| Form N-CSR Cover | 6 Months Ended |
| Oct. 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | Spinnaker ETF Series |
| Entity Central Index Key | 0001484018 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Oct. 31, 2024 |
| Shareholder Report | 6 Months Ended | |
| Oct. 31, 2024 USD ($) Holdings | ||
| Shareholder Report [Line Items] | ||
| Document Type | N-CSRS | |
| Amendment Flag | false | |
| Registrant Name | Spinnaker ETF Series | |
| Entity Central Index Key | 0001484018 | |
| Entity Investment Company Type | N-1A | |
| Document Period End Date | Oct. 31, 2024 | |
| Genter Capital Taxable Quality Intermediate ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Genter Capital Taxable Quality Intermediate ETF | |
| Class Name | Genter Capital Taxable Quality Intermediate ETF | |
| Trading Symbol | GENT | |
| Security Exchange Name | NYSEArca | |
| 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.genterfunds.com/GENT (800) 773-3863 | |
| Additional Information Phone Number | (800) 773-3863 | |
| Additional Information Website | www.genterfunds.com/GENT | |
| 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 GENT $ 17 0.38 * Based on operations for the period from May 21, 2024 to October 31, 2024. Expenses for the full 6 month period would be higher. | |
| Expenses Paid, Amount | $ 17 | [1] |
| Expense Ratio, Percent | 0.38% | |
| Expenses Short Period Footnote [Text Block] | Based on operations for the period from May 21, 2024 to October 31, 2024. Expenses for the full 6 month period would be higher. | |
| Net Assets | $ 29,015,359 | |
| Holdings Count | Holdings | 35 | |
| Investment Company, Portfolio Turnover | 25.61% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Net Assets $29,015,359 Number of Holdings 35 Annual Portfolio Turnover 25.61% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) Sector Breakdown (% of net assets) Sector % Treasury Notes 0.527 Financials 0.208 Energy 0.099 Health Care 0.044 Communications 0.039 Utilities 0.029 Industrials 0.019 Other 0.035 | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) United States Treasury Note, 2.875%, 05/15/32 14.5% United States Treasury Note, 3.875%, 09/30/29 12.2% United States Treasury Note, 1.250%, 03/31/28 7.4% United States Treasury Note, 3.500%, 02/15/33 7.3% United States Treasury Note, 4.000%, 01/31/31 7.2% United States Treasury Note, 4.625%, 11/15/26 4.0% Mylan N V Gtd Sr Nt, 3.950%, 06/15/26 3.4% Wells Fargo & Co, 5.574%, 07/25/29 2.0% Synchrony Financial, 3.950%, 12/01/27 2.0% Aircastle Ltd, 4.250%, 06/15/26 2.0% | |
| Genter Capital Municipal Quality Intermediate ETF | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Genter Capital Municipal Quality Intermediate ETF | |
| Class Name | Genter Capital Municipal Quality Intermediate ETF | |
| Trading Symbol | GENM | |
| Security Exchange Name | NYSEArca | |
| 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.genterfunds.com/GENM (800) 773-3863 | |
| Additional Information Phone Number | (800) 773-3863 | |
| Additional Information Website | www.genterfunds.com/GENM | |
| 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 GENM $ 17 0.38 * Based on operations for the period from May 21, 2024 to October 31, 2024. Expenses for the full 6 month period would be higher. | |
| Expenses Paid, Amount | $ 17 | [2] |
| Expense Ratio, Percent | 0.38% | |
| Expenses Short Period Footnote [Text Block] | Based on operations for the period from May 21, 2024 to October 31, 2024. Expenses for the full 6 month period would be higher. | |
| Net Assets | $ 1,411,333 | |
| Holdings Count | Holdings | 37 | |
| Investment Company, Portfolio Turnover | 13.87% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 ) Net Assets $1,411,333 Number of Holdings 37 Annual Portfolio Turnover 13.87% | |
| Holdings [Text Block] | What did the Fund invest in? (as of October 31, 2024 ) State Breakdown (% of net assets) Sector % Texas 0.103 Arizona 0.074 Illinois 0.068 Colorado 0.063 Ohio 0.050 Connecticut 0.042 Michigan 0.039 Louisiana 0.032 Missouri 0.030 Other States 0.271 | |
| Largest Holdings [Text Block] | Top Ten Holdings (% of net assets) Waterbury Hsg Auth, 4.250%, 07/01/39 4.2% Viridian Muni-Ref, 6.250%, 12/01/27 3.8% Chicago Arpt-Ref-B, 5.000%, 01/01/32 3.2% Denver Sch Dist #1, 5.000%, 12/01/24 3.2% Pk Creek Met Dt-A-Re, 5.000%, 12/01/36 3.1% Az Indl Dev Auth -A, 5.000%, 06/01/30 3.0% Chandler Indl Dev-2, 5.000%, 09/01/52 2.9% Lehi -Rev, 4.000%, 02/01/34 2.9% Benton Washington Wt, 4.000%, 10/01/34 2.9% Horizon Regl Mud, 4.000%, 02/01/35 2.8% | |
| [1] Based on operations for the period from May 21, 2024 to October 31, 2024. Expenses for the full 6 month period would be higher. Based on operations for the period from May 21, 2024 to October 31, 2024. Expenses for the full 6 month period would be higher. | ||
| Shareholder Report, Holdings (Details) | Oct. 31, 2024 |
| Genter Capital Taxable Quality Intermediate ETF | United States Treasury Note, 2.875%, 05/15/32 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.50% |
| Genter Capital Taxable Quality Intermediate ETF | United States Treasury Note, 3.875%, 09/30/29 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.20% |
| Genter Capital Taxable Quality Intermediate ETF | United States Treasury Note, 1.250%, 03/31/28 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.40% |
| Genter Capital Taxable Quality Intermediate ETF | United States Treasury Note, 3.500%, 02/15/33 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| Genter Capital Taxable Quality Intermediate ETF | United States Treasury Note, 4.000%, 01/31/31 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| Genter Capital Taxable Quality Intermediate ETF | United States Treasury Note, 4.625%, 11/15/26 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Genter Capital Taxable Quality Intermediate ETF | Mylan N V Gtd Sr Nt, 3.950%, 06/15/26 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Genter Capital Taxable Quality Intermediate ETF | Wells Fargo & Co, 5.574%, 07/25/29 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| Genter Capital Taxable Quality Intermediate ETF | Synchrony Financial, 3.950%, 12/01/27 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| Genter Capital Taxable Quality Intermediate ETF | Aircastle Ltd, 4.250%, 06/15/26 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| Genter Capital Taxable Quality Intermediate ETF | Treasury Notes [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 52.70% |
| Genter Capital Taxable Quality Intermediate ETF | Financials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20.80% |
| Genter Capital Taxable Quality Intermediate ETF | Energy [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.90% |
| Genter Capital Taxable Quality Intermediate ETF | Health Care [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| Genter Capital Taxable Quality Intermediate ETF | Communications [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| Genter Capital Taxable Quality Intermediate ETF | Utilities [Members] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Genter Capital Taxable Quality Intermediate ETF | Industrials [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| Genter Capital Taxable Quality Intermediate ETF | Other [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| Genter Capital Municipal Quality Intermediate ETF | Waterbury Hsg Auth, 4.250%, 07/01/39 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| Genter Capital Municipal Quality Intermediate ETF | Viridian Muni-Ref, 6.250%, 12/01/27 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| Genter Capital Municipal Quality Intermediate ETF | Chicago Arpt-Ref-B, 5.000%, 01/01/32 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| Genter Capital Municipal Quality Intermediate ETF | Denver Sch Dist #1, 5.000%, 12/01/24 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| Genter Capital Municipal Quality Intermediate ETF | Pk Creek Met Dt-A-Re, 5.000%, 12/01/36 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Genter Capital Municipal Quality Intermediate ETF | Az Indl Dev Auth -A, 5.000%, 06/01/30 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Genter Capital Municipal Quality Intermediate ETF | Chandler Indl Dev-2, 5.000%, 09/01/52 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Genter Capital Municipal Quality Intermediate ETF | Lehi -Rev, 4.000%, 02/01/34 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Genter Capital Municipal Quality Intermediate ETF | Benton Washington Wt, 4.000%, 10/01/34 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Genter Capital Municipal Quality Intermediate ETF | Horizon Regl Mud, 4.000%, 02/01/35 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| Genter Capital Municipal Quality Intermediate ETF | TEXAS | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.30% |
| Genter Capital Municipal Quality Intermediate ETF | Arizona [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.40% |
| Genter Capital Municipal Quality Intermediate ETF | Illinois [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| Genter Capital Municipal Quality Intermediate ETF | Colorado [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.30% |
| Genter Capital Municipal Quality Intermediate ETF | OHIO | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| Genter Capital Municipal Quality Intermediate ETF | CONNECTICUT | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| Genter Capital Municipal Quality Intermediate ETF | MICHIGAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| Genter Capital Municipal Quality Intermediate ETF | Louisiana [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| Genter Capital Municipal Quality Intermediate ETF | Missouri [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Genter Capital Municipal Quality Intermediate ETF | Other States [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 27.10% |
