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Subsequent Events - Additional Information (Detail) (USD $) | 3 Months Ended | 12 Months Ended | 3 Months Ended
--- | --- | --- | ---
Jan. 31, 2015 | Nov. 01, 2014 | Aug. 02, 2014 | May 03, 2014 | Feb. 01, 2014 | Nov. 02, 2013 | Aug. 03, 2013 | May 04, 2013 | Jan. 31, 2015 | Feb. 01, 2014 | Feb. 02, 2013 | May 02, 2015
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Retirement expense, per diluted share | $ 0.87 us-gaap_EarningsPerShareDiluted | $ 0.07 us-gaap_EarningsPerShareDiluted | $ (0.06)us-gaap_EarningsPerShareDiluted | $ 0.12 us-gaap_EarningsPerShareDiluted | $ 0.69 us-gaap_EarningsPerShareDiluted | $ 0.06 us-gaap_EarningsPerShareDiluted | $ (0.03)us-gaap_EarningsPerShareDiluted | $ 0.10 us-gaap_EarningsPerShareDiluted | $ 1.00 us-gaap_EarningsPerShareDiluted | $ 0.82 us-gaap_EarningsPerShareDiluted | $ 0.77 us-gaap_EarningsPerShareDiluted |
Subsequent Event [Member] | Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Retirement expense before tax |  |  |  |  |  |  |  |  |  |  |  | $ 600,000 kirk_RetirementExpenseBeforeTax / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefExecutiveOfficerMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Retirement expense after tax |  |  |  |  |  |  |  |  |  |  |  | $ 366,000 kirk_RetirementExpenseAfterTax / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefExecutiveOfficerMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Retirement expense, per diluted share |  |  |  |  |  |  |  |  |  |  |  | $ (0.02)us-gaap_EarningsPerShareDiluted / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefExecutiveOfficerMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember

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- Definition Retirement expense after tax. + References No definition available. + Details
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Balance Type: | debit
Period Type: | duration

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- Definition Retirement expense before tax. + References No definition available. + Details
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Namespace Prefix: | kirk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 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 210.5-03.21) -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 04 -Paragraph 18 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 21 -Article 9 + Details
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- Details
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- Details
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