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Intangible Assets And Goodwill (Intangible Assets And Goodwill) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 30, 2014
Dec. 31, 2013
Amortized intangible assets:    
Gross carrying amount $ 2,378us-gaap_FiniteLivedIntangibleAssetsGross $ 2,316us-gaap_FiniteLivedIntangibleAssetsGross
Accumulated amortization (1,406)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization (1,246)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Net amortized intangible assets 972us-gaap_FiniteLivedIntangibleAssetsNet 1,070us-gaap_FiniteLivedIntangibleAssetsNet
Unamortized intangible assets:    
Unamortized intangible assets 110,968us-gaap_PreconfirmationNonamortizableIntangibleAssets 110,643us-gaap_PreconfirmationNonamortizableIntangibleAssets
Goodwill [Member]    
Unamortized intangible assets:    
Unamortized intangible assets 75,365us-gaap_PreconfirmationNonamortizableIntangibleAssets
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_GoodwillMember
75,365us-gaap_PreconfirmationNonamortizableIntangibleAssets
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_GoodwillMember
Trade Names [Member]    
Unamortized intangible assets:    
Unamortized intangible assets 34,893us-gaap_PreconfirmationNonamortizableIntangibleAssets
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TradeNamesMember
34,893us-gaap_PreconfirmationNonamortizableIntangibleAssets
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TradeNamesMember
Liquor License Permits [Member]    
Unamortized intangible assets:    
Unamortized intangible assets 710us-gaap_PreconfirmationNonamortizableIntangibleAssets
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= dfrg_LiquorLicensesMember
385us-gaap_PreconfirmationNonamortizableIntangibleAssets
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= dfrg_LiquorLicensesMember
Favorable Leasehold Interests [Member]    
Amortized intangible assets:    
Gross carrying amount 848us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OffMarketFavorableLeaseMember
848us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OffMarketFavorableLeaseMember
Accumulated amortization (795)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OffMarketFavorableLeaseMember
(724)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OffMarketFavorableLeaseMember
Licensing Contract Rights [Member]    
Amortized intangible assets:    
Gross carrying amount 1,077us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
1,077us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
Accumulated amortization (531)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
(465)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
Other [Member]    
Amortized intangible assets:    
Gross carrying amount 453us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OtherIntangibleAssetsMember
391us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OtherIntangibleAssetsMember
Accumulated amortization $ (80)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OtherIntangibleAssetsMember
$ (57)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OtherIntangibleAssetsMember