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Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Registrant Name dei_EntityRegistrantName Starboard Investment Trust
Prospectus Date rr_ProspectusDate May 24, 2011
The Sector Rotation Fund | No Load Shares
 
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed On Purchases (as a % of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a % of the lesser of amount purchased or redeemed) rr_MaximumDeferredSalesChargeOverOther none
Redemption Fee (as a % of amount redeemed) rr_RedemptionFeeOverRedemption none
Management Fees rr_ManagementFeesOverAssets 1.00% [1]
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none [1]
Other Expenses rr_OtherExpensesOverAssets 0.86% [1],[2]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.34% [1]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.20% [1]
Fee Waiver and/or Expense Limitation rr_FeeWaiverOrReimbursementOverAssets 0.21% [1],[2]
Net Annual Fund Operating Expenses rr_NetExpensesOverAssets 1.99% [1]
1 Year rr_ExpenseExampleYear01 202
3 Years rr_ExpenseExampleYear03 668
5 Years rr_ExpenseExampleYear05 1,161
10 Years rr_ExpenseExampleYear10 2,518
Annual Return 2010 rr_AnnualReturn2010 11.70%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest return for a quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2010
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 11.37%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest return for a quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2010
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (5.05%)
The Sector Rotation Fund | No Load Shares | Predecessor Fund
 
Risk/Return: rr_RiskReturnAbstract  
Past 1 Year rr_AverageAnnualReturnYear01 11.70% [3]
Since Inception rr_AverageAnnualReturnSinceInception 11.67% [3]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 30, 2009 [3]
The Sector Rotation Fund | No Load Shares | Predecessor Fund - After taxes on distributions
 
Risk/Return: rr_RiskReturnAbstract  
Past 1 Year rr_AverageAnnualReturnYear01 11.70%
Since Inception rr_AverageAnnualReturnSinceInception 11.67%
The Sector Rotation Fund | No Load Shares | Predecessor Fund - After taxes on distributions and sale of shares
 
Risk/Return: rr_RiskReturnAbstract  
Past 1 Year rr_AverageAnnualReturnYear01 7.61%
Since Inception rr_AverageAnnualReturnSinceInception 9.92%
The Sector Rotation Fund
 
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Objective [Heading] rr_ObjectiveHeading
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
Expense [Heading] rr_ExpenseHeading
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption
Operating Expenses Caption [Text] rr_OperatingExpensesCaption
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination January 31, 2013
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 457.00%
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent The expense information in the table has been restated to reflect current fees rather than the fees in effect during the previous fiscal year
Expense Example [Heading] rr_ExpenseExampleHeading
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock
Strategy [Heading] rr_StrategyHeading
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
Risk [Heading] rr_RiskHeading
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock
Risk Lose Money [Text] rr_RiskLoseMoney The loss of your money is a principal risk of investing in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table shown below provide an indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing how the Fund's average annual total returns compare to those of a broad-based securities market index.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.ncfunds.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Performance Table Heading rr_PerformanceTableHeading
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor's tax situation and may differ from those shown and are not applicable to investors who hold Fund shares through tax-deferred arrangements such as a 401(k) plan or an individual retirement account (IRA).
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are shown for only one class of shares and after-tax returns will vary for other classes.
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock
The Sector Rotation Fund | S&P 500 Total Return Index (reflects no deductions for fees and expenses)
 
Risk/Return: rr_RiskReturnAbstract  
Past 1 Year rr_AverageAnnualReturnYear01 15.06%
Since Inception rr_AverageAnnualReturnSinceInception 11.62%
[1] The expense information in the table has been restated to reflect current fees rather than the fees in effect during the previous fiscal year.
[2] The Fund's administrator ("Administrator") has entered into a Fund Accounting and Administration Agreement with the Fund that runs through January 31, 2013. The agreement can only be terminated prior to that date at the discretion of the Fund's Board of Trustees. The Administrator receives payments under the agreement at a maximum annual rate of 0.65%. In conjunction with the Fund Accounting and Administration Agreement, the Advisor has entered into an Operating Plan with the Administrator, also through January 31, 2013, under which it has agreed to assume certain expenses of the Administrator to the extent the operating expenses exceed 1.65% of the average daily net assets of the Fund, exclusive of acquired fund fees and expenses. The Operating Plan can only be terminated at the conclusion of the then-current term by notice of non-renewal to a party or mutual agreement of the parties. The Advisor cannot recoup from the Fund any amounts paid under the Operating Plan.
[3] The Predecessor Fund commenced operations on December 30, 2009. The Fund has the same investment objectives and strategies and substantially the same investment policies as the Predecessor Fund.