Document and Entity Information	Total
Prospectus:
Document Type	485BPOS
Document Period End Date	Jun. 30, 2020
Entity Registrant Name	Spinnaker ETF Series
Entity Central Index Key	0001484018
Entity Inv Company Type	N-1A
Amendment Flag	false
Document Creation Date	Oct. 27, 2020
Document Effective Date	Nov. 01, 2020
Prospectus Date	Nov. 01, 2020
UVA Unconstrained Medium-Term Fixed Income ETF \| UVA Unconstrained Medium-Term Fixed Income ETF
Prospectus:
Trading Symbol	FFIU
UVA Dividend Value ETF \| UVA Dividend Value ETF
Prospectus:
Trading Symbol	FFDV

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The date the document was made available and submitted, in CCYY-MM-DD format. The date of submission, date of acceptance by the recipient, and the document effective date are all potentially different.

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The date when a document, upon receipt and acceptance, becomes officially effective, in CCYY-MM-DD format. Usually it is a system-assigned date time value, but it may be declared by the submitter in some cases.

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The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.

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The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

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A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The date of the prospectus.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Prospectus Table.

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