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Related Party Transactions - Schedule of Selected Results Related to Vendor (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jan. 30, 2021 | Feb. 01, 2020
Related Party Transactions [Abstract] |  |
Purchases | $ 0 | $ 19,577
Purchases as a percent of total merchandise purchases |  | 7.60%

X
- Definition Purchase from related party vendor percentage. + References No definition available. + Details
Name: | kirk_PurchaseFromRelatedPartyVendorPercentage
Namespace Prefix: | kirk_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- 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

X
- References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration