Annual fees of gross revenue for consulting services percentage

No definition available.

Name:	genk_AnnualFeesOfGrossRevenueForConsultingServicesPercentage
Namespace Prefix:	genk_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Other related party transactions ownership percentage rate

+ References

No definition available.

+ Details

Name:	genk_OtherRelatedPartyTransactionsOwnershipPercentageRate
Namespace Prefix:	genk_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Outstanding obligations to related party included in accounts payable.

+ References

No definition available.

+ Details

Name:	genk_OutstandingObligationsToRelatedPartyIncludedInAccountsPayable
Namespace Prefix:	genk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Payment towards accounts payable.

+ References

No definition available.

+ Details

Name:	genk_PaymentTowardsAccountsPayable
Namespace Prefix:	genk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Payments to third party.

+ References

No definition available.

+ Details

Name:	genk_PaymentsToThirdParty
Namespace Prefix:	genk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Payments to third party for reimbursement of travel and related expenses.

+ References

No definition available.

+ Details

Name:	genk_PaymentsToThirdPartyForReimbursementOfTravelAndRelatedExpenses
Namespace Prefix:	genk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(15)(5))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(15)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

+ Details

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

- Definition

Specific incremental costs directly attributable to a proposed or actual offering of securities which are deferred at the end of the reporting period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 340
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.A)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480341/340-10-S99-1

+ Details

Name:	us-gaap_DeferredOfferingCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c)(2)(i))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c)(2)(ii))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(g)(3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

+ Details

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

- Definition

Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=genk_PacificGlobalDistributionIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=genk_JlRestaurantManagementIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=genk_WiseUniversalIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=genk_IgniteEnterpriseLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=genk_FastFabricationsLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_RelatedPartyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_IPOMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Other Related-Party Transactions - Additional Information (Details) - USD ($)		12 Months Ended
	Aug. 29, 2014	Dec. 31, 2024	Dec. 31, 2023
Related Party Transaction [Line Items]
Deferred offering costs		$ 0
Payment towards accounts payable		105,000
Pacific Global (PGD)
Related Party Transaction [Line Items]
Purchases of company		678,000	$ 2,800,000
Outstanding obligation		$ 20,000	137,000
Other related party transactions ownership percentage rate		100.00%
JL Restaurant Management, Inc
Related Party Transaction [Line Items]
Outstanding obligation		$ 0	24,000
Payments to third party			1,200,000
Wise Universal, Inc
Related Party Transaction [Line Items]
Purchases of company		$ 12,400,000
Other related party transactions ownership percentage rate		60.00%
Ignite
Related Party Transaction [Line Items]
Payments to third party			2,300,000
Other related party transactions ownership percentage rate	100.00%	100.00%
Payments to third party for reimbursement of travel and related expenses		$ 466,000
Ignite \| Maximum
Related Party Transaction [Line Items]
Annual fees of gross revenue for consulting services percentage	25.00%
Fast Fabrications, LLC
Related Party Transaction [Line Items]
Payments to third party		$ 0	$ 30,000
Other related party transactions ownership percentage rate		100.00%
Related Party
Related Party Transaction [Line Items]
Accounts payable for purchases		$ 47,000
IPO
Related Party Transaction [Line Items]
Deferred offering costs		$ 3,300,000