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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
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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 | $ 29.1 us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty / us-gaap_RelatedPartyTransactionAxis = kirk_MerchandiseInventoryPurchaseMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = kirk_VendorMember | $ 29.7 us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty / us-gaap_RelatedPartyTransactionAxis = kirk_MerchandiseInventoryPurchaseMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = kirk_VendorMember | $ 28.1 us-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 | 27.6 us-gaap_RelatedPartiesAmountInCostOfSales / us-gaap_RelatedPartyTransactionAxis = kirk_MerchandiseInventoryPurchaseMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = kirk_VendorMember | 29.1 us-gaap_RelatedPartiesAmountInCostOfSales / us-gaap_RelatedPartyTransactionAxis = kirk_MerchandiseInventoryPurchaseMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = kirk_VendorMember | 26.7 us-gaap_RelatedPartiesAmountInCostOfSales / us-gaap_RelatedPartyTransactionAxis = kirk_MerchandiseInventoryPurchaseMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = kirk_VendorMember
Payable amounts outstanding to vendor | $ 2.1 us-gaap_AccountsPayableRelatedPartiesCurrentAndNoncurrent / us-gaap_RelatedPartyTransactionAxis = kirk_MerchandiseInventoryPurchaseMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = kirk_VendorMember | $ 1.8 us-gaap_AccountsPayableRelatedPartiesCurrentAndNoncurrent / us-gaap_RelatedPartyTransactionAxis = kirk_MerchandiseInventoryPurchaseMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = kirk_VendorMember | $ 2.2 us-gaap_AccountsPayableRelatedPartiesCurrentAndNoncurrent / us-gaap_RelatedPartyTransactionAxis = kirk_MerchandiseInventoryPurchaseMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = kirk_VendorMember

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

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- Definition Amount for accounts payable to related parties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph k -Subparagraph 1 -Article 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.17) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 17 -Article 7 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount included in cost of sales related to transactions with related parties incurred and recorded in the statement of operations for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 3 -Subparagraph b -Article 5 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

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- 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