Fair Value Measurement (Narrative) (Details) - USD ($)	Jun. 13, 2017	Mar. 22, 2016
Fair Value Disclosures [Abstract]
Transfers between levels	$ 0	$ 0

Fair value, assets (liabilities), transfers between levels.

No definition available.

Name:	dfrg_FairValueAssetsLiabilitiesTransfersBetweenLevels
Namespace Prefix:	dfrg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant