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Stock-Based Compensation - Additional Information (Details)
3 Months Ended
Apr. 30, 2016
USD ($)
CompensationPlan
shares
May. 02, 2015
USD ($)
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Shares granted 0 0
Stock compensation expense | $ $ 315,000 $ 598,000
Non Employee Directors    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Number of shares of common stock issued 3,483  
Fair value of common stock issued | $ $ 16,271  
Employee Stock Plan, 2006 Plan    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Number of stock-based compensation plan | CompensationPlan 1  
Increase in authorized shares 7,250,000  
Shares available for future grant 569,221  
Shares granted 445,464  
Awards Other than Stock Options and Stock Appreciation Rights | Employee Stock Plan, 2006 Plan    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Increase in authorized shares 4,250,000  
Shares available for future grant 464,815  
RSUs    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Shares granted 423,230  
RSUs | Employee Stock Plan, 2006 Plan    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Shares granted [1] 423,230  
Deferred stock    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Shares granted 8,434 4,962
Deferred stock | Employee Stock Plan, 2006 Plan    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Shares granted 8,434  
Time Vested Stock Options Restricted Stock and RSU Awards    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Unrecognized stock compensation cost | $ $ 2,800,000  
Unrecognized stock compensation cost weighted average recognition period 24 months 15 days  
Performance-Based Stock Options and Restricted Stock Awards    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Unrecognized stock compensation cost | $ $ 7,200,000  
[1] During the first three months of fiscal 2016, the Company granted 423,230 RSUs in connection with the 2016-2017 LTIP. The RSUs are time-vested awards that will vest over three years with the first 50% vesting on April 1, 2018 and the remaining 50% on April 1, 2019.