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Condensed Consolidated Statements of Shareholders' Equity - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-In Capital
Retained Earnings
Treasury Stock
Accumulated Other Comprehensive Loss
Balance beginning at May. 01, 2021 $ 193,554 $ 60,575 $ 46,595 $ 96,016 $ (7,297) $ (2,335)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net (loss) income 3,685     3,685    
Cumulative translation adjustments (373)         (373)
Unrealized gain (loss) on available-for-sale securities, net of tax 0          
Share-based compensation 518   518      
Employee savings plan activity 597 597        
Treasury stock reissued 200   4   196  
Balance ending at Jul. 31, 2021 198,181 61,172 47,117 99,701 (7,101) (2,708)
Balance beginning at Apr. 30, 2022 191,564 61,794 48,372 96,608 (10,285) (4,925)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net (loss) income (5,326)     (5,326)    
Cumulative translation adjustments (642)         (642)
Unrealized gain (loss) on available-for-sale securities, net of tax 1         1
Share-based compensation 511   511      
Employee savings plan activity 594 594        
Balance ending at Jul. 30, 2022 $ 186,702 $ 62,388 $ 48,883 $ 91,282 $ (10,285) $ (5,566)