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Basis of Presentation - Summary of Unvested Restricted Stock Grants to Employees and Directors (Detail) (Restricted Stock [Member], USD $)
In Thousands, except Per Share data, unless otherwise specified
9 Months Ended
Nov. 01, 2014
Restricted Stock [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Shares at beginning of period 551
Shares granted 645
Shares vested (104)
Shares forfeited (26)
Shares at end of period 1,066
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Weighted average grant date fair value, beginning balance $ 3.39
Weighted average grant date fair value, granted $ 2.05
Weighted average grant date fair value, vested $ 2.94
Weighted average grant date fair value, forfeited $ 2.38
Weighted average grant date fair value, ending balance $ 2.65