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Net Income Per Common Share - Additional Information (Detail)
3 Months Ended 6 Months Ended 9 Months Ended
Nov. 01, 2014
Nov. 02, 2013
Nov. 02, 2013
Nov. 01, 2014
Equity [Abstract]        
Anti-dilutive option 155,000 131,600 172,100 155,000