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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-In Capital
Retained Earnings
Treasury Stock
Accumulated Other Comprehensive Loss
Balance at Beginning of Period at May. 02, 2015 $ 212,039 $ 48,960 $ 32,693 $ 132,771 $ (9) $ (2,376)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 2,061     2,061    
Cumulative translation adjustments (529)         (529)
Unrealized (loss) gain on available-for-sale securities, net of tax 7         7
Net tax benefit related to share-based compensation 3   3      
Share-based compensation 2,958   2,958      
Exercise of stock options 610 610 0      
Tax payments related to RSU (303)   (303)      
Employee savings plan activity 1,777 1,777        
Dividends paid (17,556)     (17,556)    
Balance at End of Period at Apr. 30, 2016 201,067 51,347 35,351 117,276 (9) (2,898)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 10,342     10,342    
Cumulative translation adjustments (1,472)         (1,472)
Unrealized (loss) gain on available-for-sale securities, net of tax (11)         (11)
Share-based compensation 2,914   2,914      
Exercise of stock options 343 343 0      
Tax payments related to RSU (261)   (261)      
Employee savings plan activity 840 840        
Dividends paid (13,651)     (13,651)    
Treasury stock purchase (1,825)       (1,825)  
Balance at End of Period at Apr. 29, 2017 198,286 52,530 38,004 113,967 (1,834) (4,381)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 5,562     5,562    
Cumulative translation adjustments 1,808         1,808
Unrealized (loss) gain on available-for-sale securities, net of tax (141)         (141)
Share-based compensation 2,635   2,635      
Exercise of stock options 519 519 0      
Tax payments related to RSU (311)   (311)      
Employee savings plan activity 1,682 1,682        
Dividends paid (12,424)     (12,424)    
Balance at End of Period at Apr. 28, 2018 $ 197,616 $ 54,731 $ 40,328 $ 107,105 $ (1,834) $ (2,714)