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Income Taxes - Additional Information (Detail) - USD ($)
12 Months Ended
Jan. 30, 2016
Jan. 31, 2015
Income Tax [Line Items]    
Remaining valuation allowance against the Company's deferred tax assets $ 0 $ 0
Unrecognized tax benefits 307,000 307,000
Accrued payment of interest and penalties associated with unrecognized tax benefits $ 247,000 $ 216,500
Minimum [Member]    
Income Tax [Line Items]    
Income tax examination, year under examination 2012  
Maximum [Member]    
Income Tax [Line Items]    
Income tax examination, year under examination 2014