Document and Entity Information	0 Months Ended
May 28, 2014
Risk/Return:
Document Type	497
Document Period End Date	May 28, 2014
Registrant Name	RBB FUND INC
Central Index Key	0000831114
Amendment Flag	false
Document Creation Date	May 28, 2014
Document Effective Date	May 28, 2014
Prospectus Date	Dec. 31, 2013
ROBECO BP SMALL CAP VALUE II \| INSTITUTIONAL
Risk/Return:
Trading Symbol	BPSIX
ROBECO BP SMALL CAP VALUE II \| INVESTOR
Risk/Return:
Trading Symbol	BPSCX
ROBECO WPG SMALL/MICRO CAP VALUE FUND \| INSTITUTIONAL
Risk/Return:
Trading Symbol	WPGTX

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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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No definition available.

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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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No definition available.

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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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- Definition

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".

+ References

No definition available.

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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.

+ References

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

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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.

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

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Trading symbol of an instrument as listed on an exchange.

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- Definition

The date of the prospectus.

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

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