Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Document Type	dei_DocumentType	485BPOS
Document Period End Date	dei_DocumentPeriodEndDate	May 31, 2011
Registrant Name	dei_EntityRegistrantName	DREYFUS PREMIER CALIFORNIA AMT-FREE MUNICIPAL BOND FUND, INC.
Central Index Key	dei_EntityCentralIndexKey	0000720064
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Sep. 28, 2011
Document Effective Date	dei_DocumentEffectiveDate	Oct. 01, 2011
DREYFUS CALIFORNIA AMT-FREE MUNICIPAL BOND FUND (Prospectus Summary) \| DREYFUS CALIFORNIA AMT-FREE MUNICIPAL BOND FUND \| Class A
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DCAAX
DREYFUS CALIFORNIA AMT-FREE MUNICIPAL BOND FUND (Prospectus Summary) \| DREYFUS CALIFORNIA AMT-FREE MUNICIPAL BOND FUND \| Class B
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DCABX
DREYFUS CALIFORNIA AMT-FREE MUNICIPAL BOND FUND (Prospectus Summary) \| DREYFUS CALIFORNIA AMT-FREE MUNICIPAL BOND FUND \| Class C
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DCACX
DREYFUS CALIFORNIA AMT-FREE MUNICIPAL BOND FUND (Prospectus Summary) \| DREYFUS CALIFORNIA AMT-FREE MUNICIPAL BOND FUND \| Class I
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DCMIX
DREYFUS CALIFORNIA AMT-FREE MUNICIPAL BOND FUND (Prospectus Summary) \| DREYFUS CALIFORNIA AMT-FREE MUNICIPAL BOND FUND \| Class Z
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DRCAX

If the value is true, then the document as an amendment to previously-filed/accepted document.

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- Definition

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.

+ Details

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- Definition

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.

+ Details

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- Definition

The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements this will be the filing date. The format of the date is CCYY-MM-DD.

+ Details

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- Definition

The type of document being provided (such as 10-K, 10-Q, N-1A, etc). The document type should be limited to the same value as the supporting SEC submission type. The acceptable values are as follows: S-1, S-3, S-4, S-11, F-1, F-3, F-4, F-9, F-10, 6-K, 8-K, 10, 10-K, 10-Q, 20-F, 40-F, N-1A, 485BPOS, NCSR, N-Q, and 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

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

-Publisher SEC

-Name Regulation 12B

-Number 240

-Section 12b

-Subsection 1

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- Definition

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

+ References

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

-Publisher SEC

-Name Regulation 12B

-Number 240

-Section 12b

-Subsection 1

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- Definition

Trading symbol of an instrument as listed on an exchange.

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