategy ETF | |
| Class Name | YieldMax™ SQ Option Income Strategy ETF | |
| Trading Symbol | SQY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/SQY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/SQY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ SQ Option Income Strategy ETF $197 1.43% | |
| Expenses Paid, Amount | $ 197 | |
| Expense Ratio, Percent | 1.43% | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated positive total returns while paying out substantial monthly dividends. The underlying SQ’s positive performance positively impacted the Fund’s ability to capture a portion of the upside. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying SQ saw generally higher implied volatility. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. As the underlying SQ performed well, SQY was able to capture a nice portion of that upside. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ SQ Option Income Strategy ETF S&P 500® Total Return Index 10/10/2023 10000 10000 10/31/2023 8883 9628 11/30/2023 12414 10507 12/31/2023 14503 10984 1/31/2024 12165 11169 2/29/2024 14502 11765 3/31/2024 16043 12144 4/30/2024 14391 11648 5/31/2024 13268 12225 6/30/2024 13843 12664 7/31/2024 13306 12818 8/31/2024 14660 13129 9/30/2024 14885 13410 10/31/2024 15545 13288 | |
| Average Annual Return [Table Text Block] | Annual Performance Annualized Returns for the Periods Ended October 31, 2024 1 Year Since Inception ( 10/10/2023 YieldMax™ SQ Option Income Strategy ETF - at NAV 75.00% 51.76% S&P 500® Total Return Index 38.02% 30.84% | |
| Performance Inception Date | Oct. 10, 2023 | |
| 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.yieldmaxetfs.com/our-etfs/SQY for more recent performance information. | |
| Net Assets | $ 50,274,000 | |
| Holdings Count | Holdings | 10 | |
| Advisory Fees Paid, Amount | $ 306,130 | |
| Investment Company, Portfolio Turnover | 0% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $50,274 Number of Holdings 10 Total Advisory Fee Paid $306,130 Annual Portfolio Turnover 0% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.874 Purchased Call Options 0.142 Cash & Cash Equivalents -0.016 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.003 Written Put Options -0.038 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 3.88%, 01/15/2026 26.6 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 26.2 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 24.9 Block, Inc., Expiration: 12/20/2024; Exercise Price: $65.00 14.2 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 9.7 First American Government Obligations Fund - Class X, 4.78% 1.5 Block, Inc., Expiration: 11/01/2024; Exercise Price: $80.00 0.0* Block, Inc., Expiration: 11/01/2024; Exercise Price: $78.00 0.0* Block, Inc., Expiration: 11/01/2024; Exercise Price: $74.00 -0.3 Block, Inc., Expiration: 12/20/2024; Exercise Price: $65.01 -3.8 * Less than 0.05% of net assets. | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax TSLA Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ TSLA Option Income Strategy ETF | |
| Class Name | YieldMax™ TSLA Option Income Strategy ETF | |
| Trading Symbol | TSLY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/TSLY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/TSLY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ TSLA Option Income Strategy ETF $109 1.04% | |
| Expenses Paid, Amount | $ 109 | |
| Expense Ratio, Percent | 1.04% | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated total returns that were flat while paying out substantial monthly dividends. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying TSLA saw a lull in implied volatility but picked up the later portion of the year. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ TSLA Option Income Strategy ETF S&P 500® Total Return Index 11/22/2022 10000 10000 11/30/2022 10727 10196 12/31/2022 7325 9608 1/31/2023 8508 10212 2/28/2023 10220 9963 3/31/2023 10304 10329 4/30/2023 8446 10490 5/31/2023 10125 10535 6/30/2023 11752 11231 7/31/2023 12448 11592 8/31/2023 11256 11408 9/30/2023 11011 10864 10/31/2023 9274 10635 11/30/2023 10248 11607 12/31/2023 11004 12134 1/31/2024 8656 12338 2/29/2024 9605 12997 3/31/2024 8652 13415 4/30/2024 8835 12867 5/31/2024 8924 13505 6/30/2024 9856 13990 7/31/2024 10237 14160 8/31/2024 9549 14503 9/30/2024 10602 14813 10/31/2024 10127 14679 | |
| Average Annual Return [Table Text Block] | Annual Performance Annualized Returns for the Periods Ended October 31, 2024 1 Year Since Inception ( 11/22/2022 YieldMax™ TSLA Option Income Strategy ETF - at NAV 9.21% 0.65% S&P 500® Total Return Index 38.02% 21.88% | |
| Performance Inception Date | Nov. 22, 2022 | |
| 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.yieldmaxetfs.com/our-etfs/TSLY for more recent performance information. | |
| Net Assets | $ 826,581,000 | |
| Holdings Count | Holdings | 11 | |
| Advisory Fees Paid, Amount | $ 7,356,788 | |
| Investment Company, Portfolio Turnover | 51% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $826,581 Number of Holdings 11 Total Advisory Fee Paid $7,356,788 Annual Portfolio Turnover 51% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 1.065 Purchased Call Options 0.046 Cash & Cash Equivalents -0.111 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.02 Written Put Options -0.057 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 0.75%, 11/15/2024 27.4 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 26.5 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 26.5 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 26.1 Tesla, Inc., Expiration: 11/15/2024; Exercise Price: $255.00 3.7 First American Government Obligations Fund - Class X, 4.78% 2.1 Tesla, Inc., Expiration: 11/08/2024; Exercise Price: $275.00 0.7 Tesla, Inc., Expiration: 11/15/2024; Exercise Price: $245.00 0.2 Tesla, Inc., Expiration: 11/15/2024; Exercise Price: $245.01 -0.1 Tesla, Inc., Expiration: 11/08/2024; Exercise Price: $260.00 -2.0 | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective February 26, 2024, the Fund executed a 1:2 reverse stock split of their issued and outstanding shares. Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no material changes during the reporting period. | |
| YieldMax(TM) TSM Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ TSM Option Income Strategy ETF | |
| Class Name | YieldMax™ TSM Option Income Strategy ETF | |
| Trading Symbol | TSMY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/TSMY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/TSMY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ TSM Option Income Strategy ETF $20 0.99% The Fund commenced operations on August 20, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Expenses Paid, Amount | $ 20 | |
| Expense Ratio, Percent | 0.99% | |
| Expenses Short Period Footnote [Text Block] | The Fund commenced operations on August 20, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated positive total returns while paying out substantial monthly dividends. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. It is worth noting that the Fund was not live for the entire reporting period. What Factors Influenced Performance? The implied volatility of the underlying index plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying TSM saw somewhat higher implied volatility, although mixed during its tenure. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ TSM Option Income Strategy ETF S&P 500® Total Return Index 8/20/2024 10000 10000 8/31/2024 10126 10095 9/30/2024 9767 10311 10/31/2024 10526 10217 | |
| Average Annual Return [Table Text Block] | Annual Performance Returns for the Period Ended October 31, 2024 Since Inception ( 08/20/2024 YieldMax™ TSM Option Income Strategy ETF - at NAV 5.26% S&P 500® Total Return Index 2.17% | |
| Performance Inception Date | Aug. 20, 2024 | |
| 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.yieldmaxetfs.com/our-etfs/TSMY for more recent performance information. | |
| Net Assets | $ 23,232,000 | |
| Holdings Count | Holdings | 13 | |
| Advisory Fees Paid, Amount | $ 10,625 | |
| Investment Company, Portfolio Turnover | 7% | [12] |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $23,232 Number of Holdings 13 Total Advisory Fee Paid $10,625 Portfolio Turnover 7%* * Not annualized for periods less than one year. | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.686 Purchased Call Options 0.061 Cash & Cash Equivalents 0.253 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.016 Written Put Options -0.024 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and other assets in excess of liabilities. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) First American Government Obligations Fund - Class X, 4.78% 22.1 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 17.2 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 17.2 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 17.1 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 17.1 Taiwan Semiconductor Manufacturing Co. Ltd., Expiration: 11/15/2024; Exercise Price: $185.00 5.5 Taiwan Semiconductor Manufacturing Co. Ltd., Expiration: 11/08/2024; Exercise Price: $207.50 0.4 Taiwan Semiconductor Manufacturing Co. Ltd., Expiration: 11/08/2024; Exercise Price: $205.00 0.1 Taiwan Semiconductor Manufacturing Co. Ltd., Expiration: 11/08/2024; Exercise Price: $210.00 0.1 Taiwan Semiconductor Manufacturing Co. Ltd., Expiration: 11/08/2024; Exercise Price: $200.00 -0.2 | |
| Material Fund Change [Text Block] | How has the Fund changed? There were no material changes during the reporting period. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax Ultra Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ Ultra Option Income Strategy ETF | |
| Class Name | YieldMax™ Ultra Option Income Strategy ETF | |
| Trading Symbol | ULTY | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/ULTY (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/ULTY | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ Ultra Option Income Strategy ETF $81 1.25% The Fund commenced operations on February 28, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Expenses Paid, Amount | $ 81 | |
| Expense Ratio, Percent | 1.25% | |
| Expenses Short Period Footnote [Text Block] | The Fund commenced operations on February 28, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated slightly negative total returns while paying out substantial monthly dividends. Since ULTY looks to develop a portfolio of 15-30 underlying stocks with covered calls and/or covered spreads, the volatility of the underlying securities will impact the performance of the Fund where negative moves in the underlying will filter through to the Fund. Since the underlying securities are selected based on a screen for high implied volatility, a significant opportunity to sell higher extrinsic premiums exists to filter through to investors as distributions. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. It is worth noting that the Fund was not live for the entire reporting period. What Factors Influenced Performance? The implied volatility of the underlying securities plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying issues saw high implied volatility on a consistent basis due to the selection criteria. Often the Fund may include positions that have impending earnings announcements and may be volatile in their price movements as well as having high implied volatility around those earnings announcements leading to outsized option premiums. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ Ultra Option Income Strategy ETF S&P 500® Total Return Index 2/28/2024 10000 10000 2/29/2024 9675 10054 3/31/2024 9784 10378 4/30/2024 8538 9954 5/31/2024 9025 10448 6/30/2024 9218 10823 7/31/2024 9038 10954 8/31/2024 8875 11220 9/30/2024 9119 11460 10/31/2024 9237 11356 | |
| Average Annual Return [Table Text Block] | Annual Performance Returns for the Period Ended October 31, 2024 Since Inception ( 02/28/2024 YieldMax™ Ultra Option Income Strategy ETF - at NAV -7.63% S&P 500® Total Return Index 13.56% | |
| Performance Inception Date | Feb. 28, 2024 | |
| 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.yieldmaxetfs.com/our-etfs/ULTY for more recent performance information. | |
| Net Assets | $ 205,431,000 | |
| Holdings Count | Holdings | 79 | |
| Advisory Fees Paid, Amount | $ 1,037,770 | |
| Investment Company, Portfolio Turnover | 717% | [13] |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $205,431 Number of Holdings 79 Total Advisory Fee Paid $1,037,770 Portfolio Turnover 717%* * Not annualized for periods less than one year. | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % Common Stocks 0.691 Exchange Traded Funds 0.148 Purchased Call Options 0.009 Purchased Put Options 0.02 Cash & Cash Equivalents 0.132 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.032 Written Put Options -0.012 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) First American Government Obligations Fund - Class X, 4.78% 14.5 NVIDIA Corp. 5.4 ProShares UltraPro QQQ 5.4 Direxion Daily Small Cap Bull 3X Shares 5.3 NuScale Power Corp. 4.7 MARA Holdings, Inc. 4.5 Unity Software, Inc. 4.4 Redfin Corp. 4.3 Palantir Technologies, Inc. 4.2 MicroStrategy, Inc. 4.0 | |
| Material Fund Change [Text Block] | How has the Fund changed? There were no material changes during the reporting period. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMax XOM Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ XOM Option Income Strategy ETF | |
| Class Name | YieldMax™ XOM Option Income Strategy ETF | |
| Trading Symbol | XOMO | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/XOMO (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/XOMO | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ XOM Option Income Strategy ETF $132 1.25% | |
| Expenses Paid, Amount | $ 132 | |
| Expense Ratio, Percent | 1.25% | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated positive total returns while paying out monthly dividends. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the underlying security plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying XOM saw implied volatility more measured with small periods of increases. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. As the underlying XOM performed was positive, XOMO was able to capture a portion of that upside. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ XOM Option Income Strategy ETF S&P 500® Total Return Index 8/30/2023 10000 10000 8/31/2023 9992 9986 9/30/2023 10178 9510 10/31/2023 9292 9310 11/30/2023 9243 10161 12/31/2023 9143 10622 1/31/2024 9209 10801 2/29/2024 9499 11377 3/31/2024 10108 11743 4/30/2024 10146 11264 5/31/2024 10093 11822 6/30/2024 9909 12246 7/31/2024 10129 12395 8/31/2024 10398 12696 9/30/2024 10366 12967 10/31/2024 10320 12850 | |
| Average Annual Return [Table Text Block] | Annual Performance Annualized Returns for the Periods Ended October 31, 2024 1 Year Since Inception ( 08/30/2023 YieldMax™ XOM Option Income Strategy ETF - at NAV 11.07% 2.73% S&P 500® Total Return Index 38.02% 23.90% | |
| Performance Inception Date | Aug. 30, 2023 | |
| 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.yieldmaxetfs.com/our-etfs/XOMO for more recent performance information. | |
| Net Assets | $ 32,232,000 | |
| Holdings Count | Holdings | 12 | |
| Advisory Fees Paid, Amount | $ 193,189 | |
| Investment Company, Portfolio Turnover | 6% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $32,232 Number of Holdings 12 Total Advisory Fee Paid $193,189 Annual Portfolio Turnover 6% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.904 Purchased Call Options 0.061 Cash & Cash Equivalents 0.035 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.003 Written Put Options -0.02 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and other assets in excess of liabilities. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 3.88%, 01/15/2026 26.4 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 24.8 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 24.0 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 15.2 First American Government Obligations Fund - Class X, 4.78% 6.1 Exxon Mobil Corp., Expiration: 11/15/2024; Exercise Price: $115.00 3.4 Exxon Mobil Corp., Expiration: 11/01/2024; Exercise Price: $124.00 0.1 Exxon Mobil Corp., Expiration: 11/08/2024; Exercise Price: $122.00 0.0* Exxon Mobil Corp., Expiration: 11/01/2024; Exercise Price: $125.00 0.0* Exxon Mobil Corp., Expiration: 11/08/2024; Exercise Price: $119.00 (0.0)^ * Less than 0.05% of net assets. ^ Less than -0.05% of net assets. | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMaxTM Bitcoin Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ Bitcoin Option Income Strategy ETF | |
| Class Name | YieldMax™ Bitcoin Option Income Strategy ETF | |
| Trading Symbol | YBIT | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/YBIT (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/YBIT | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ Bitcoin Option Income Strategy ETF $242 4.75% The Fund commenced operations on April 22, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Expenses Paid, Amount | $ 242 | |
| Expense Ratio, Percent | 4.75% | |
| Expenses Short Period Footnote [Text Block] | The Fund commenced operations on April 22, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? During the reporting period, the Fund generated negative total returns primarily due to the performance of the underlying bitcoin related ETPs (exchange traded products). At the same time, it paid out substantial monthly dividends. Selling covered calls or covered call spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. It is worth noting that YBIT was not live during the entire reporting period. What Factors Influenced Performance? The implied volatility of underlying exchange traded products plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying ETPs saw higher volatility. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has downside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ Bitcoin Option Income Strategy ETF S&P 500® Total Return Index 4/22/2024 10000 10000 4/30/2024 9482 10052 5/31/2024 10432 10550 6/30/2024 9356 10929 7/31/2024 9621 11062 8/31/2024 8401 11330 9/30/2024 8619 11572 10/31/2024 9275 11467 | |
| Average Annual Return [Table Text Block] | Annual Performance Returns for the Period Ended October 31, 2024 Since Inception ( 04/22/2024 YieldMax™ Bitcoin Option Income Strategy ETF - at NAV -7.26% S&P 500® Total Return Index 14.67% | |
| Performance Inception Date | Apr. 22, 2024 | |
| 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.yieldmaxetfs.com/our-etfs/YBIT for more recent performance information. | |
| Net Assets | $ 47,830,000 | |
| Holdings Count | Holdings | 8 | |
| Advisory Fees Paid, Amount | $ 213,117 | |
| Investment Company, Portfolio Turnover | 28% | [14] |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $47,830 Number of Holdings 8 Total Advisory Fee Paid $213,117 Portfolio Turnover 28%* * Not annualized for periods less than one year. | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 1.058 Purchased Call Options 0.002 Cash & Cash Equivalents -0.06 Security Type - Other Financial Instruments (% of net assets) Sector % Purchased Call Options -0.01 Purchased Put Options -0.326 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 3.00%, 07/15/2025 29.3 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 29.2 U.S. Treasury Note/Bond - 2.63%, 04/15/2025 24.6 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 22.7 First American Government Obligations Fund - Class X, 4.78% 5.3 ProShares Bitcoin ETF, Expiration: 11/15/2024; Exercise Price: $26.00 0.2 ProShares Bitcoin ETF, Expiration: 11/08/2024; Exercise Price: $21.00 -1.0 Proshares Bitcoin ETF, Expiration: 11/15/2024; Exercise Price: $26.01 -32.6 | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMaxTM Magnificent 7 Fund of Option Income ETFs | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ Magnificent 7 Fund of Option Income ETFs | |
| Class Name | YieldMax™ Magnificent 7 Fund of Option Income ETFs | |
| Trading Symbol | YMAG | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/YMAG (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/YMAG | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ Magnificent 7 Fund of Option Income ETFs $24 0.29% The Fund commenced operations on January 29, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Expenses Paid, Amount | $ 24 | |
| Expense Ratio, Percent | 0.29% | |
| Expenses Short Period Footnote [Text Block] | The Fund commenced operations on January 29, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? The YieldMax™ Magnificent 7 Fund is a “Fund of Funds” in that it holds other individual security YieldMax™ tickers including Apple (AAPL), Amazon (AMZN), Alphabet (GOOGL), Meta Platforms (FBY), Microsoft (MSFT), NVIDIA (NVDA) and Tesla (TSLA). During the reporting period, the Fund generated positive total returns primarily due to the positive performance of the underlying securities contained in the YieldMax™ Funds within the portfolio. It also paid out substantial monthly dividends. It is worth noting that the Fund was not live for the entire reporting period. Selling covered calls or covered call spreads allowed the Fund’s "underlying Funds" to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the collective ETFs held, and their underlying securities play a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying ETFs had varied implied volatility. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since each of the Funds has the downside risk of its underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ Magnificent 7 Fund Of Option Income ETFs S&P 500® Total Return Index 1/29/2024 10000 10000 1/31/2024 9740 9834 2/29/2024 10608 10359 3/31/2024 10763 10693 4/30/2024 10589 10256 5/31/2024 11252 10764 6/30/2024 12038 11151 7/31/2024 11753 11286 8/31/2024 11773 11560 9/30/2024 12188 11807 10/31/2024 12244 11700 | |
| Average Annual Return [Table Text Block] | Annual Performance Returns for the Period Ended October 31, 2024 Since Inception ( 01/29/2024 YieldMax™ Magnificent 7 Fund Of Option Income ETFs - at NAV 22.44% S&P 500® Total Return Index 17.00% | |
| Performance Inception Date | Jan. 29, 2024 | |
| 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.yieldmaxetfs.com/our-etfs/YMAG for more recent performance information. | |
| Net Assets | $ 182,671,000 | |
| Holdings Count | Holdings | 8 | |
| Advisory Fees Paid, Amount | $ 172,695 | |
| Investment Company, Portfolio Turnover | 21% | [15] |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $182,671 Number of Holdings 8 Total Advisory Fee Paid $172,695 Portfolio Turnover 21%* * Not annualized for periods less than one year. | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % Exchange Traded Funds 0.987 Cash & Cash Equivalents 0.013 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and other assets in excess of liabilities. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) Yieldmax TSLA Option Income Strategy ETF 15.1 Yieldmax META Option Income Strategy ETF 14.7 YieldMax GOOGL Option Income Strategy ETF 14.2 YieldMax MSFT Option Income Strategy ETF 14.0 Yieldmax AMZN Option Income Strategy ETF 13.6 YieldMax NVDA Option Income Strategy ETF 13.6 YieldMax AAPL Option Income Strategy ETF 13.5 First American Government Obligations Fund - Class X, 4.78% 1.0 | |
| Material Fund Change [Text Block] | How has the Fund changed? There were no material changes during the reporting period. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMaxTM Universe Fund of Option Income ETFs | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ Universe Fund of Option Income ETFs | |
| Class Name | YieldMax™ Universe Fund of Option Income ETFs | |
| Trading Symbol | YMAX | |
| Security Exchange Name | NYSEArca | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/YMAX (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/YMAX | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ Universe Fund of Option Income ETFs $25 0.29% The Fund commenced operations on January 16, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Expenses Paid, Amount | $ 25 | |
| Expense Ratio, Percent | 0.29% | |
| Expenses Short Period Footnote [Text Block] | The Fund commenced operations on January 16, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? The Fund is a “Fund of Funds,” meaning that it will primarily invest its assets in other YieldMax™ ETFs. During the reporting period, the Fund generated positive total returns which was a result of its underlying Funds underlying securities and the additional extrinsic options premiums generated that the corresponding Funds generating capturing extrinsic premiums. The Fund paid out higher dividends each month. As other YieldMax™ ETFs become available, they can be included in YMAX so the underlying Funds that are available and the performance of those Funds play a part in the performance of YMAX. It is worth noting that the Fund was not live for the entire reporting period. Selling covered calls or covered call spreads allowed the Fund’s “underlying Funds” to capture extrinsic time value available for distribution to shareholders while offering a portion of the upside capture. What Factors Influenced Performance? The implied volatility of the collective ETFs held, and their underlying securities play a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying ETFs had varied implied volatility. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since each of the Funds has the downside risk of its underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may forgo a portion of the upside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ Universe Fund Of Option Income ETFs S&P 500® Total Return Index 1/16/2024 10000 10000 1/31/2024 10095 10171 2/29/2024 11013 10714 3/31/2024 11423 11059 4/30/2024 10832 10607 5/31/2024 11299 11133 6/30/2024 11413 11533 7/31/2024 11371 11673 8/31/2024 11075 11956 9/30/2024 11427 12211 10/31/2024 11511 12101 | |
| Average Annual Return [Table Text Block] | Annual Performance Returns for the Period Ended October 31, 2024 Since Inception ( 01/16/2024 YieldMax™ Universe Fund Of Option Income ETFs - at NAV 15.11% S&P 500® Total Return Index 21.01% | |
| Performance Inception Date | Jan. 16, 2024 | |
| 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.yieldmaxetfs.com/our-etfs/YMAX for more recent performance information. | |
| Net Assets | $ 345,370,000 | |
| Holdings Count | Holdings | 30 | |
| Advisory Fees Paid, Amount | $ 408,184 | |
| Investment Company, Portfolio Turnover | 64% | [16] |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $345,370 Number of Holdings 30 Total Advisory Fee Paid $408,184 Portfolio Turnover 64%* * Not annualized for periods less than one year. | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % Exchange Traded Funds 0.942 Cash & Cash Equivalents 0.058 Purchased Call Options 0.00 Security Type - Other Financial Instruments (% of net assets) Sector % Written Call Options -0.00 Written Put Options -0.017 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. * Less than 0.05% of net assets. ^ Less than -0.05% of net assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) First American Government Obligations Fund - Class X, 4.78% 4.5 Yieldmax TSLA Option Income Strategy ETF 4.3 YieldMax MRNA Option Income Strategy ETF 4.2 Yieldmax Meta Option Income Strategy ETF 4.2 YieldMax JPM Option Income Strategy ETF 4.1 YieldMax NFLX Option Income Strategy ETF 4.0 YieldMax GOOGL Option Income Strategy ETF 4.0 YieldMax ABNB Option Income Strategy ETF 4.0 YieldMax PYPL Option Income Strategy ETF 4.0 YieldMax BABA Option Income Strategy ETF 4.0 | |
| Material Fund Change [Text Block] | How has the Fund changed? There were no material changes during the reporting period. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| YieldMaxTM Short N100 Option Income Strategy ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | YieldMax™ Short N100 Option Income Strategy ETF | |
| Class Name | YieldMax™ Short N100 Option Income Strategy ETF | |
| Trading Symbol | YQQQ | |
| Security Exchange Name | NASDAQ | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.yieldmaxetfs.com/our-etfs/YQQQ (866) 864-3968 | |
| Additional Information Phone Number | (866) 864-3968 | |
| Additional Information Website | www.yieldmaxetfs.com/our-etfs/YQQQ | |
| Expenses [Text Block] | What were the Fund costs for the past year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment YieldMax™ Short N100 Option Income Strategy ETF $21 0.99% The Fund commenced operations on August 14, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Expenses Paid, Amount | $ 21 | |
| Expense Ratio, Percent | 0.99% | |
| Expenses Short Period Footnote [Text Block] | The Fund commenced operations on August 14, 2024. Expenses for a full reporting period would be higher than the figures shown. | |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? YQQQ is part of the inverse YieldMax™ lineup that looks to be positioned synthetically short the underlying QQQ security while selling covered puts and/or covered put spreads. The Fund benefits when QQQ’s share price decreases, generates extrinsic premiums via option selling available as a distribution to investors, and has upside risk of the underlying. During the reporting period, the Fund generated slightly negative total returns while paying out substantial monthly dividends. Selling covered puts or covered put spreads allowed the Fund to capture extrinsic time value available for distribution to shareholders while offering a portion of the downside capture. It is worth noting that the Fund was not live for the entire reporting period. What Factors Influenced Performance? When the underlying moves higher, it can create losses for this inverse ETF. The implied volatility of the underlying index plays a significant role in the amount of extrinsic premiums that can be paid by the Fund. During the reporting period, the underlying QQQ mixed implied volatility with just having missed the August 5th spike and market downturn. As a rule, the higher the implied volatility, the higher the option premiums available for sale and distribution. Since the Fund has upside risk of the underlying, taking in premiums helps offset negative moves where an investor in the Fund would potentially expect to lose less over a period. Conversely, investors may give up a portion of the downside which is an expected trade-off in exchange from capturing option premiums. | |
| 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) Date YieldMax™ Short N100 Option Income Strategy ETF S&P 500® Total Return Index 8/14/2024 10000 10000 8/31/2024 9876 10364 9/30/2024 9519 10585 10/31/2024 9691 10489 | |
| Average Annual Return [Table Text Block] | Annual Performance Returns for the Period Ended October 31, 2024 Since Inception ( 08/14/2024 YieldMax™ Short N100 Option Income Strategy ETF - at NAV -3.09% S&P 500® Total Return Index 4.89% | |
| Performance Inception Date | Aug. 14, 2024 | |
| 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.yieldmaxetfs.com/our-etfs/YQQQ for more recent performance information. | |
| Net Assets | $ 6,051,000 | |
| Holdings Count | Holdings | 11 | |
| Advisory Fees Paid, Amount | $ 8,465 | |
| Investment Company, Portfolio Turnover | 0% | [17] |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Fund Size (Thousands) $6,051 Number of Holdings 11 Total Advisory Fee Paid $8,465 Portfolio Turnover 0%* * Not annualized for periods less than one year. | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Security Type - Investments (% of net assets) Sector % U.S. Treasury Securities 0.998 Purchased Put Options 0.004 Purchased Call Options 0.00 Cash & Cash Equivalents -0.002 Security Type - Other Financial Instruments (% of net assets) Sector % Purchased Put Options -0.01 Purchased Call Options -0.074 Percentages are based on total net assets. Cash & Cash Equivalents represents short-term investments and liabilities in excess of other assets. * Less than 0.05% of net assets. | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) U.S. Treasury Note/Bond - 2.63%, 04/15/2025 25.3 U.S. Treasury Note/Bond - 3.00%, 07/15/2025 25.2 U.S. Treasury Note/Bond - 3.88%, 01/15/2026 25.2 U.S. Treasury Note/Bond - 0.75%, 11/15/2024 24.1 First American Government Obligations Fund - Class X, 4.78% 0.9 Invesco QQQ Trust Series 1, Expiration: 11/15/2024; Exercise Price: $450.00 0.4 Invesco QQQ Trust Series 1, Expiration: 11/15/2024; Exercise Price: $645.00 0.0* Invesco QQQ Trust Series 1, Expiration: 11/15/2024; Exercise Price: $600.00 0.0* Invesco QQQ Trust Series 1, Expiration: 11/15/2024; Exercise Price: $585.00 0.0* Invesco QQQ Trust Series 1, Expiration: 11/01/2024; Exercise Price: $489.00 -1.0 * Less than 0.05% of net assets. | |
| Material Fund Change [Text Block] | How has the Fund changed? Effective September 6, 2024, the Fund will at times opportunistically sell a credit call spread (described below) instead of selling a call option (i.e., the standard strategy) when ZEGA Financial, LLC (the Sub-Adviser) believes doing so will be more advantageous to the Fund’s total return. | |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. | |
| [1]Not annualized for periods less than one year.[2]Not annualized for periods less than one year.[3]Not annualized for periods less than one year.[4]Not annualized for periods less than one year.[5]Not annualized for periods less than one year.[6]Not annualized for periods less than one year.[7]Not annualized for periods less than one year.[8]Not annualized for periods less than one year.[9]Not annualized for periods less than one year.[10]Not annualized for periods less than one year.[11]Not annualized for periods less than one year.[12]Not annualized for periods less than one year.[13]Not annualized for periods less than one year.[14]Not annualized for periods less than one year.[15]Not annualized for periods less than one year.[16]Not annualized for periods less than one year.[17]Not annualized for periods less than one year. | ||
| Shareholder Report, Line Graph (Details) - USD ($) | 1 Months Ended | 2 Months Ended | 3 Months Ended | 4 Months Ended | 5 Months Ended | 6 Months Ended | 7 Months Ended | 8 Months Ended | 9 Months Ended | 10 Months Ended | 11 Months Ended | 12 Months Ended | 13 Months Ended | 14 Months Ended | 15 Months Ended | 16 Months Ended | 17 Months Ended | 18 Months Ended | 19 Months Ended | 20 Months Ended | 21 Months Ended | 22 Months Ended | 23 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Oct. 07, 2024 | Sep. 11, 2024 | Aug. 31, 2024 | Aug. 20, 2024 | Aug. 14, 2024 | Aug. 07, 2024 | Jul. 31, 2024 | Jul. 23, 2024 | Jul. 09, 2024 | Jun. 30, 2024 | Jun. 24, 2024 | Jun. 10, 2024 | May 31, 2024 | May 20, 2024 | May 01, 2024 | Apr. 30, 2024 | Apr. 22, 2024 | Feb. 29, 2024 | Feb. 29, 2024 | Feb. 28, 2024 | Feb. 24, 2024 | Jan. 31, 2024 | Jan. 29, 2024 | Jan. 16, 2024 | Nov. 30, 2023 | Nov. 27, 2023 | Oct. 31, 2023 | Oct. 23, 2023 | Oct. 10, 2023 | Sep. 30, 2023 | Sep. 30, 2023 | Sep. 25, 2023 | Sep. 18, 2023 | Sep. 11, 2023 | Aug. 31, 2023 | Aug. 31, 2023 | Aug. 30, 2023 | Aug. 24, 2023 | Aug. 14, 2023 | Aug. 07, 2023 | Jul. 31, 2023 | Jul. 31, 2023 | Jul. 27, 2023 | Jul. 24, 2023 | May 10, 2023 | Apr. 30, 2023 | Apr. 17, 2023 | Nov. 30, 2022 | Nov. 22, 2022 | Oct. 31, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Aug. 31, 2024 | Aug. 31, 2024 | Aug. 31, 2024 | Jul. 31, 2024 | Jul. 31, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | May 31, 2024 | May 31, 2024 | Mar. 31, 2024 | Mar. 31, 2024 | Feb. 29, 2024 | Jan. 31, 2024 | Dec. 31, 2023 | Nov. 30, 2023 | Oct. 31, 2023 | Oct. 31, 2023 | Oct. 31, 2023 | Sep. 30, 2023 | Sep. 30, 2023 | Sep. 30, 2023 | Aug. 31, 2023 | Aug. 31, 2023 | Aug. 31, 2023 | Aug. 31, 2023 | May 31, 2023 | May 31, 2023 | Dec. 31, 2022 | Oct. 31, 2024 | Oct. 31, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Aug. 31, 2024 | Aug. 31, 2024 | Jul. 31, 2024 | Jul. 31, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Apr. 30, 2024 | Apr. 30, 2024 | Mar. 31, 2024 | Feb. 29, 2024 | Jan. 31, 2024 | Dec. 31, 2023 | Nov. 30, 2023 | Nov. 30, 2023 | Nov. 30, 2023 | Oct. 31, 2023 | Oct. 31, 2023 | Oct. 31, 2023 | Sep. 30, 2023 | Sep. 30, 2023 | Sep. 30, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Jun. 30, 2023 | Jan. 31, 2023 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Aug. 31, 2024 | Aug. 31, 2024 | Jul. 31, 2024 | Jul. 31, 2024 | May 31, 2024 | May 31, 2024 | Apr. 30, 2024 | Mar. 31, 2024 | Feb. 29, 2024 | Jan. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2023 | Nov. 30, 2023 | Nov. 30, 2023 | Nov. 30, 2023 | Oct. 31, 2023 | Oct. 31, 2023 | Oct. 31, 2023 | Oct. 31, 2023 | Jul. 31, 2023 | Jul. 31, 2023 | Feb. 28, 2023 | Oct. 31, 2024 | Oct. 31, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Aug. 31, 2024 | Aug. 31, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | May 31, 2024 | Apr. 30, 2024 | Mar. 31, 2024 | Feb. 29, 2024 | Jan. 31, 2024 | Jan. 31, 2024 | Jan. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2023 | Nov. 30, 2023 | Nov. 30, 2023 | Nov. 30, 2023 | Nov. 30, 2023 | Aug. 31, 2023 | Aug. 31, 2023 | Mar. 31, 2023 | Oct. 31, 2024 | Oct. 31, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Jul. 31, 2024 | Jul. 31, 2024 | Jun. 30, 2024 | May 31, 2024 | Apr. 30, 2024 | Mar. 31, 2024 | Feb. 29, 2024 | Feb. 29, 2024 | Feb. 29, 2024 | Jan. 31, 2024 | Jan. 31, 2024 | Jan. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2023 | Sep. 30, 2023 | Sep. 30, 2023 | Apr. 30, 2023 | Oct. 31, 2024 | Oct. 31, 2024 | Aug. 31, 2024 | Aug. 31, 2024 | Jul. 31, 2024 | Jun. 30, 2024 | May 31, 2024 | Apr. 30, 2024 | Mar. 31, 2024 | Mar. 31, 2024 | Mar. 31, 2024 | Feb. 29, 2024 | Feb. 29, 2024 | Feb. 29, 2024 | Jan. 31, 2024 | Jan. 31, 2024 | Jan. 31, 2024 | Jan. 31, 2024 | Oct. 31, 2023 | Oct. 31, 2023 | May 31, 2023 | Sep. 30, 2024 | Sep. 30, 2024 | Aug. 31, 2024 | Jul. 31, 2024 | Jun. 30, 2024 | May 31, 2024 | Apr. 30, 2024 | Apr. 30, 2024 | Apr. 30, 2024 | Mar. 31, 2024 | Mar. 31, 2024 | Mar. 31, 2024 | Feb. 29, 2024 | Feb. 29, 2024 | Feb. 29, 2024 | Feb. 29, 2024 | Nov. 30, 2023 | Nov. 30, 2023 | Jun. 30, 2023 | Oct. 31, 2024 | Oct. 31, 2024 | Sep. 30, 2024 | Aug. 31, 2024 | Jul. 31, 2024 | Jun. 30, 2024 | May 31, 2024 | May 31, 2024 | May 31, 2024 | Apr. 30, 2024 | Apr. 30, 2024 | Apr. 30, 2024 | Mar. 31, 2024 | Mar. 31, 2024 | Mar. 31, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2023 | Jul. 31, 2023 | Oct. 31, 2024 | Sep. 30, 2024 | Aug. 31, 2024 | Jul. 31, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | May 31, 2024 | May 31, 2024 | May 31, 2024 | Apr. 30, 2024 | Apr. 30, 2024 | Apr. 30, 2024 | Apr. 30, 2024 | Jan. 31, 2024 | Jan. 31, 2024 | Aug. 31, 2023 | Oct. 31, 2024 | Sep. 30, 2024 | Aug. 31, 2024 | Jul. 31, 2024 | Jul. 31, 2024 | Jul. 31, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | May 31, 2024 | May 31, 2024 | May 31, 2024 | May 31, 2024 | Feb. 29, 2024 | Feb. 29, 2024 | Sep. 30, 2023 | Oct. 31, 2024 | Sep. 30, 2024 | Aug. 31, 2024 | Aug. 31, 2024 | Aug. 31, 2024 | Jul. 31, 2024 | Jul. 31, 2024 | Jul. 31, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Mar. 31, 2024 | Oct. 31, 2023 | Oct. 31, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Aug. 31, 2024 | Aug. 31, 2024 | Aug. 31, 2024 | Jul. 31, 2024 | Jul. 31, 2024 | Jul. 31, 2024 | Jul. 31, 2024 | Apr. 30, 2024 | Apr. 30, 2024 | Nov. 30, 2023 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Aug. 31, 2024 | Aug. 31, 2024 | Aug. 31, 2024 | Aug. 31, 2024 | May 31, 2024 | May 31, 2024 | Dec. 31, 2023 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jan. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Jul. 31, 2024 | Jul. 31, 2024 | Feb. 29, 2024 | Aug. 31, 2024 | Aug. 31, 2024 | Mar. 31, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Apr. 30, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | May 31, 2024 | Jun. 30, 2024 | Jul. 31, 2024 | Aug. 31, 2024 | Sep. 30, 2024 | Oct. 31, 2024 | |
| YieldMax AMD Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 9,931 | $ 10,000 | $ 9,420 | $ 10,998 | $ 12,575 | $ 12,720 | $ 14,508 | $ 13,622 | $ 12,239 | $ 12,827 | $ 13,035 | $ 11,507 | $ 11,996 | $ 12,987 | $ 11,833 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax ABNB Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,188 | $ 10,000 | $ 9,744 | $ 8,537 | $ 8,809 | $ 9,281 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax AI Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 9,978 | $ 10,000 | $ 9,874 | $ 9,004 | $ 10,683 | $ 8,670 | $ 7,545 | $ 8,245 | $ 8,023 | $ 7,737 | $ 7,140 | $ 7,123 | $ 6,938 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax AMZN Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,293 | $ 10,000 | $ 10,841 | $ 10,140 | $ 10,794 | $ 11,337 | $ 11,833 | $ 11,869 | $ 13,564 | $ 14,054 | $ 13,731 | $ 14,295 | $ 14,778 | $ 14,525 | $ 13,924 | $ 14,308 | $ 14,303 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax AAPL Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,251 | $ 10,000 | $ 10,744 | $ 11,559 | $ 11,778 | $ 10,952 | $ 10,130 | $ 10,188 | $ 11,061 | $ 11,264 | $ 10,816 | $ 10,820 | $ 10,494 | $ 10,417 | $ 11,268 | $ 11,840 | $ 12,034 | $ 12,408 | $ 12,668 | $ 12,342 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax(TM) BABA Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 10,230 | $ 12,124 | $ 11,500 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax COIN Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 9,937 | $ 9,792 | $ 10,469 | $ 13,684 | $ 17,790 | $ 14,027 | $ 17,722 | $ 23,079 | $ 19,380 | $ 21,500 | $ 20,675 | $ 20,210 | $ 17,786 | $ 17,174 | $ 16,998 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMaxTM Short TSLA Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 10,218 | $ 9,485 | $ 8,245 | $ 9,076 | $ 7,856 | $ 7,912 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMaxTM Short NVDA Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,387 | $ 10,000 | $ 9,889 | $ 9,191 | $ 8,417 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax DIS Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,194 | $ 10,000 | $ 9,864 | $ 10,122 | $ 11,029 | $ 10,974 | $ 11,604 | $ 12,310 | $ 12,978 | $ 12,103 | $ 11,549 | $ 11,309 | $ 10,793 | $ 10,596 | $ 11,124 | $ 11,181 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax META Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,163 | $ 10,000 | $ 9,540 | $ 9,911 | $ 10,217 | $ 11,016 | $ 11,866 | $ 12,538 | $ 14,190 | $ 14,300 | $ 12,722 | $ 13,458 | $ 14,193 | $ 13,280 | $ 14,883 | $ 16,110 | $ 16,337 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMaxTM Short COIN Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 9,966 | $ 11,640 | $ 11,411 | $ 10,961 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax Gold Miners Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 9,538 | $ 10,000 | $ 9,440 | $ 9,864 | $ 9,987 | $ 10,155 | $ 9,934 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax GOOGL Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,241 | 10,000 | 10,421 | 10,058 | 9,650 | 9,709 | 9,854 | 9,560 | 9,264 | 9,765 | 10,285 | 10,868 | 11,485 | 10,650 | 10,416 | 10,477 | 10,597 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax JPM Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 10,044 | $ 9,542 | $ 10,021 | $ 10,546 | $ 10,818 | $ 11,426 | $ 12,037 | $ 11,314 | $ 11,602 | $ 11,599 | $ 11,673 | $ 11,953 | $ 11,351 | $ 11,675 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax MRNA Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 9,675 | $ 10,000 | $ 9,572 | $ 12,030 | $ 11,942 | $ 11,480 | $ 13,036 | $ 13,509 | $ 12,809 | $ 10,966 | $ 11,319 | $ 7,921 | $ 7,090 | $ 6,121 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax MSFT Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,234 | 10,000 | 9,996 | 10,813 | 11,729 | 11,894 | 12,408 | 12,836 | 13,153 | 12,450 | 13,235 | 14,038 | 13,032 | 13,155 | 13,422 | 12,839 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax MSTR Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 12,557 | $ 10,000 | $ 21,324 | $ 15,476 | $ 19,532 | $ 18,606 | $ 21,175 | $ 18,224 | $ 21,600 | $ 28,830 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax NFLX Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 9,921 | $ 8,478 | $ 9,401 | $ 10,133 | $ 10,261 | $ 11,379 | $ 12,025 | $ 12,249 | $ 11,490 | $ 12,590 | $ 13,212 | $ 12,741 | $ 13,710 | $ 14,102 | $ 15,363 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax NVDA Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 11,432 | $ 12,183 | $ 12,857 | $ 13,845 | $ 12,734 | $ 12,188 | $ 13,185 | $ 14,110 | $ 15,965 | $ 19,899 | $ 21,887 | $ 20,931 | $ 24,456 | $ 27,383 | $ 27,066 | $ 27,300 | $ 27,486 | $ 29,823 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax Innovation Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,251 | $ 10,000 | $ 9,082 | $ 9,989 | $ 9,375 | $ 9,551 | $ 8,782 | $ 9,908 | $ 10,616 | $ 11,437 | $ 10,108 | $ 9,476 | $ 8,624 | $ 9,450 | $ 10,912 | $ 9,845 | $ 10,721 | $ 10,946 | $ 9,866 | $ 9,692 | $ 9,964 | $ 10,288 | $ 10,039 | $ 10,630 | $ 10,422 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax(TM) PLTR Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 9,857 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax PYPL Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 9,976 | $ 10,000 | $ 9,018 | $ 10,105 | $ 10,609 | $ 10,306 | $ 10,463 | $ 11,462 | $ 12,162 | $ 11,552 | $ 10,461 | $ 11,842 | $ 13,111 | $ 14,080 | $ 14,250 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax(TM) SMCI Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 9,798 | $ 7,325 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax SNOW Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 10,483 | $ 10,249 | $ 9,509 | $ 9,792 | $ 9,833 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax SQ Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 8,883 | $ 12,414 | $ 14,503 | $ 12,165 | $ 14,502 | $ 16,043 | $ 14,391 | $ 13,268 | $ 13,843 | $ 13,306 | $ 14,660 | $ 14,885 | $ 15,545 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax TSLA Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | 10,727 | 10,000 | 7,325 | 8,508 | 10,220 | 10,304 | 8,446 | 10,125 | 11,752 | 12,448 | 11,256 | 11,011 | 9,274 | 10,248 | 11,004 | 8,656 | 9,605 | 8,652 | 8,835 | 8,924 | 9,856 | 10,237 | 9,549 | 10,602 | 10,127 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax(TM) TSM Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,126 | $ 10,000 | $ 9,767 | $ 10,526 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax Ultra Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 9,675 | $ 10,000 | $ 9,784 | $ 8,538 | $ 9,025 | $ 9,218 | $ 9,038 | $ 8,875 | $ 9,119 | $ 9,237 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMax XOM Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 9,992 | $ 10,000 | $ 10,178 | $ 9,292 | $ 9,243 | $ 9,143 | $ 9,209 | $ 9,499 | $ 10,108 | $ 10,146 | $ 10,093 | $ 9,909 | $ 10,129 | $ 10,398 | $ 10,366 | $ 10,320 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMaxTM Bitcoin Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 9,482 | $ 10,000 | $ 10,432 | $ 9,356 | $ 9,621 | $ 8,401 | $ 8,619 | $ 9,275 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMaxTM Magnificent 7 Fund of Option Income ETFs | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 9,740 | $ 10,000 | $ 10,608 | $ 10,763 | $ 10,589 | $ 11,252 | $ 12,038 | $ 11,753 | $ 11,773 | $ 12,188 | $ 12,244 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMaxTM Universe Fund of Option Income ETFs | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 10,095 | $ 11,013 | $ 11,423 | $ 10,832 | $ 11,299 | $ 11,413 | $ 11,371 | $ 11,075 | $ 11,427 | $ 11,511 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| YieldMaxTM Short N100 Option Income Strategy ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 9,876 | $ 9,519 | $ 9,691 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| S&P 500® Total Return Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 10,000 | $ 10,095 | $ 10,000 | $ 10,000 | $ 10,000 | $ 9,942 | $ 10,000 | $ 10,000 | $ 10,025 | $ 10,000 | $ 10,000 | $ 9,945 | $ 10,000 | $ 10,000 | $ 10,052 | $ 10,000 | $ 10,054 | $ 10,234 | $ 10,000 | $ 10,000 | $ 9,834 | $ 10,000 | $ 10,000 | $ 10,043 | $ 10,000 | $ 9,947 | $ 10,000 | $ 10,000 | $ 9,632 | $ 9,889 | $ 10,000 | $ 10,000 | $ 10,000 | $ 10,306 | $ 9,986 | $ 10,000 | $ 10,000 | $ 10,000 | $ 10,000 | $ 10,078 | $ 10,115 | $ 10,000 | $ 10,000 | $ 10,000 | $ 10,047 | $ 10,000 | $ 10,196 | $ 10,000 | $ 10,022 | $ 10,311 | $ 10,382 | $ 10,877 | $ 10,364 | $ 10,183 | $ 10,147 | $ 9,908 | $ 10,193 | $ 10,302 | $ 10,532 | $ 10,550 | $ 10,378 | $ 10,564 | $ 10,359 | $ 10,171 | $ 10,499 | $ 10,855 | $ 9,628 | $ 9,681 | $ 9,430 | $ 9,815 | $ 9,563 | $ 9,510 | $ 10,052 | $ 9,917 | $ 9,993 | $ 9,954 | $ 10,118 | $ 10,090 | $ 9,608 | $ 10,217 | $ 10,288 | $ 11,109 | $ 10,585 | $ 10,400 | $ 10,393 | $ 10,148 | $ 10,317 | $ 10,428 | $ 10,929 | $ 10,910 | $ 9,954 | $ 10,132 | $ 10,693 | $ 10,714 | $ 10,676 | $ 11,349 | $ 10,507 | $ 10,291 | $ 10,565 | $ 9,608 | $ 9,362 | $ 9,310 | $ 9,573 | $ 9,444 | $ 9,516 | $ 9,479 | $ 10,786 | $ 10,757 | $ 10,212 | $ 11,008 | $ 10,489 | $ 10,306 | $ 10,615 | $ 10,365 | $ 10,567 | $ 10,681 | $ 11,043 | $ 11,062 | $ 10,448 | $ 10,634 | $ 10,256 | $ 11,059 | $ 11,246 | $ 11,539 | $ 10,984 | $ 10,758 | $ 11,045 | $ 10,486 | $ 10,217 | $ 10,161 | $ 9,372 | $ 9,246 | $ 9,316 | $ 9,280 | $ 11,133 | $ 11,103 | $ 9,963 | $ 10,518 | $ 10,271 | $ 10,793 | $ 10,909 | $ 11,311 | $ 11,330 | $ 10,823 | $ 11,016 | $ 10,764 | $ 10,607 | $ 11,608 | $ 12,156 | $ 11,169 | $ 10,939 | $ 11,230 | $ 10,681 | $ 10,962 | $ 10,622 | $ 10,228 | $ 10,090 | $ 10,167 | $ 10,127 | $ 10,955 | $ 10,926 | $ 10,329 | $ 10,695 | $ 10,810 | $ 11,552 | $ 11,572 | $ 11,150 | $ 10,954 | $ 11,151 | $ 11,133 | $ 11,133 | $ 12,547 | $ 11,765 | $ 11,523 | $ 11,830 | $ 10,860 | $ 11,146 | $ 10,801 | $ 10,692 | $ 10,549 | $ 10,629 | $ 10,588 | $ 10,433 | $ 10,405 | $ 10,490 | $ 11,447 | $ 11,467 | $ 11,421 | $ 11,220 | $ 11,286 | $ 11,533 | $ 11,685 | $ 12,034 | $ 12,144 | $ 11,894 | $ 12,211 | $ 11,440 | $ 11,741 | $ 11,377 | $ 10,872 | $ 10,726 | $ 10,807 | $ 10,765 | $ 10,214 | $ 10,186 | $ 10,535 | $ 11,664 | $ 11,460 | $ 11,560 | $ 11,673 | $ 12,105 | $ 12,631 | $ 11,648 | $ 11,408 | $ 11,712 | $ 11,808 | $ 12,119 | $ 11,743 | $ 11,452 | $ 11,299 | $ 11,384 | $ 11,340 | $ 11,147 | $ 11,117 | $ 11,231 | $ 11,559 | $ 11,356 | $ 11,807 | $ 11,956 | $ 12,252 | $ 13,084 | $ 12,293 | $ 12,225 | $ 11,974 | $ 11,326 | $ 11,624 | $ 11,264 | $ 11,821 | $ 11,662 | $ 11,751 | $ 11,705 | $ 11,653 | $ 11,622 | $ 11,592 | $ 11,700 | $ 12,211 | $ 12,549 | $ 13,243 | $ 12,734 | $ 12,664 | $ 12,403 | $ 11,888 | $ 12,201 | $ 11,822 | $ 11,338 | $ 11,186 | $ 11,271 | $ 11,227 | $ 11,849 | $ 11,817 | $ 11,408 | $ 12,101 | $ 12,817 | $ 13,565 | $ 12,889 | $ 12,818 | $ 12,554 | $ 12,314 | $ 12,638 | $ 12,246 | $ 11,900 | $ 11,740 | $ 11,830 | $ 11,784 | $ 12,481 | $ 12,448 | $ 10,864 | $ 12,701 | $ 13,854 | $ 12,859 | $ 13,201 | $ 13,129 | $ 12,464 | $ 12,792 | $ 12,395 | $ 12,327 | $ 12,207 | $ 12,162 | $ 12,254 | $ 12,883 | $ 12,848 | $ 10,635 | $ 13,729 | $ 13,134 | $ 13,483 | $ 13,410 | $ 12,767 | $ 13,102 | $ 12,696 | $ 12,477 | $ 12,355 | $ 12,310 | $ 12,403 | $ 12,357 | $ 12,324 | $ 11,607 | $ 13,014 | $ 13,361 | $ 13,288 | $ 13,039 | $ 13,382 | $ 12,967 | $ 12,780 | $ 12,655 | $ 12,608 | $ 12,704 | $ 12,970 | $ 12,935 | $ 12,134 | $ 12,921 | $ 13,261 | $ 12,850 | $ 13,053 | $ 12,925 | $ 12,878 | $ 12,975 | $ 13,435 | $ 13,399 | $ 12,338 | $ 12,858 | $ 12,934 | $ 12,808 | $ 12,761 | $ 13,598 | $ 13,562 | $ 12,997 | $ 13,928 | $ 13,891 | $ 13,415 | $ 14,187 | $ 14,226 | $ 12,867 | $ 14,059 | $ 14,097 | $ 13,505 | $ 13,990 | $ 14,160 | $ 14,503 | $ 14,813 | $ 14,679 |
| Shareholder Report, Average Annual Return (Details) | 1 Months Ended | 2 Months Ended | 3 Months Ended | 4 Months Ended | 5 Months Ended | 6 Months Ended | 8 Months Ended | 9 Months Ended | 10 Months Ended | 11 Months Ended | 12 Months Ended | 13 Months Ended | 14 Months Ended | 15 Months Ended | 18 Months Ended | 23 Months Ended | ||||||||||||||||
| Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | |
| YieldMax AMD Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 25.62% | 16.25% | ||||||||||||||||||||||||||||||
| YieldMax ABNB Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | (7.19%) | |||||||||||||||||||||||||||||||
| YieldMax AI Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | (30.62%) | |||||||||||||||||||||||||||||||
| YieldMax AMZN Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 32.51% | 32.52% | ||||||||||||||||||||||||||||||
| YieldMax AAPL Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 21.14% | 14.65% | ||||||||||||||||||||||||||||||
| YieldMax(TM) BABA Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 15% | |||||||||||||||||||||||||||||||
| YieldMax COIN Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 62.36% | 54.82% | ||||||||||||||||||||||||||||||
| YieldMaxTM Short TSLA Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | (20.88%) | |||||||||||||||||||||||||||||||
| YieldMaxTM Short NVDA Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | (15.83%) | |||||||||||||||||||||||||||||||
| YieldMax DIS Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 10.47% | 9.87% | ||||||||||||||||||||||||||||||
| YieldMax META Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 59.90% | 47.50% | ||||||||||||||||||||||||||||||
| YieldMaxTM Short COIN Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 9.61% | |||||||||||||||||||||||||||||||
| YieldMax Gold Miners Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | (0.66%) | |||||||||||||||||||||||||||||||
| YieldMax GOOGL Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 9.81% | 4.69% | ||||||||||||||||||||||||||||||
| YieldMax JPM Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 22.35% | 14.60% | ||||||||||||||||||||||||||||||
| YieldMax MRNA Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | (38.14%) | (36.73%) | ||||||||||||||||||||||||||||||
| YieldMax MSFT Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 18.73% | 23.45% | ||||||||||||||||||||||||||||||
| YieldMax MSTR Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 188.30% | |||||||||||||||||||||||||||||||
| YieldMax NFLX Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 63.43% | 41.66% | ||||||||||||||||||||||||||||||
| YieldMax NVDA Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 144.70% | 109.58% | ||||||||||||||||||||||||||||||
| YieldMax Innovation Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 20.85% | 2.15% | ||||||||||||||||||||||||||||||
| YieldMax(TM) PLTR Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | (1.43%) | |||||||||||||||||||||||||||||||
| YieldMax PYPL Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 58.02% | 38.04% | ||||||||||||||||||||||||||||||
| YieldMax(TM) SMCI Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | (26.75%) | |||||||||||||||||||||||||||||||
| YieldMax SNOW Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | (1.67%) | |||||||||||||||||||||||||||||||
| YieldMax SQ Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 75% | 51.76% | ||||||||||||||||||||||||||||||
| YieldMax TSLA Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 9.21% | 0.65% | ||||||||||||||||||||||||||||||
| YieldMax(TM) TSM Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 5.26% | |||||||||||||||||||||||||||||||
| YieldMax Ultra Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | (7.63%) | |||||||||||||||||||||||||||||||
| YieldMax XOM Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 11.07% | 2.73% | ||||||||||||||||||||||||||||||
| YieldMaxTM Bitcoin Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | (7.26%) | |||||||||||||||||||||||||||||||
| YieldMaxTM Magnificent 7 Fund of Option Income ETFs | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 22.44% | |||||||||||||||||||||||||||||||
| YieldMaxTM Universe Fund of Option Income ETFs | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 15.11% | |||||||||||||||||||||||||||||||
| YieldMaxTM Short N100 Option Income Strategy ETF | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | (3.09%) | |||||||||||||||||||||||||||||||
| S&P 500® Total Return Index | ||||||||||||||||||||||||||||||||
| Average Annual Return [Line Items] | ||||||||||||||||||||||||||||||||
| Average Annual Return, Percent | 0.22% | 2.17% | 2.88% | 4.89% | 10.08% | 3.06% | 5.18% | 2.71% | 6.95% | 8.10% | 14.47% | 14.67% | 13.56% | 15.59% | 17% | 21.01% | 27.01% | 36.36% | 38.02% | 26.58% | 30.18% | 30.84% | 25.28% | 23.90% | 26.86% | 21.14% | 22.62% | 21.65% | 23.62% | 24.76% | 26.18% | 21.88% |
| Shareholder Report, Holdings (Details) | Oct. 31, 2024 | |
| YieldMax AMD Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 33.40% | |
| YieldMax AMD Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 24.20% | |
| YieldMax AMD Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 24.10% | |
| YieldMax AMD Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 24% | |
| YieldMax AMD Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.50% | |
| YieldMax AMD Option Income Strategy ETF | Advanced Micro Devices, Inc., Expiration: 11/15/2024; Exercise Price: $165.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.40% | |
| YieldMax AMD Option Income Strategy ETF | Advanced Micro Devices, Inc., Expiration: 11/08/2024; Exercise Price: $165.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.20% | |
| YieldMax AMD Option Income Strategy ETF | Advanced Micro Devices, Inc., Expiration: 11/08/2024; Exercise Price: $160.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [1] |
| YieldMax AMD Option Income Strategy ETF | Advanced Micro Devices, Inc., Expiration: 11/08/2024; Exercise Price: $150.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.00%) | [2] |
| YieldMax AMD Option Income Strategy ETF | Advanced Micro Devices, Inc., Expiration: 11/08/2024; Exercise Price: $157.50 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.50%) | |
| YieldMax AMD Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.50%) | |
| YieldMax AMD Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (14.70%) | |
| YieldMax AMD Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 105.70% | |
| YieldMax AMD Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.60% | |
| YieldMax AMD Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (6.30%) | |
| YieldMax ABNB Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 18% | |
| YieldMax ABNB Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 16.70% | |
| YieldMax ABNB Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 23.90% | |
| YieldMax ABNB Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 22.10% | |
| YieldMax ABNB Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.40% | |
| YieldMax ABNB Option Income Strategy ETF | Airbnb, Inc., Expiration: 12/20/2024; Exercise Price: $130.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 8.90% | |
| YieldMax ABNB Option Income Strategy ETF | Airbnb, Inc., Expiration: 11/01/2024; Exercise Price: $141.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [3] |
| YieldMax ABNB Option Income Strategy ETF | Airbnb, Inc., Expiration: 11/08/2024; Exercise Price: $155.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [3] |
| YieldMax ABNB Option Income Strategy ETF | Airbnb, Inc., Expiration: 11/08/2024; Exercise Price: $152.50 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [3] |
| YieldMax ABNB Option Income Strategy ETF | Airbnb, Inc., Expiration: 11/08/2024; Exercise Price: $142.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.00%) | [4] |
| YieldMax ABNB Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.90%) | |
| YieldMax ABNB Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (4.70%) | |
| YieldMax ABNB Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 80.70% | |
| YieldMax ABNB Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 8.90% | |
| YieldMax ABNB Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.40% | |
| YieldMax AI Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 20.80% | |
| YieldMax AI Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 27.90% | |
| YieldMax AI Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 27.90% | |
| YieldMax AI Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.90% | |
| YieldMax AI Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1% | |
| YieldMax AI Option Income Strategy ETF | C3.ai, Inc., Expiration: 11/15/2024; Exercise Price: $25.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.40% | |
| YieldMax AI Option Income Strategy ETF | C3.ai, Inc., Expiration: 11/08/2024; Exercise Price: $30.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.20% | |
| YieldMax AI Option Income Strategy ETF | C3.ai, Inc., Expiration: 11/08/2024; Exercise Price: $29.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [5] |
| YieldMax AI Option Income Strategy ETF | C3.ai, Inc., Expiration: 11/08/2024; Exercise Price: $26.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| YieldMax AI Option Income Strategy ETF | C3.ai, Inc., Expiration: 11/08/2024; Exercise Price: $27.50 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.80%) | |
| YieldMax AI Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.90%) | |
| YieldMax AI Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (5.70%) | |
| YieldMax AI Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 96.50% | |
| YieldMax AI Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.60% | |
| YieldMax AI Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.10%) | |
| YieldMax AMZN Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 16.50% | |
| YieldMax AMZN Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 28.10% | |
| YieldMax AMZN Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.80% | |
| YieldMax AMZN Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 27.60% | |
| YieldMax AMZN Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.60% | |
| YieldMax AMZN Option Income Strategy ETF | Amazon.com, Inc., Expiration: 11/15/2024; Exercise Price: $185.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5% | |
| YieldMax AMZN Option Income Strategy ETF | Amazon.com, Inc., Expiration: 11/01/2024; Exercise Price: $207.50 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.30% | |
| YieldMax AMZN Option Income Strategy ETF | Amazon.com, Inc., Expiration: 11/01/2024; Exercise Price: $195.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.50%) | |
| YieldMax AMZN Option Income Strategy ETF | Amazon.com, Inc., Expiration: 11/15/2024; Exercise Price: $185.01 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (4.10%) | |
| YieldMax AMZN Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.50%) | |
| YieldMax AMZN Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (4.10%) | |
| YieldMax AMZN Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 99% | |
| YieldMax AMZN Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.30% | |
| YieldMax AMZN Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (4.30%) | |
| YieldMax AAPL Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 31% | |
| YieldMax AAPL Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.10% | |
| YieldMax AAPL Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.10% | |
| YieldMax AAPL Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 22.40% | |
| YieldMax AAPL Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1% | |
| YieldMax AAPL Option Income Strategy ETF | Apple, Inc., Expiration: 12/20/2024; Exercise Price: $225.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.50% | |
| YieldMax AAPL Option Income Strategy ETF | Apple, Inc., Expiration: 11/01/2024; Exercise Price: $245.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.10% | |
| YieldMax AAPL Option Income Strategy ETF | Apple, Inc., Expiration: 11/01/2024; Exercise Price: $237.50 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.20%) | |
| YieldMax AAPL Option Income Strategy ETF | Apple, Inc., Expiration: 12/20/2024; Exercise Price: $225.01 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (3.60%) | |
| YieldMax AAPL Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.20%) | |
| YieldMax AAPL Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (3.60%) | |
| YieldMax AAPL Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 91.60% | |
| YieldMax AAPL Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.50% | |
| YieldMax AAPL Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.90% | |
| YieldMax(TM) BABA Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 23.10% | |
| YieldMax(TM) BABA Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 23.50% | |
| YieldMax(TM) BABA Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 23.50% | |
| YieldMax(TM) BABA Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 23.60% | |
| YieldMax(TM) BABA Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.90% | |
| YieldMax(TM) BABA Option Income Strategy ETF | Alibaba Group Holding Ltd., Expiration: 11/15/2024; Exercise Price: $110.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.90% | |
| YieldMax(TM) BABA Option Income Strategy ETF | Alibaba Group Holding Ltd., Expiration: 11/01/2024; Exercise Price: $103.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.00%) | [6] |
| YieldMax(TM) BABA Option Income Strategy ETF | Alibaba Group Holding Ltd., Expiration: 11/01/2024; Exercise Price: $100.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.00%) | [6] |
| YieldMax(TM) BABA Option Income Strategy ETF | Alibaba Group Holding Ltd., Expiration: 11/08/2024; Exercise Price: $103.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.00%) | [6] |
| YieldMax(TM) BABA Option Income Strategy ETF | Alibaba Group Holding Ltd., Expiration: 11/01/2024; Exercise Price: $101.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| YieldMax(TM) BABA Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| YieldMax(TM) BABA Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (13.00%) | |
| YieldMax(TM) BABA Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 93.70% | |
| YieldMax(TM) BABA Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.90% | |
| YieldMax(TM) BABA Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.40% | |
| YieldMax COIN Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 17.20% | |
| YieldMax COIN Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 31.20% | |
| YieldMax COIN Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 30.60% | |
| YieldMax COIN Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 30.60% | |
| YieldMax COIN Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.60% | |
| YieldMax COIN Option Income Strategy ETF | Coinbase Global, Inc., Expiration: 11/15/2024; Exercise Price: $215.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.90% | |
| YieldMax COIN Option Income Strategy ETF | Coinbase Global, Inc., Expiration: 12/20/2024; Exercise Price: $190.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.30% | |
| YieldMax COIN Option Income Strategy ETF | Coinbase Global, Inc., Expiration: 11/08/2024; Exercise Price: $220.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.20% | |
| YieldMax COIN Option Income Strategy ETF | Coinbase Global, Inc., Expiration: 11/08/2024; Exercise Price: $235.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.10% | |
| YieldMax COIN Option Income Strategy ETF | Coinbase Global, Inc., Expiration: 11/08/2024; Exercise Price: $232.50 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.10% | |
| YieldMax COIN Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.30%) | |
| YieldMax COIN Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (21.40%) | |
| YieldMax COIN Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 109.60% | |
| YieldMax COIN Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.60% | |
| YieldMax COIN Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (12.20%) | |
| YieldMaxTM Short TSLA Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.50% | |
| YieldMaxTM Short TSLA Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 24.10% | |
| YieldMaxTM Short TSLA Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 24.10% | |
| YieldMaxTM Short TSLA Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 24.90% | |
| YieldMaxTM Short TSLA Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 9.20% | |
| YieldMaxTM Short TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 12/20/2024; Exercise Price: $220.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.60% | |
| YieldMaxTM Short TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 11/08/2024; Exercise Price: $225.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.10% | |
| YieldMaxTM Short TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 11/01/2024; Exercise Price: $247.50 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.10% | |
| YieldMaxTM Short TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 11/01/2024; Exercise Price: $235.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [7] |
| YieldMaxTM Short TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 11/08/2024; Exercise Price: $245.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.40%) | |
| YieldMaxTM Short TSLA Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (14.90%) | |
| YieldMaxTM Short TSLA Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.10%) | |
| YieldMaxTM Short TSLA Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 92.60% | |
| YieldMaxTM Short TSLA Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.30% | |
| YieldMaxTM Short TSLA Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.30% | |
| YieldMaxTM Short TSLA Option Income Strategy ETF | Purchased Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.80% | |
| YieldMaxTM Short NVDA Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 27.70% | |
| YieldMaxTM Short NVDA Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 27.60% | |
| YieldMaxTM Short NVDA Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 27.70% | |
| YieldMaxTM Short NVDA Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 27.70% | |
| YieldMaxTM Short NVDA Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.90% | |
| YieldMaxTM Short NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 11/08/2024; Exercise Price: $120.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.60% | |
| YieldMaxTM Short NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 11/15/2024; Exercise Price: $107.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.30% | |
| YieldMaxTM Short NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 11/15/2024; Exercise Price: $160.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.20% | |
| YieldMaxTM Short NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 11/08/2024; Exercise Price: $128.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.80%) | |
| YieldMaxTM Short NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 11/15/2024; Exercise Price: $107.02 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (18.00%) | |
| YieldMaxTM Short NVDA Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (18.00%) | |
| YieldMaxTM Short NVDA Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.80%) | |
| YieldMaxTM Short NVDA Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 110.70% | |
| YieldMaxTM Short NVDA Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.20% | |
| YieldMaxTM Short NVDA Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (11.80%) | |
| YieldMaxTM Short NVDA Option Income Strategy ETF | Purchased Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.90% | |
| YieldMax DIS Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 18.10% | |
| YieldMax DIS Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 17.70% | |
| YieldMax DIS Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 17.70% | |
| YieldMax DIS Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 30.80% | |
| YieldMax DIS Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.90% | |
| YieldMax DIS Option Income Strategy ETF | Walt Disney Co., Expiration: 12/20/2024; Exercise Price: $90.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 9.10% | |
| YieldMax DIS Option Income Strategy ETF | Walt Disney Co., Expiration: 11/01/2024; Exercise Price: $99.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [8] |
| YieldMax DIS Option Income Strategy ETF | Walt Disney Co., Expiration: 11/08/2024; Exercise Price: $99.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.00%) | [9] |
| YieldMax DIS Option Income Strategy ETF | Walt Disney Co., Expiration: 11/01/2024; Exercise Price: $97.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.30%) | |
| YieldMax DIS Option Income Strategy ETF | Walt Disney Co., Expiration: 12/20/2024; Exercise Price: $90.01 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (2.60%) | |
| YieldMax DIS Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.30%) | |
| YieldMax DIS Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (2.60%) | |
| YieldMax DIS Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 84.30% | |
| YieldMax DIS Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 9.10% | |
| YieldMax DIS Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.60% | |
| YieldMax META Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 20.90% | |
| YieldMax META Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 22.10% | |
| YieldMax META Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 22.10% | |
| YieldMax META Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 22.10% | |
| YieldMax META Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.20% | |
| YieldMax META Option Income Strategy ETF | Meta Platforms, Inc., Expiration: 12/20/2024; Exercise Price: $555.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.30% | |
| YieldMax META Option Income Strategy ETF | Meta Platforms, Inc., Expiration: 11/08/2024; Exercise Price: $645.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.10% | |
| YieldMax META Option Income Strategy ETF | Meta Platforms, Inc., Expiration: 11/08/2024; Exercise Price: $592.50 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| YieldMax META Option Income Strategy ETF | Meta Platforms, Inc., Expiration: 11/08/2024; Exercise Price: $600.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.50%) | |
| YieldMax META Option Income Strategy ETF | Meta Platforms, Inc., Expiration: 12/20/2024; Exercise Price: $555.01 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (3.60%) | |
| YieldMax META Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.60%) | |
| YieldMax META Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (3.60%) | |
| YieldMax META Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 87.20% | |
| YieldMax META Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.40% | |
| YieldMax META Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.40% | |
| YieldMaxTM Short COIN Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 27.30% | |
| YieldMaxTM Short COIN Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 27.10% | |
| YieldMaxTM Short COIN Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 27.20% | |
| YieldMaxTM Short COIN Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 27.30% | |
| YieldMaxTM Short COIN Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.30% | |
| YieldMaxTM Short COIN Option Income Strategy ETF | Coinbase Global, Inc., Expiration: 11/01/2024; Exercise Price: $215.50 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.70% | |
| YieldMaxTM Short COIN Option Income Strategy ETF | Coinbase Global, Inc., Expiration: 11/01/2024; Exercise Price: $172.50 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.70% | |
| YieldMaxTM Short COIN Option Income Strategy ETF | Coinbase Global, Inc., Expiration: 12/20/2024; Exercise Price: $330.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.50% | |
| YieldMaxTM Short COIN Option Income Strategy ETF | Coinbase Global, Inc., Expiration: 11/01/2024; Exercise Price: $187.50 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.40%) | |
| YieldMaxTM Short COIN Option Income Strategy ETF | Coinbase Global, Inc., Expiration: 11/15/2024; Exercise Price: $215.02 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.80%) | |
| YieldMaxTM Short COIN Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.80%) | |
| YieldMaxTM Short COIN Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (7.90%) | |
| YieldMaxTM Short COIN Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 108.90% | |
| YieldMaxTM Short COIN Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.50% | |
| YieldMaxTM Short COIN Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (29.80%) | |
| YieldMaxTM Short COIN Option Income Strategy ETF | Purchased Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 20.40% | |
| YieldMax Gold Miners Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 23.10% | |
| YieldMax Gold Miners Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 22.90% | |
| YieldMax Gold Miners Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 23% | |
| YieldMax Gold Miners Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 23.10% | |
| YieldMax Gold Miners Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1% | |
| YieldMax Gold Miners Option Income Strategy ETF | Vaneck Gold Miners ETF, Expiration: 11/15/2024; Exercise Price: $40.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.70% | |
| YieldMax Gold Miners Option Income Strategy ETF | Vaneck Gold Miners ETF, Expiration: 11/08/2024; Exercise Price: $42.50 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.90% | |
| YieldMax Gold Miners Option Income Strategy ETF | Vaneck Gold Miners ETF, Expiration: 11/08/2024; Exercise Price: $41.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (2.00%) | |
| YieldMax Gold Miners Option Income Strategy ETF | Vaneck Gold Miners ETF, Expiration: 11/15/2024; Exercise Price: $40.01 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (2.70%) | |
| YieldMax Gold Miners Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (2.00%) | |
| YieldMax Gold Miners Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (2.70%) | |
| YieldMax Gold Miners Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 92.10% | |
| YieldMax Gold Miners Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.60% | |
| YieldMax Gold Miners Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.30% | |
| YieldMax GOOGL Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 16.90% | |
| YieldMax GOOGL Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 24.10% | |
| YieldMax GOOGL Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 25% | |
| YieldMax GOOGL Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 24.60% | |
| YieldMax GOOGL Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4% | |
| YieldMax GOOGL Option Income Strategy ETF | Alphabet, Inc., Expiration: 12/20/2024; Exercise Price: $165.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.90% | |
| YieldMax GOOGL Option Income Strategy ETF | Alphabet, Inc., Expiration: 11/08/2024; Exercise Price: $195.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.10% | |
| YieldMax GOOGL Option Income Strategy ETF | Alphabet, Inc., Expiration: 11/08/2024; Exercise Price: $185.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| YieldMax GOOGL Option Income Strategy ETF | Alphabet, Inc., Expiration: 12/20/2024; Exercise Price: $165.01 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (2.40%) | |
| YieldMax GOOGL Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| YieldMax GOOGL Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (2.40%) | |
| YieldMax GOOGL Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 90.60% | |
| YieldMax GOOGL Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7% | |
| YieldMax GOOGL Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.40% | |
| YieldMax JPM Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 25.10% | |
| YieldMax JPM Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 22.60% | |
| YieldMax JPM Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 22.60% | |
| YieldMax JPM Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 23.80% | |
| YieldMax JPM Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | |
| YieldMax JPM Option Income Strategy ETF | JPMorgan Chase & Co., Expiration: 12/20/2024; Exercise Price: $225.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.30% | |
| YieldMax JPM Option Income Strategy ETF | JPMorgan Chase & Co., Expiration: 11/08/2024; Exercise Price: $230.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.00%) | [10] |
| YieldMax JPM Option Income Strategy ETF | JPMorgan Chase & Co., Expiration: 11/01/2024; Exercise Price: $225.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| YieldMax JPM Option Income Strategy ETF | JPMorgan Chase & Co., Expiration: 12/20/2024; Exercise Price: $225.01 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (4.00%) | |
| YieldMax JPM Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| YieldMax JPM Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (4.00%) | |
| YieldMax JPM Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 94.10% | |
| YieldMax JPM Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.30% | |
| YieldMax JPM Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.60% | |
| YieldMax MRNA Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 22.40% | |
| YieldMax MRNA Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26% | |
| YieldMax MRNA Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.10% | |
| YieldMax MRNA Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 17% | |
| YieldMax MRNA Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.10% | |
| YieldMax MRNA Option Income Strategy ETF | Moderna, Inc., Expiration: 11/15/2024; Exercise Price: $54.00 | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 9.10% | |
| YieldMax MRNA Option Income Strategy ETF | Moderna, Inc., Expiration: 11/01/2024; Exercise Price: $59.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [11] |
| YieldMax MRNA Option Income Strategy ETF | Moderna, Inc., Expiration: 11/01/2024; Exercise Price: $60.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [11] |
| YieldMax MRNA Option Income Strategy ETF | Moderna, Inc., Expiration: 11/01/2024; Exercise Price: $55.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.70%) | |
| YieldMax MRNA Option Income Strategy ETF | Moderna, Inc., Expiration: 11/08/2024; Exercise Price: $61.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| YieldMax MRNA Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.80%) | |
| YieldMax MRNA Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (8.20%) | |
| YieldMax MRNA Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 91.50% | |
| YieldMax MRNA Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 9.10% | |
| YieldMax MRNA Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.60%) | |
| YieldMax MSFT Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 20.90% | |
| YieldMax MSFT Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 27.10% | |
| YieldMax MSFT Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 27.10% | |
| YieldMax MSFT Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 27.30% | |
| YieldMax MSFT Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.90% | |
| YieldMax MSFT Option Income Strategy ETF | Microsoft Corp., Expiration: 11/15/2024; Exercise Price: $430.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.40% | |
| YieldMax MSFT Option Income Strategy ETF | Microsoft Corp., Expiration: 11/08/2024; Exercise Price: $437.50 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.10% | |
| YieldMax MSFT Option Income Strategy ETF | Microsoft Corp., Expiration: 11/01/2024; Exercise Price: $465.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [12] |
| YieldMax MSFT Option Income Strategy ETF | Microsoft Corp., Expiration: 11/01/2024; Exercise Price: $452.50 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [12] |
| YieldMax MSFT Option Income Strategy ETF | Microsoft Corp., Expiration: 11/08/2024; Exercise Price: $422.50 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.30%) | |
| YieldMax MSFT Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.30%) | |
| YieldMax MSFT Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (6.00%) | |
| YieldMax MSFT Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 102.40% | |
| YieldMax MSFT Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.50% | |
| YieldMax MSFT Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (2.90%) | |
| YieldMax MSTR Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.10% | |
| YieldMax MSTR Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [13] |
| YieldMax MSTR Option Income Strategy ETF | MicroStrategy, Inc., Expiration: 11/15/2024; Exercise Price: $255.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.20% | |
| YieldMax MSTR Option Income Strategy ETF | MicroStrategy, Inc., Expiration: 11/01/2024; Exercise Price: $290.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [13] |
| YieldMax MSTR Option Income Strategy ETF | MicroStrategy, Inc., Expiration: 11/01/2024; Exercise Price: $295.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [13] |
| YieldMax MSTR Option Income Strategy ETF | MicroStrategy, Inc., Expiration: 11/01/2024; Exercise Price: $250.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.00%) | [14] |
| YieldMax MSTR Option Income Strategy ETF | MicroStrategy, Inc., Expiration: 11/01/2024; Exercise Price: $260.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.20%) | |
| YieldMax MSTR Option Income Strategy ETF | MicroStrategy, Inc., Expiration: 11/01/2024; Exercise Price: $255.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.40%) | |
| YieldMax MSTR Option Income Strategy ETF | MicroStrategy, Inc., Expiration: 11/15/2024; Exercise Price: $255.01 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (11.00%) | |
| YieldMax MSTR Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.60%) | |
| YieldMax MSTR Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (11.00%) | |
| YieldMax MSTR Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.10% | |
| YieldMax MSTR Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.20% | |
| YieldMax MSTR Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 91.70% | |
| YieldMax NFLX Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 32.40% | |
| YieldMax NFLX Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 20.50% | |
| YieldMax NFLX Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 20.50% | |
| YieldMax NFLX Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 23.90% | |
| YieldMax NFLX Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.90% | |
| YieldMax NFLX Option Income Strategy ETF | Netflix, Inc., Expiration: 12/20/2024; Exercise Price: $755.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.60% | |
| YieldMax NFLX Option Income Strategy ETF | Netflix, Inc., Expiration: 11/01/2024; Exercise Price: $770.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| YieldMax NFLX Option Income Strategy ETF | Netflix, Inc., Expiration: 12/20/2024; Exercise Price: $755.01 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (3.60%) | |
| YieldMax NFLX Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| YieldMax NFLX Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (3.60%) | |
| YieldMax NFLX Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 97.30% | |
| YieldMax NFLX Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.60% | |
| YieldMax NFLX Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.90%) | |
| YieldMax NVDA Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 11.40% | |
| YieldMax NVDA Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 27.20% | |
| YieldMax NVDA Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.40% | |
| YieldMax NVDA Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.80% | |
| YieldMax NVDA Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | |
| YieldMax NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 12/20/2024; Exercise Price: $130.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10% | |
| YieldMax NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 11/08/2024; Exercise Price: $147.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.40% | |
| YieldMax NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 11/08/2024; Exercise Price: $149.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [15] |
| YieldMax NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 11/08/2024; Exercise Price: $139.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| YieldMax NVDA Option Income Strategy ETF | NVIDIA Corp., Expiration: 11/08/2024; Exercise Price: $140.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.20%) | |
| YieldMax NVDA Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.30%) | |
| YieldMax NVDA Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (7.00%) | |
| YieldMax NVDA Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 91.80% | |
| YieldMax NVDA Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.40% | |
| YieldMax NVDA Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (2.20%) | |
| YieldMax Innovation Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 27.80% | |
| YieldMax Innovation Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 22.30% | |
| YieldMax Innovation Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 22.40% | |
| YieldMax Innovation Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 22.30% | |
| YieldMax Innovation Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.80% | |
| YieldMax Innovation Option Income Strategy ETF | ARK Innovation ETF, Expiration: 12/20/2024; Exercise Price: $45.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.90% | |
| YieldMax Innovation Option Income Strategy ETF | ARK Innovation ETF, Expiration: 11/08/2024; Exercise Price: $53.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.10% | |
| YieldMax Innovation Option Income Strategy ETF | ARK Innovation ETF, Expiration: 11/08/2024; Exercise Price: $50.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.40%) | |
| YieldMax Innovation Option Income Strategy ETF | ARK Innovation ETF, Expiration: 12/20/2024; Exercise Price: $45.01 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (4.60%) | |
| YieldMax Innovation Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.40%) | |
| YieldMax Innovation Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (4.60%) | |
| YieldMax Innovation Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 94.80% | |
| YieldMax Innovation Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7% | |
| YieldMax Innovation Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.80%) | |
| YieldMax(TM) PLTR Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 18.10% | |
| YieldMax(TM) PLTR Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 18% | |
| YieldMax(TM) PLTR Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 18.10% | |
| YieldMax(TM) PLTR Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 18.10% | |
| YieldMax(TM) PLTR Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.80% | |
| YieldMax(TM) PLTR Option Income Strategy ETF | Palantir Technologies, Inc., Expiration: 12/20/2024; Exercise Price: $39.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 13.40% | |
| YieldMax(TM) PLTR Option Income Strategy ETF | Palantir Technologies, Inc., Expiration: 11/08/2024; Exercise Price: $47.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.50% | |
| YieldMax(TM) PLTR Option Income Strategy ETF | Palantir Technologies, Inc., Expiration: 11/08/2024; Exercise Price: $43.50 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (4.90%) | |
| YieldMax(TM) PLTR Option Income Strategy ETF | Palantir Technologies, Inc., Expiration: 12/20/2024; Exercise Price: $39.01 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (6.30%) | |
| YieldMax(TM) PLTR Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (4.90%) | |
| YieldMax(TM) PLTR Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (6.30%) | |
| YieldMax(TM) PLTR Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 72.30% | |
| YieldMax(TM) PLTR Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 15.90% | |
| YieldMax(TM) PLTR Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 11.80% | |
| YieldMax PYPL Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 9.60% | |
| YieldMax PYPL Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.60% | |
| YieldMax PYPL Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 25.70% | |
| YieldMax PYPL Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 27.20% | |
| YieldMax PYPL Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.30% | |
| YieldMax PYPL Option Income Strategy ETF | PayPal Holdings, Inc., Expiration: 12/20/2024; Exercise Price: $75.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.90% | |
| YieldMax PYPL Option Income Strategy ETF | PayPal Holdings, Inc., Expiration: 11/08/2024; Exercise Price: $83.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.80% | |
| YieldMax PYPL Option Income Strategy ETF | PayPal Holdings, Inc., Expiration: 11/01/2024; Exercise Price: $91.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [16] |
| YieldMax PYPL Option Income Strategy ETF | PayPal Holdings, Inc., Expiration: 11/08/2024; Exercise Price: $80.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.90%) | |
| YieldMax PYPL Option Income Strategy ETF | PayPal Holdings, Inc., Expiration: 12/20/2024; Exercise Price: $75.01 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (2.30%) | |
| YieldMax PYPL Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.90%) | |
| YieldMax PYPL Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (2.30%) | |
| YieldMax PYPL Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 89.10% | |
| YieldMax PYPL Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 8.70% | |
| YieldMax PYPL Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.20% | |
| YieldMax(TM) SMCI Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.50% | |
| YieldMax(TM) SMCI Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.40% | |
| YieldMax(TM) SMCI Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.40% | |
| YieldMax(TM) SMCI Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.40% | |
| YieldMax(TM) SMCI Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 50.80% | |
| YieldMax(TM) SMCI Option Income Strategy ETF | Super Micro Computer, Inc., Expiration: 11/08/2024; Exercise Price: $33.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6% | |
| YieldMax(TM) SMCI Option Income Strategy ETF | Super Micro Computer, Inc., Expiration: 11/01/2024; Exercise Price: $58.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [17] |
| YieldMax(TM) SMCI Option Income Strategy ETF | Super Micro Computer, Inc., Expiration: 11/01/2024; Exercise Price: $57.50 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [17] |
| YieldMax(TM) SMCI Option Income Strategy ETF | Super Micro Computer, Inc., Expiration: 11/01/2024; Exercise Price: $38.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.00%) | [18] |
| YieldMax(TM) SMCI Option Income Strategy ETF | Super Micro Computer, Inc., Expiration: 11/01/2024; Exercise Price: $50.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| YieldMax(TM) SMCI Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| YieldMax(TM) SMCI Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (17.10%) | |
| YieldMax(TM) SMCI Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 77.70% | |
| YieldMax(TM) SMCI Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6% | |
| YieldMax(TM) SMCI Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 16.30% | |
| YieldMax SNOW Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 17.70% | |
| YieldMax SNOW Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.30% | |
| YieldMax SNOW Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 24.70% | |
| YieldMax SNOW Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 21.50% | |
| YieldMax SNOW Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 8.90% | |
| YieldMax SNOW Option Income Strategy ETF | Snowflake, Inc., Expiration: 12/20/2024; Exercise Price: $125.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.90% | |
| YieldMax SNOW Option Income Strategy ETF | Snowflake, Inc., Expiration: 11/08/2024; Exercise Price: $123.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.10% | |
| YieldMax SNOW Option Income Strategy ETF | Snowflake, Inc., Expiration: 11/01/2024; Exercise Price: $124.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.10% | |
| YieldMax SNOW Option Income Strategy ETF | Snowflake, Inc., Expiration: 11/01/2024; Exercise Price: $122.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [19] |
| YieldMax SNOW Option Income Strategy ETF | Snowflake, Inc., Expiration: 11/01/2024; Exercise Price: $123.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.00%) | [20] |
| YieldMax SNOW Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.60%) | |
| YieldMax SNOW Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (13.90%) | |
| YieldMax SNOW Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 90.20% | |
| YieldMax SNOW Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.10% | |
| YieldMax SNOW Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.70% | |
| YieldMax SQ Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 9.70% | |
| YieldMax SQ Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.60% | |
| YieldMax SQ Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 24.90% | |
| YieldMax SQ Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.20% | |
| YieldMax SQ Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | |
| YieldMax SQ Option Income Strategy ETF | Block, Inc., Expiration: 12/20/2024; Exercise Price: $65.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 14.20% | |
| YieldMax SQ Option Income Strategy ETF | Block, Inc., Expiration: 11/01/2024; Exercise Price: $80.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [21] |
| YieldMax SQ Option Income Strategy ETF | Block, Inc., Expiration: 11/01/2024; Exercise Price: $78.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [21] |
| YieldMax SQ Option Income Strategy ETF | Block, Inc., Expiration: 11/01/2024; Exercise Price: $74.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.30%) | |
| YieldMax SQ Option Income Strategy ETF | Block, Inc., Expiration: 12/20/2024; Exercise Price: $65.01 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (3.80%) | |
| YieldMax SQ Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.30%) | |
| YieldMax SQ Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (3.80%) | |
| YieldMax SQ Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 87.40% | |
| YieldMax SQ Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 14.20% | |
| YieldMax SQ Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.60%) | |
| YieldMax TSLA Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 27.40% | |
| YieldMax TSLA Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.50% | |
| YieldMax TSLA Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.50% | |
| YieldMax TSLA Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.10% | |
| YieldMax TSLA Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.10% | |
| YieldMax TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 11/15/2024; Exercise Price: $255.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.70% | |
| YieldMax TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 11/08/2024; Exercise Price: $275.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.70% | |
| YieldMax TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 11/15/2024; Exercise Price: $245.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.20% | |
| YieldMax TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 11/15/2024; Exercise Price: $245.01 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.10%) | |
| YieldMax TSLA Option Income Strategy ETF | Tesla, Inc., Expiration: 11/08/2024; Exercise Price: $260.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (2.00%) | |
| YieldMax TSLA Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (2.00%) | |
| YieldMax TSLA Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (5.70%) | |
| YieldMax TSLA Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 106.50% | |
| YieldMax TSLA Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.60% | |
| YieldMax TSLA Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (11.10%) | |
| YieldMax(TM) TSM Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 17.20% | |
| YieldMax(TM) TSM Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 17.10% | |
| YieldMax(TM) TSM Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 17.10% | |
| YieldMax(TM) TSM Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 17.20% | |
| YieldMax(TM) TSM Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 22.10% | |
| YieldMax(TM) TSM Option Income Strategy ETF | Taiwan Semiconductor Manufacturing Co. Ltd., Expiration: 11/15/2024; Exercise Price: $185.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.50% | |
| YieldMax(TM) TSM Option Income Strategy ETF | Taiwan Semiconductor Manufacturing Co. Ltd., Expiration: 11/08/2024; Exercise Price: $207.50 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.40% | |
| YieldMax(TM) TSM Option Income Strategy ETF | Taiwan Semiconductor Manufacturing Co. Ltd., Expiration: 11/08/2024; Exercise Price: $205.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.10% | |
| YieldMax(TM) TSM Option Income Strategy ETF | Taiwan Semiconductor Manufacturing Co. Ltd., Expiration: 11/08/2024; Exercise Price: $210.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.10% | |
| YieldMax(TM) TSM Option Income Strategy ETF | Taiwan Semiconductor Manufacturing Co. Ltd., Expiration: 11/08/2024; Exercise Price: $200.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.20%) | |
| YieldMax(TM) TSM Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.60%) | |
| YieldMax(TM) TSM Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (2.40%) | |
| YieldMax(TM) TSM Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 68.60% | |
| YieldMax(TM) TSM Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.10% | |
| YieldMax(TM) TSM Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 25.30% | |
| YieldMax Ultra Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 14.50% | |
| YieldMax Ultra Option Income Strategy ETF | NVIDIA Corp. [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.40% | |
| YieldMax Ultra Option Income Strategy ETF | ProShares UltraPro QQQ [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.40% | |
| YieldMax Ultra Option Income Strategy ETF | Direxion Daily Small Cap Bull 3X Shares [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.30% | |
| YieldMax Ultra Option Income Strategy ETF | NuScale Power Corp. [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.70% | |
| YieldMax Ultra Option Income Strategy ETF | MARA Holdings, Inc. [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.50% | |
| YieldMax Ultra Option Income Strategy ETF | Unity Software, Inc. [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.40% | |
| YieldMax Ultra Option Income Strategy ETF | Redfin Corp. [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.30% | |
| YieldMax Ultra Option Income Strategy ETF | Palantir Technologies, Inc. [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.20% | |
| YieldMax Ultra Option Income Strategy ETF | MicroStrategy, Inc. [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4% | |
| YieldMax Ultra Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (3.20%) | |
| YieldMax Ultra Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.20%) | |
| YieldMax Ultra Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.90% | |
| YieldMax Ultra Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 13.20% | |
| YieldMax Ultra Option Income Strategy ETF | Purchased Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2% | |
| YieldMax Ultra Option Income Strategy ETF | Common Stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 69.10% | |
| YieldMax Ultra Option Income Strategy ETF | Exchange Traded Funds [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 14.80% | |
| YieldMax XOM Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 15.20% | |
| YieldMax XOM Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 26.40% | |
| YieldMax XOM Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 24% | |
| YieldMax XOM Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 24.80% | |
| YieldMax XOM Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.10% | |
| YieldMax XOM Option Income Strategy ETF | Exxon Mobil Corp., Expiration: 11/15/2024; Exercise Price: $115.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.40% | |
| YieldMax XOM Option Income Strategy ETF | Exxon Mobil Corp., Expiration: 11/01/2024; Exercise Price: $124.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.10% | |
| YieldMax XOM Option Income Strategy ETF | Exxon Mobil Corp., Expiration: 11/08/2024; Exercise Price: $122.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [22] |
| YieldMax XOM Option Income Strategy ETF | Exxon Mobil Corp., Expiration: 11/01/2024; Exercise Price: $125.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [22] |
| YieldMax XOM Option Income Strategy ETF | Exxon Mobil Corp., Expiration: 11/08/2024; Exercise Price: $119.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.00%) | [23] |
| YieldMax XOM Option Income Strategy ETF | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.30%) | |
| YieldMax XOM Option Income Strategy ETF | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (2.00%) | |
| YieldMax XOM Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 90.40% | |
| YieldMax XOM Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.10% | |
| YieldMax XOM Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.50% | |
| YieldMaxTM Bitcoin Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 22.70% | |
| YieldMaxTM Bitcoin Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.20% | |
| YieldMaxTM Bitcoin Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.30% | |
| YieldMaxTM Bitcoin Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 24.60% | |
| YieldMaxTM Bitcoin Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.30% | |
| YieldMaxTM Bitcoin Option Income Strategy ETF | ProShares Bitcoin ETF, Expiration: 11/15/2024; Exercise Price: $26.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.20% | |
| YieldMaxTM Bitcoin Option Income Strategy ETF | ProShares Bitcoin ETF, Expiration: 11/08/2024; Exercise Price: $21.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.00%) | |
| YieldMaxTM Bitcoin Option Income Strategy ETF | Proshares Bitcoin ETF, Expiration: 11/15/2024; Exercise Price: $26.01 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (32.60%) | |
| YieldMaxTM Bitcoin Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.00%) | |
| YieldMaxTM Bitcoin Option Income Strategy ETF | Purchased Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (32.60%) | |
| YieldMaxTM Bitcoin Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 105.80% | |
| YieldMaxTM Bitcoin Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.20% | |
| YieldMaxTM Bitcoin Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (6.00%) | |
| YieldMaxTM Magnificent 7 Fund of Option Income ETFs | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1% | |
| YieldMaxTM Magnificent 7 Fund of Option Income ETFs | Yieldmax TSLA Option Income Strategy ETF [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 15.10% | |
| YieldMaxTM Magnificent 7 Fund of Option Income ETFs | Yieldmax META Option Income Strategy ETF [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 14.70% | |
| YieldMaxTM Magnificent 7 Fund of Option Income ETFs | YieldMax GOOGL Option Income Strategy ETF [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 14.20% | |
| YieldMaxTM Magnificent 7 Fund of Option Income ETFs | YieldMax MSFT Option Income Strategy ETF [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 14% | |
| YieldMaxTM Magnificent 7 Fund of Option Income ETFs | Yieldmax AMZN Option Income Strategy ETF [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 13.60% | |
| YieldMaxTM Magnificent 7 Fund of Option Income ETFs | YieldMax NVDA Option Income Strategy ETF [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 13.60% | |
| YieldMaxTM Magnificent 7 Fund of Option Income ETFs | YieldMax AAPL Option Income Strategy ETF [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 13.50% | |
| YieldMaxTM Magnificent 7 Fund of Option Income ETFs | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.30% | |
| YieldMaxTM Magnificent 7 Fund of Option Income ETFs | Exchange Traded Funds [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 98.70% | |
| YieldMaxTM Universe Fund of Option Income ETFs | Yieldmax TSLA Option Income Strategy ETF [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.30% | |
| YieldMaxTM Universe Fund of Option Income ETFs | Yieldmax META Option Income Strategy ETF [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.20% | |
| YieldMaxTM Universe Fund of Option Income ETFs | YieldMax GOOGL Option Income Strategy ETF [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4% | |
| YieldMaxTM Universe Fund of Option Income ETFs | First American Government Obligations Fund - Class X, 4.78% [Member] [Default Label] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.50% | |
| YieldMaxTM Universe Fund of Option Income ETFs | YieldMax MRNA Option Income Strategy ETF [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.20% | |
| YieldMaxTM Universe Fund of Option Income ETFs | YieldMax JPM Option Income Strategy ETF [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.10% | |
| YieldMaxTM Universe Fund of Option Income ETFs | YieldMax NFLX Option Income Strategy ETF [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4% | |
| YieldMaxTM Universe Fund of Option Income ETFs | YieldMax ABNB Option Income Strategy ETF [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4% | |
| YieldMaxTM Universe Fund of Option Income ETFs | YieldMax PYPL Option Income Strategy ETF [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4% | |
| YieldMaxTM Universe Fund of Option Income ETFs | YieldMax BABA Option Income Strategy ETF [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4% | |
| YieldMaxTM Universe Fund of Option Income ETFs | Written Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.00%) | [24] |
| YieldMaxTM Universe Fund of Option Income ETFs | Written Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.70%) | |
| YieldMaxTM Universe Fund of Option Income ETFs | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [25] |
| YieldMaxTM Universe Fund of Option Income ETFs | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 5.80% | |
| YieldMaxTM Universe Fund of Option Income ETFs | Exchange Traded Funds [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 94.20% | |
| YieldMaxTM Short N100 Option Income Strategy ETF | U.S. Treasury Note/Bond - 0.75%, 11/15/2024 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 24.10% | |
| YieldMaxTM Short N100 Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.88%, 01/15/2026 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 25.20% | |
| YieldMaxTM Short N100 Option Income Strategy ETF | U.S. Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 25.20% | |
| YieldMaxTM Short N100 Option Income Strategy ETF | U.S. Treasury Note/Bond - 2.63%, 04/15/2025 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 25.30% | |
| YieldMaxTM Short N100 Option Income Strategy ETF | First American Government Obligations Fund - Class X, 4.78% [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.90% | |
| YieldMaxTM Short N100 Option Income Strategy ETF | Invesco QQQ Trust Series 1, Expiration: 11/15/2024; Exercise Price: $450.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.40% | |
| YieldMaxTM Short N100 Option Income Strategy ETF | Invesco QQQ Trust Series 1, Expiration: 11/15/2024; Exercise Price: $645.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [26] |
| YieldMaxTM Short N100 Option Income Strategy ETF | Invesco QQQ Trust Series 1, Expiration: 11/15/2024; Exercise Price: $600.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [26] |
| YieldMaxTM Short N100 Option Income Strategy ETF | Invesco QQQ Trust Series 1, Expiration: 11/15/2024; Exercise Price: $585.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [26] |
| YieldMaxTM Short N100 Option Income Strategy ETF | Invesco QQQ Trust Series 1, Expiration: 11/01/2024; Exercise Price: $489.00 [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.00%) | |
| YieldMaxTM Short N100 Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (7.40%) | |
| YieldMaxTM Short N100 Option Income Strategy ETF | Purchased Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (1.00%) | |
| YieldMaxTM Short N100 Option Income Strategy ETF | US Treasury Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 99.80% | |
| YieldMaxTM Short N100 Option Income Strategy ETF | Purchased Call Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0% | [27] |
| YieldMaxTM Short N100 Option Income Strategy ETF | Cash and Cash Equivalents [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | (0.20%) | |
| YieldMaxTM Short N100 Option Income Strategy ETF | Purchased Put Options [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.40% | |
| [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. | ||
