Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Document Type	dei_DocumentType	497
Document Period End Date	dei_DocumentPeriodEndDate	May 31, 2018
Registrant Name	dei_EntityRegistrantName	Starboard Investment Trust
Central Index Key	dei_EntityCentralIndexKey	0001464413
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Oct. 04, 2018
Document Effective Date	dei_DocumentEffectiveDate	Oct. 04, 2018
Prospectus Date	rr_ProspectusDate	Oct. 01, 2018
Cavalier Adaptive Income Fund \| Institutional Class Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CADTX
Cavalier Adaptive Income Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CADAX
Cavalier Adaptive Income Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CAADX
Cavalier Dynamic Growth Fund \| Institutional Class Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CDYGX
Cavalier Dynamic Growth Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CADYX
Cavalier Dynamic Growth Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CDGAX
Cavalier Fundamental Growth Fund \| Institutional Class Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CAFGX
Cavalier Fundamental Growth Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CFGAX
Cavalier Fundamental Growth Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CFDAX
Cavalier Growth Opportunities Fund \| Institutional Class Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CATEX
Cavalier Growth Opportunities Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CATDX
Cavalier Growth Opportunities Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CAGOX
Cavalier Hedged High Income Fund \| Institutional Class Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CHIIX
Cavalier Hedged High Income Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CAHIX
Cavalier Hedged High Income Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CHHAX
Cavalier Tactical Economic Fund \| Institutional Class Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CMSFX
Cavalier Tactical Economic Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CMSYX
Cavalier Tactical Economic Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CAVMX
Cavalier Tactical Rotation Fund \| Institutional Class Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CTROX
Cavalier Tactical Rotation Fund \| Class C Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CATOX
Cavalier Tactical Rotation Fund \| Class A Shares
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CAVTX

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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 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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- Definition

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

+ References

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-Publisher SEC
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The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

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- Definition

The date of the prospectus.

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-Chapter A
-Section 1
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