Advisory agreement termination fee.

No definition available.

Name:	dfrg_AdvisoryAgreementTerminationFee
Namespace Prefix:	dfrg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Common Stock Issuance Cost

+ References

No definition available.

+ Details

Name:	dfrg_CommonStockIssuanceCost
Namespace Prefix:	dfrg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Related Party Transaction Bonus

+ References

No definition available.

+ Details

Name:	dfrg_RelatedPartyTransactionBonus
Namespace Prefix:	dfrg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Restaurant Level Earnings Before Interest Taxes Depreciation And Amortization

+ References

No definition available.

+ Details

Name:	dfrg_RestaurantLevelEarningsBeforeInterestTaxesDepreciationAndAmortization
Namespace Prefix:	dfrg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228

+ Details

Name:	us-gaap_AssetImpairmentCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Costs of sales and operating expenses for the period incurred from transactions with related parties.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.2)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

+ Details

Name:	us-gaap_CostsAndExpensesRelatedParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

+ Details

Name:	us-gaap_DepreciationAndAmortization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.4)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

+ Details

Name:	us-gaap_GeneralAndAdministrativeExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

+ Details

Name:	us-gaap_OperatingIncomeLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Expenditures associated with opening new locations which are noncapital in nature and expensed as incurred.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.3)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

+ Details

Name:	us-gaap_PreOpeningCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_SegmentReportingAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Segment Reporting (Reconciliation Of Restaurant-Level EBITDA To Operating Income) (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended			3 Months Ended						4 Months Ended		12 Months Ended
	Dec. 04, 2013	Jul. 25, 2013	Mar. 07, 2013	Sep. 09, 2014	Jun. 17, 2014	Mar. 25, 2014	Sep. 03, 2013	Jun. 11, 2013	Mar. 19, 2013	Dec. 30, 2014	Dec. 31, 2013	Dec. 30, 2014	Dec. 31, 2013	Dec. 25, 2012
Segment Reporting [Abstract]
Restaurant-level EBITDA												$ 66,951	$ 62,109	$ 56,517
Less: Pre-opening costs												4,735us-gaap_PreOpeningCosts	3,758us-gaap_PreOpeningCosts	4,058us-gaap_PreOpeningCosts
Less: General and administrative												20,537us-gaap_GeneralAndAdministrativeExpense	17,421us-gaap_GeneralAndAdministrativeExpense	13,449us-gaap_GeneralAndAdministrativeExpense
Management and accounting fees paid to related party														1,252us-gaap_CostsAndExpensesRelatedParty
Less: Asset advisory agreement termination fee														3,000dfrg_AdvisoryAgreementTerminationFee
Less: Public offering costs	231dfrg_CommonStockIssuanceCost	381dfrg_CommonStockIssuanceCost	412dfrg_CommonStockIssuanceCost				381dfrg_CommonStockIssuanceCost		412dfrg_CommonStockIssuanceCost		231dfrg_CommonStockIssuanceCost	5dfrg_CommonStockIssuanceCost	1,024dfrg_CommonStockIssuanceCost
Less: Public offering transaction bonuses													8,355dfrg_RelatedPartyTransactionBonus	1,462dfrg_RelatedPartyTransactionBonus
Less: Non-cash impairment charges										3,536us-gaap_AssetImpairmentCharges	2,360us-gaap_AssetImpairmentCharges	3,536us-gaap_AssetImpairmentCharges	2,360us-gaap_AssetImpairmentCharges
Less: Depreciation and amortization												13,598us-gaap_DepreciationAndAmortization	11,300us-gaap_DepreciationAndAmortization	8,675us-gaap_DepreciationAndAmortization
Operating income				$ 2,452us-gaap_OperatingIncomeLoss	$ 6,920us-gaap_OperatingIncomeLoss	$ 6,749us-gaap_OperatingIncomeLoss	$ (759)us-gaap_OperatingIncomeLoss	$ 6,935us-gaap_OperatingIncomeLoss	$ 4,904us-gaap_OperatingIncomeLoss	$ 8,419us-gaap_OperatingIncomeLoss	$ 6,811us-gaap_OperatingIncomeLoss	$ 24,540us-gaap_OperatingIncomeLoss	$ 17,891us-gaap_OperatingIncomeLoss	$ 24,621us-gaap_OperatingIncomeLoss