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Related Party Transactions - Additional Information (Detail) (Vendor [Member], Merchandise Inventory Purchase [Member], USD $)
In Millions, unless otherwise specified
12 Months Ended
Jan. 31, 2015
Feb. 01, 2014
Feb. 02, 2013
Vendor [Member] | Merchandise Inventory Purchase [Member]
     
Related Party Transaction [Line Items]      
Purchase from related party vendor $ 29.1us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= kirk_MerchandiseInventoryPurchaseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= kirk_VendorMember
$ 29.7us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= kirk_MerchandiseInventoryPurchaseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= kirk_VendorMember
$ 28.1us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= kirk_MerchandiseInventoryPurchaseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= kirk_VendorMember
Purchase from related party vendor as percentage of total merchandise purchases 12.50%kirk_PurchaseFromRelatedPartyVendorPercentage
/ us-gaap_RelatedPartyTransactionAxis
= kirk_MerchandiseInventoryPurchaseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= kirk_VendorMember
13.70%kirk_PurchaseFromRelatedPartyVendorPercentage
/ us-gaap_RelatedPartyTransactionAxis
= kirk_MerchandiseInventoryPurchaseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= kirk_VendorMember
12.70%kirk_PurchaseFromRelatedPartyVendorPercentage
/ us-gaap_RelatedPartyTransactionAxis
= kirk_MerchandiseInventoryPurchaseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= kirk_VendorMember
Cost of sale related to vendor 27.6us-gaap_RelatedPartiesAmountInCostOfSales
/ us-gaap_RelatedPartyTransactionAxis
= kirk_MerchandiseInventoryPurchaseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= kirk_VendorMember
29.1us-gaap_RelatedPartiesAmountInCostOfSales
/ us-gaap_RelatedPartyTransactionAxis
= kirk_MerchandiseInventoryPurchaseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= kirk_VendorMember
26.7us-gaap_RelatedPartiesAmountInCostOfSales
/ us-gaap_RelatedPartyTransactionAxis
= kirk_MerchandiseInventoryPurchaseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= kirk_VendorMember
Payable amounts outstanding to vendor $ 2.1us-gaap_AccountsPayableRelatedPartiesCurrentAndNoncurrent
/ us-gaap_RelatedPartyTransactionAxis
= kirk_MerchandiseInventoryPurchaseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= kirk_VendorMember
$ 1.8us-gaap_AccountsPayableRelatedPartiesCurrentAndNoncurrent
/ us-gaap_RelatedPartyTransactionAxis
= kirk_MerchandiseInventoryPurchaseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= kirk_VendorMember
$ 2.2us-gaap_AccountsPayableRelatedPartiesCurrentAndNoncurrent
/ us-gaap_RelatedPartyTransactionAxis
= kirk_MerchandiseInventoryPurchaseMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= kirk_VendorMember