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INCOME TAXES (Details 2) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jan. 31, 2015
Feb. 01, 2014
Feb. 02, 2013
Tax carry-forwards      
Carry-forwards for general business tax credits $ 5,969us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness $ 4,742us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness  
Carry-forwards for alternative minimum tax credits 5,529us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax 5,529us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax  
Alternative minimum tax credit carry-forwards that were acquired by the Company in connection with an acquisition 2,064bont_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTaxAcquiredInAcquisition 2,064bont_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTaxAcquiredInAcquisition  
Income tax benefit (1,619)us-gaap_IncomeTaxExpenseBenefit 84us-gaap_IncomeTaxExpenseBenefit (228)us-gaap_IncomeTaxExpenseBenefit
Non-cash income tax benefit from continuing operations   1,486us-gaap_OtherNoncashIncomeTaxExpense  
Domestic Tax Authority      
Tax carry-forwards      
Operating loss carry-forwards 104,176us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_DomesticCountryMember
   
State and Local Jurisdiction      
Tax carry-forwards      
Operating loss carry-forwards $ 348,177us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember