v3.10.0.1

VARIABLE INTEREST ENTITY (Details) - USD ($)	Sep. 30, 2018	Jul. 18, 2018
Variable Interest Entity [Line Items]
Mercury BBQ, Note Receivable, Interest Rate		10.00%
Mercury BBQ, Note Receivable, Maximum		$ 1,400,000
Mercury BBQ, Note Receivable, Percentage of Excess Cash Flows to Satisfy Note		100.00%
Mercury BBQ, Ownership Percentage, Clark		80.00%
Mercury BBQ, Ownership Percentage, Company		20.00%
Kentucky Restaurants [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Entity Maximum Loss, Exposure Amount	$ 11,000
Variable Interest Entity, Nonconsolidated, Carrying Amount, Liabilities	0
Chicago Restaurants [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Entity Maximum Loss, Exposure Amount	504,000
Variable Interest Entity, Nonconsolidated, Carrying Amount, Liabilities	275,000
Mid-Atlantic Restaurants [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Entity Maximum Loss, Exposure Amount	$ 620,000

X

- Definition

Interest rate of Mercury BBQ Note.

+ References

No definition available.

+ Details

Name:	dave_MercuryBbqNoteReceivableInterestRate
Namespace Prefix:	dave_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Maximum amount of Mercury BBQ loan.

+ References

No definition available.

+ Details

Name:	dave_MercuryBbqNoteReceivableMaximum
Namespace Prefix:	dave_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Percentage of excess cash flows to be used to repay note receivable.

+ References

No definition available.

+ Details

Name:	dave_MercuryBbqNoteReceivablePercentageOfExcessCashFlowsToSatisfyNote
Namespace Prefix:	dave_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Percentage of Mercury BBQ owned by Clark.

+ References

No definition available.

+ Details

Name:	dave_MercuryBbqOwnershipPercentageClark
Namespace Prefix:	dave_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Percentage of Mercury BBQ owned by the Company.

+ References

No definition available.

+ Details

Name:	dave_MercuryBbqOwnershipPercentageCompany
Namespace Prefix:	dave_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=108788376&loc=d3e5747-111685

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph b
-URI http://asc.fasb.org/extlink&oid=108788376&loc=d3e5728-111685

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

X

- Definition

Carrying amount of the liabilities in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), where the reporting entity is not the VIE's primary beneficiary.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph a
-URI http://asc.fasb.org/extlink&oid=108788376&loc=d3e5728-111685

+ Details

Name:	us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountLiabilities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=dave_KentuckyRestaurantsMemberMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=dave_ChicagoRestaurantsMemberMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=dave_MidAtlanticRestaurantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: