XML 69 R55.htm IDEA: XBRL DOCUMENT v3.7.0.1
Shareholders' Equity - Stock Option Awards - Narrative (Details)
12 Months Ended
Jan. 28, 2017
USD ($)
$ / shares
shares
Jan. 30, 2016
USD ($)
$ / shares
Jan. 31, 2015
USD ($)
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock option awards compensation expense $ 522,000 $ 611,000 $ 2,537,000
Number of omnibus stock plans for which stock awards can be currently granted 1    
Granted, weighted average grant date fair value | $ / shares $ 0.96 $ 3.95 $ 3.92
Intrinsic value of options exercised $ 0 $ 1,441,000 $ 6,099,000
Stock Option Tax Benefit [Abstract]      
Tax benefits related to exercise of stock options to be recorded if and when realized $ 0 $ 526,000 $ 1,129,000
2011 Omnibus Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized | shares 9,500,000    
Stock Options [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost related to non-vested awards $ 1,190,000    
Period for recognition of unrecognized compensation cost 2 years 3 months 2 days    
Stock Options [Member] | Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Purchase price of common stock, percent 100.00%    
Award Vesting Period 3 years    
Stock Options [Member] | Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Grant term limit after the effective date of the respective plan's inception 10 years    
Exercise term limit from date of grant 10 years