| Form N-CSR Cover | 6 Months Ended |
| Aug. 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | Tidal ETF Trust |
| Entity Central Index Key | 0001742912 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Aug. 31, 2024 |
| Shareholder Report | 6 Months Ended |
| Aug. 31, 2024 USD ($) Holdings | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | Tidal ETF Trust |
| Entity Central Index Key | 0001742912 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Aug. 31, 2024 |
| SoFi Next 500 ETF | |
| Shareholder Report [Line Items] | |
| Fund Name | SoFi Next 500 ETF |
| Class Name | SoFi Next 500 ETF |
| Trading Symbol | SFYX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.sofi.com/invest/etfs/ (877) 358-0096 |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | (877) 358-0096 |
| Additional Information Website | www.sofi.com/invest/etfs/ |
| Expenses [Text Block] | What were the Fund costs for the past six months? (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 SoFi Next 500 ETF $ 0 0.00 |
| Expenses Paid, Amount | $ 0 |
| Expense Ratio, Percent | 0% |
| Net Assets | $ 93,395,000 |
| Holdings Count | Holdings | 498 |
| Investment Company, Portfolio Turnover | 22% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of August 31, 2024 ) Fund Size (Thousands) $93,395 Number of Holdings 498 Portfolio Turnover 22% |
| Holdings [Text Block] | Security Type (% of net assets) Sector % Financial 0.217 Consumer, Non-cyclical 0.190 Industrial 0.188 Consumer, Cyclical 0.146 Technology 0.122 Energy 0.053 Communications 0.041 Basic Materials 0.021 Utilities 0.020 Cash & Cash Equivalents 0.002 |
| Largest Holdings [Text Block] | What did the Fund invest in? (as of August 31, 2024 ) Top Ten Holdings (% of net assets) Dynatrace, Inc. 0.87 Blue Owl Capital, Inc. - Class A 0.79 TechnipFMC PLC 0.76 Nutanix, Inc. - Class A 0.76 Pure Storage, Inc. - Class A 0.76 FTAI Aviation Ltd. 0.69 Regal Rexnord Corp. 0.64 Molson Coors Brewing Co. - Class B 0.62 Interactive Brokers Group, Inc. - Class A 0.61 Kimco Realty Corp. 0.59 |
| Material Fund Change [Text Block] | How has the Fund changed? Tidal Investments LLC (the ''Adviser'') has contractually agreed to waive a portion of its Management Fees for the Fund until at least June 30, 2025, such that Management Fees do not exceed 0.06% of the Fund’s average daily net assets. This agreement may be terminated only by, or with the consent of, the Trust’s Board of Trustees, on behalf of the Fund, upon sixty (60) days’ written notice to the Adviser. This agreement may not be terminated by the Adviser without the consent of the Board of Trustees. In addition, the Adviser has voluntarily agreed to waive its full Management Fees through January 31, 2025. The additional voluntary fee waiver may fluctuate or be discontinued by the Adviser at any time with prior notice to shareholders; however, the Adviser currently anticipates maintaining the waiver through January 31, 2025. |
| Material Fund Change Expenses [Text Block] | Tidal Investments LLC (the ''Adviser'') has contractually agreed to waive a portion of its Management Fees for the Fund until at least June 30, 2025, such that Management Fees do not exceed 0.06% of the Fund’s average daily net assets. This agreement may be terminated only by, or with the consent of, the Trust’s Board of Trustees, on behalf of the Fund, upon sixty (60) days’ written notice to the Adviser. This agreement may not be terminated by the Adviser without the consent of the Board of Trustees. In addition, the Adviser has voluntarily agreed to waive its full Management Fees through January 31, 2025. The additional voluntary fee waiver may fluctuate or be discontinued by the Adviser at any time with prior notice to shareholders; however, the Adviser currently anticipates maintaining the waiver through January 31, 2025. |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. |
| SoFi Social 50 ETF | |
| Shareholder Report [Line Items] | |
| Fund Name | SoFi Social 50 ETF |
| Class Name | SoFi Social 50 ETF |
| Trading Symbol | SFYF |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.sofi.com/invest/etfs/ (877) 358-0096 |
| Additional Information Phone Number | (877) 358-0096 |
| Additional Information Website | www.sofi.com/invest/etfs/ |
| Expenses [Text Block] | What were the Fund costs for the past six months? (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 SoFi Social 50 ETF $ 16 0.29 |
| Expenses Paid, Amount | $ 16 |
| Expense Ratio, Percent | 0.29% |
| Net Assets | $ 17,473,000 |
| Holdings Count | Holdings | 51 |
| Investment Company, Portfolio Turnover | 26% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of August 31, 2024 ) Fund Size (Thousands) $17,473 Number of Holdings 51 Portfolio Turnover 26% |
| Holdings [Text Block] | Security Type (% of net assets) Sector % Technology 0.319 Consumer, Cyclical 0.279 Communications 0.232 Financial 0.095 Consumer, Non-cyclical 0.056 Energy 0.010 Industrial 0.007 Cash & Cash Equivalents 0.002 |
| Largest Holdings [Text Block] | What did the Fund invest in? (as of August 31, 2024 ) Top Ten Holdings (% of net assets) NVIDIA Corp. 10.13 Tesla, Inc. 9.16 Palantir Technologies, Inc. - Class A 5.17 Microsoft Corp. 4.89 Amazon.com, Inc. 4.81 Apple, Inc. 4.80 Meta Platforms, Inc. - Class A 4.71 Alphabet, Inc. - Class A 4.54 Berkshire Hathaway, Inc. - Class B 3.90 Rivian Automotive, Inc. - Class A 3.85 |
| 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. |
| SoFi Enhanced Yield ETF | |
| Shareholder Report [Line Items] | |
| Fund Name | SoFi Enhanced Yield ETF |
| Class Name | SoFi Enhanced Yield ETF |
| Trading Symbol | THTA |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.sofi.com/invest/etfs/ (877) 358-0096 |
| Additional Information Phone Number | (877) 358-0096 |
| Additional Information Website | www.sofi.com/invest/etfs/ |
| Expenses [Text Block] | What were the Fund costs for the past six months? (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 SoFi Enhanced Yield ETF $ 29 0.58 |
| Expenses Paid, Amount | $ 29 |
| Expense Ratio, Percent | 0.58% |
| Net Assets | $ 39,078,000 |
| Holdings Count | Holdings | 8 |
| Investment Company, Portfolio Turnover | 270% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of August 31, 2024 ) Fund Size (Thousands) $39,078 Number of Holdings 8 Portfolio Turnover 270% |
| Holdings [Text Block] | Security Type (% of total investments) Sector % U.S. Treasury Obligations 1.102 Options Purchased 0.085 Options Written -0.093 Cash & Cash Equivalents -0.094 |
| Largest Holdings [Text Block] | What did the Fund invest in? (as of August 31, 2024 ) Top Holdings (% of net assets) United States Treasury Note/Bond - 3.88%, 03/31/2025 36.09 United States Treasury Note/Bond - 4.50%, 11/30/2024 35.41 United States Treasury Note/Bond - 3.00%, 07/15/2025 29.29 S&P 500 Index, Expiration: 09/27/2024; Exercise Price: $6,150.00 7.67 S&P 500 Index, Expiration: 09/27/2024; Exercise Price: $4,880.00 0.11 |
| 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. |
| SoFi Select 500 ETF | |
| Shareholder Report [Line Items] | |
| Fund Name | SoFi Select 500 ETF |
| Class Name | SoFi Select 500 ETF |
| Trading Symbol | SFY |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.sofi.com/invest/etfs/ (877) 358-0096 |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | (877) 358-0096 |
| Additional Information Website | www.sofi.com/invest/etfs/ |
| Expenses [Text Block] | What were the Fund costs for the past six months? (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 SoFi Select 500 ETF $ 0 0.00 |
| Expenses Paid, Amount | $ 0 |
| Expense Ratio, Percent | 0% |
| Net Assets | $ 852,911,000 |
| Holdings Count | Holdings | 502 |
| Investment Company, Portfolio Turnover | 12% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of August 31, 2024 ) Fund Size (Thousands) $852,911 Number of Holdings 502 Portfolio Turnover 12% |
| Holdings [Text Block] | Security Type (% of net assets) Sector % Technology 0.350 Communications 0.182 Financial 0.156 Consumer, Non-cyclical 0.146 Consumer, Cyclical 0.062 Industrial 0.055 Energy 0.020 Utilities 0.015 Basic Materials 0.012 Cash & Cash Equivalents 0.002 |
| Largest Holdings [Text Block] | What did the Fund invest in? (as of August 31, 2024 ) Top Ten Holdings (% of net assets) NVIDIA Corp. 15.1 Amazon.com, Inc. 8.3 Microsoft Corp. 4.6 Apple, Inc. 4.2 Meta Platforms, Inc. - Class A 2.6 Berkshire Hathaway, Inc. - Class B 1.9 JPMorgan Chase & Co. 1.8 Eli Lilly & Co. 1.7 Broadcom, Inc. 1.4 Alphabet, Inc. - Class A 1.3 |
| Material Fund Change [Text Block] | How has the Fund changed? Tidal Investments LLC (the ''Adviser'') has contractually agreed to waive a portion of its Management Fees for the Fund until at least June 30, 2025, such that Management Fees do not exceed 0.05% of the Fund’s average daily net assets. This agreement may be terminated only by, or with the consent of, the Trust’s Board of Trustees, on behalf of the Fund, upon sixty (60) days’ written notice to the Adviser. This agreement may not be terminated by the Adviser without the consent of the Board of Trustees. In addition, the Adviser has voluntarily agreed to waive its full Management Fees through January 31, 2025. The additional voluntary fee waiver may fluctuate or be discontinued by the Adviser at any time with prior notice to shareholders; however, the Adviser currently anticipates maintaining the waiver through January 31, 2025. |
| Material Fund Change Expenses [Text Block] | Tidal Investments LLC (the ''Adviser'') has contractually agreed to waive a portion of its Management Fees for the Fund until at least June 30, 2025, such that Management Fees do not exceed 0.05% of the Fund’s average daily net assets. This agreement may be terminated only by, or with the consent of, the Trust’s Board of Trustees, on behalf of the Fund, upon sixty (60) days’ written notice to the Adviser. This agreement may not be terminated by the Adviser without the consent of the Board of Trustees. In addition, the Adviser has voluntarily agreed to waive its full Management Fees through January 31, 2025. The additional voluntary fee waiver may fluctuate or be discontinued by the Adviser at any time with prior notice to shareholders; however, the Adviser currently anticipates maintaining the waiver through January 31, 2025. |
| Accountant Change Statement [Text Block] | Changes in and Disagreements with Accountants There were no changes in or disagreements with accountants. |
| Shareholder Report, Holdings (Details) | Aug. 31, 2024 |
| SoFi Next 500 ETF | Dynatrace, Inc [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.87% |
| SoFi Next 500 ETF | Blue Owl Capital, Inc. - Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.79% |
| SoFi Next 500 ETF | TechnipFMC PLC [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.76% |
| SoFi Next 500 ETF | Nutanix, Inc. - Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.76% |
| SoFi Next 500 ETF | Pure Storage, Inc. - Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.76% |
| SoFi Next 500 ETF | FTAI Aviation Ltd [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.69% |
| SoFi Next 500 ETF | Regal Rexnord Corp [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.64% |
| SoFi Next 500 ETF | Molson Coors Brewing Co. - Class B [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.62% |
| SoFi Next 500 ETF | Interactive Brokers Group, Inc. - Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.61% |
| SoFi Next 500 ETF | Kimco Realty Corp [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.59% |
| SoFi Next 500 ETF | Financial [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.70% |
| SoFi Next 500 ETF | Consumer, Non-cyclical [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19% |
| SoFi Next 500 ETF | Industrial [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.80% |
| SoFi Next 500 ETF | Consumer, Cyclical [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.60% |
| SoFi Next 500 ETF | Technology [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.20% |
| SoFi Next 500 ETF | Energy [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.30% |
| SoFi Next 500 ETF | Communications [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| SoFi Next 500 ETF | Basic Materials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| SoFi Next 500 ETF | Utilities [Members] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| SoFi Next 500 ETF | Cash and Cash Equivalents [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| SoFi Social 50 ETF | NVIDIA Corp [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.13% |
| SoFi Social 50 ETF | Tesla, Inc [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.16% |
| SoFi Social 50 ETF | Palantir Technologies, Inc. - Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.17% |
| SoFi Social 50 ETF | Microsoft Corp.Microsoft Corp [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.89% |
| SoFi Social 50 ETF | Amazon.com, Inc [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.81% |
| SoFi Social 50 ETF | Apple, Inc [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| SoFi Social 50 ETF | Meta Platforms, Inc. - Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.71% |
| SoFi Social 50 ETF | Alphabet, Inc. - Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.54% |
| SoFi Social 50 ETF | Berkshire Hathaway, Inc. - Class B [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| SoFi Social 50 ETF | Rivian Automotive, Inc. - Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.85% |
| SoFi Social 50 ETF | Financial [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.50% |
| SoFi Social 50 ETF | Consumer, Non-cyclical [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.60% |
| SoFi Social 50 ETF | Industrial [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| SoFi Social 50 ETF | Consumer, Cyclical [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 27.90% |
| SoFi Social 50 ETF | Technology [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 31.90% |
| SoFi Social 50 ETF | Energy [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| SoFi Social 50 ETF | Communications [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.20% |
| SoFi Social 50 ETF | Cash and Cash Equivalents [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| SoFi Enhanced Yield ETF | United States Treasury Note/Bond - 3.88%, 03/31/2025 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 36.09% |
| SoFi Enhanced Yield ETF | United States Treasury Note/Bond - 4.50%, 11/30/2024 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 35.41% |
| SoFi Enhanced Yield ETF | United States Treasury Note/Bond - 3.00%, 07/15/2025 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 29.29% |
| SoFi Enhanced Yield ETF | S&P 500 Index, Expiration: 09/27/2024; Exercise Price: $6,150.00 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.67% |
| SoFi Enhanced Yield ETF | S&P 500 Index, Expiration: 09/27/2024; Exercise Price: $4,880.00 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.11% |
| SoFi Enhanced Yield ETF | Cash and Cash Equivalents [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | (9.40%) |
| SoFi Enhanced Yield ETF | U.S. Treasury Obligations [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 110.20% |
| SoFi Enhanced Yield ETF | Options Purchased [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.50% |
| SoFi Enhanced Yield ETF | Options Written [Member] | |
| Holdings [Line Items] | |
| Percent of Total Investments | (9.30%) |
| SoFi Select 500 ETF | NVIDIA Corp [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.10% |
| SoFi Select 500 ETF | Microsoft Corp.Microsoft Corp [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| SoFi Select 500 ETF | Amazon.com, Inc [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.30% |
| SoFi Select 500 ETF | Apple, Inc [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| SoFi Select 500 ETF | Meta Platforms, Inc. - Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| SoFi Select 500 ETF | Alphabet, Inc. - Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| SoFi Select 500 ETF | Berkshire Hathaway, Inc. - Class B [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| SoFi Select 500 ETF | JPMorgan Chase & Co [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| SoFi Select 500 ETF | Eli Lilly & Co [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| SoFi Select 500 ETF | Broadcom, Inc [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| SoFi Select 500 ETF | Financial [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.60% |
| SoFi Select 500 ETF | Consumer, Non-cyclical [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.60% |
| SoFi Select 500 ETF | Industrial [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.50% |
| SoFi Select 500 ETF | Consumer, Cyclical [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| SoFi Select 500 ETF | Technology [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 35% |
| SoFi Select 500 ETF | Energy [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| SoFi Select 500 ETF | Communications [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.20% |
| SoFi Select 500 ETF | Basic Materials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| SoFi Select 500 ETF | Utilities [Members] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| SoFi Select 500 ETF | Cash and Cash Equivalents [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
