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Share-Based Compensation - Share-Based Compensation Expense (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 31, 2015
Nov. 01, 2014
Oct. 31, 2015
Nov. 01, 2014
Share-based Compensation [Abstract]        
Stock Options $ 69 $ 62 $ 212 $ 174
Restricted Stock Awards and Restricted Stock Units 318 58 614 202
Employee Stock Purchase Plan 4 2 8 5
Total $ 391 $ 122 $ 834 $ 381