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Stock-Based Compensation - Stock Options (Details)
3 Months Ended
Jun. 01, 2019
USD ($)
$ / shares
Jun. 02, 2018
USD ($)
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized compensation expense related to unvested stock options $ 10,400,000  
Weighted average remaining contractual term (in years) 4 years 4 months 24 days  
Aggregate intrinsic value for options outstanding $ 0  
Weighted average remaining contractual term for options exercisable (in years) 3 years 3 months 18 days  
Aggregate intrinsic value of options exercisable $ 0  
Number of stock options exercised $ 0 $ 0
Share-based Payment Arrangement, Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Period for recognition, weighted average period (in years) 2 years 1 month 6 days  
The 2012 Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted average fair value for stock options granted (in dollars per share) | $ / shares $ 4.18 $ 4.31
The 2012 Plan [Member] | Employee Stock Option Issued Since May 10, 2010 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period commencement (in years) 1 year  
Share-based compensation arrangement by share-based payment award, expiration period (in years) 8 years  
Minimum [Member] | The 2012 Plan [Member] | Share-based Payment Arrangement, Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period, number of equal annual installments 3  
Maximum [Member] | The 2012 Plan [Member] | Share-based Payment Arrangement, Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period, number of equal annual installments 5