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Stock-Based Employee Compensation (Narrative) (Details) (USD $)
3 Months Ended 9 Months Ended
Mar. 24, 2015
Mar. 25, 2014
Sep. 09, 2014
Dec. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares of common stock issuable upon exercise of currently outstanding options 1,423,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber     1,429,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Total unrecognized compensation cost related to non-vested stock options $ 5,000,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions      
Cost is expected to be recognized 2 years      
Fair value of each option award, risk free interest rate   1.86%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate    
Fair value of each option award, expected option life   5 years 4 months 24 days    
Fair value of each option award, expected volatility   37.32%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate    
Estimated dividend yield          
Equity-based compensation $ 580,000us-gaap_ShareBasedCompensation $ 573,000us-gaap_ShareBasedCompensation    
2012 Equity Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options granted under the company's equity incentive plan, vesting period 4 years      
Shares authorized for issuance 2,232,800us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= dfrg_TwoThousandTwelveOmnibusEquityIncentivePlanMember
     
Shares of common stock issuable upon exercise of currently outstanding options 1,423,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_PlanNameAxis
= dfrg_TwoThousandTwelveOmnibusEquityIncentivePlanMember
     
Shares available for future grants 695,925us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ us-gaap_PlanNameAxis
= dfrg_TwoThousandTwelveOmnibusEquityIncentivePlanMember
     
Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options granted under the company's equity incentive plan, vesting period 1 year      
Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options granted under the company's equity incentive plan, vesting period 4 years      
Maximum [Member] | 2012 Equity Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options granted under the Company's equity incentive plan, contractual term 10 years