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Share-Based Compensation (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Sep. 01, 2018
Sep. 02, 2017
Sep. 01, 2018
Sep. 02, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation     $ 3,119 $ 3,063
Cash proceeds from exercise of stock options $ 200 $ 800    
Aggregate intrinsic value of securities 600 $ 4,800    
Total unrecognized compensation cost related to nonvested share $ 9,500   $ 9,500  
Document Period End Date     Sep. 01, 2018  
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted average period, Nonvested 22 months      
Total fair value of shares vested     $ 4,900