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Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Registrant Name dei_EntityRegistrantName Starboard Investment Trust
Prospectus Date rr_ProspectusDate Dec. 30, 2013
Roumell Opportunistic Value Fund | Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Annual Return 2011 rr_AnnualReturn2011 (11.69%)
Annual Return 2012 rr_AnnualReturn2012 12.98%
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-date return as of most recent quarter
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2013
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 13.75%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest return for a quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Mar. 31, 2013
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 11.91%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest return for a quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2011
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (12.24%)
Past 1 Year rr_AverageAnnualReturnYear01 12.98%
Since Inception rr_AverageAnnualReturnSinceInception (0.11%)
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 31, 2010
Roumell Opportunistic Value Fund | Institutional Class | After taxes on distributions
  
Risk/Return: rr_RiskReturnAbstract  
Past 1 Year rr_AverageAnnualReturnYear01 12.68%
Since Inception rr_AverageAnnualReturnSinceInception (0.39%)
Roumell Opportunistic Value Fund | Institutional Class | After taxes on distributions and sale of shares
  
Risk/Return: rr_RiskReturnAbstract  
Past 1 Year rr_AverageAnnualReturnYear01 10.40%
Since Inception rr_AverageAnnualReturnSinceInception (0.22%)
Roumell Opportunistic Value Fund | Class A
  
Risk/Return: rr_RiskReturnAbstract  
Past 1 Year rr_AverageAnnualReturnYear01 7.61%
Since Inception rr_AverageAnnualReturnSinceInception (2.61%)
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 31, 2010
Roumell Opportunistic Value Fund
  
Risk/Return: rr_RiskReturnAbstract  
Supplement [Text Block] cik0001464413_SupplementTextBlock
STARBOARD INVESTMENT TRUST

 
 
Roumell Opportunistic Value Fund 
 

Prospectus Supplement
 
March 19, 2014
 
This supplement to the prospectus dated December 30, 2013 for Roumell Opportunistic Value Fund, a series of the Starboard Investment Trust, updates the prospectus to include additional information as described below.  For further information, please contact the Fund toll-free at 1-800-773-3863.  You may obtain additional copies of the prospectus and statement of additional information, free of charge, by writing to the Fund at Post Office Box 4365, Rocky Mount, North Carolina 27803 or calling the Fund toll-free at the number above.
 
The section of the Prospectus entitled "Summary – Performance Information" is being amended in its entirety to read as follows:
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading
PERFORMANCE INFORMATION
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The bar chart and tables shown on the following page provide an indication of the risks of investing in the Fund by showing changes in the performance of the Institutional Class Shares from year to year and by showing how the Fund's average annual total returns compare to that of a broad-based securities market index.  Performance information for Class C Shares will be available after a full calendar year of operations.  The annual returns for the Class C Shares are expected to be substantially similar to those of the Institutional Class Shares because they are invested in the same portfolio of securities and the annual returns would differ only to the extent that the Class C Shares have a 12b-1 fee.  The Fund's past performance is not necessarily an indication of how the Fund will perform in the future.  Updated information on the Fund's results can be obtained by visiting http://www.roumellfund.com.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and tables shown on the following page provide an indication of the risks of investing in the Fund by showing changes in the performance of the Institutional Class Shares from year to year and by showing how the Fund's average annual total returns compare to that of a broad-based securities market index.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress http://www.roumellfund.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund's past performance is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading
Institutional Class Shares
 
Calendar Year Returns
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Quarterly Returns
Highest and Lowest Returns During This Time Period
Highest return for a quarter
11.91%
Quarter ended
March 31, 2013
Lowest return for a quarter
-12.24%
Quarter ended
September 30, 2011
Year-to-date return as of most recent quarter
13.75%
Quarter ended
September 30, 2013
Performance Table Heading rr_PerformanceTableHeading Periods Ended December 31, 2012 (returns with maximum sales charge)
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
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.  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).  After-tax returns are shown for only one class of shares and after-tax returns will vary for other classes.
Roumell Opportunistic Value Fund | Benchmark of 60% Russell 2000 Value Index & 40% Barclays Capital U.S. Government/Credit Index (reflects no deductions for fees and expenses)
  
Risk/Return: rr_RiskReturnAbstract  
Past 1 Year rr_AverageAnnualReturnYear01 12.31%
Since Inception rr_AverageAnnualReturnSinceInception 6.07%
Roumell Opportunistic Value Fund | Russell 2000 Value Index (reflects no deductions for fees and expenses)
  
Risk/Return: rr_RiskReturnAbstract  
Past 1 Year rr_AverageAnnualReturnYear01 18.05%
Since Inception rr_AverageAnnualReturnSinceInception 5.61%
Roumell Opportunistic Value Fund | Barclays Capital U.S. Government/Credit Index (reflects no deductions for fees and expenses)
  
Risk/Return: rr_RiskReturnAbstract  
Past 1 Year rr_AverageAnnualReturnYear01 4.82%
Since Inception rr_AverageAnnualReturnSinceInception 6.75%