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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (UNAUDITED) - USD ($)
$ in Thousands
Total
Common Stock
Capital Contributed in Excess of Par Value
Accumulated Earnings
Accumulated Other Comprehensive (Loss) Income
Balance at May. 01, 2016 $ 128,812 $ 614 $ 43,795 $ 84,547 $ (144)
Balance (in shares) at May. 01, 2016   12,265,489      
Net income 5,313        
Unrealized gain on investments 96        
Balance at Jul. 31, 2016 131,435        
Balance at May. 01, 2016 128,812 $ 614 43,795 84,547 (144)
Balance (in shares) at May. 01, 2016   12,265,489      
Net income 22,334     22,334  
Stock-based compensation 3,358   3,358    
Unrealized gain on investments 140       140
Excess tax benefit related to stock based compensation 657   657    
Common stock issued in connection with performance based units   $ 2 (2)    
Common stock issued in connection with performance based units (in shares)   49,192      
Fully vested common stock award   4,800      
Common stock issued in connection with exercise of stock options 588 $ 3 585    
Common stock issued in connection with exercise of stock options (in shares)   68,000      
Common stock surrendered for the cost of stock option exercises and withholding taxes payable (979) $ (1) (978)    
Common stock surrendered for the cost of stock option exercises and withholding taxes payable (in shares)   (30,850)      
Dividends paid (6,280)     (6,280)  
Balance at Apr. 30, 2017 [1] 148,630 $ 618 47,415 100,601 (4)
Balance (in shares) at Apr. 30, 2017 [1]   12,356,631      
Net income 4,984     4,984  
Stock-based compensation 757   757    
Unrealized gain on investments 44       44
Common stock issued in connection with performance based units   $ 6 (6)    
Common stock issued in connection with performance based units (in shares)   118,845      
Common stock issued in connection with exercise of stock options 5   5    
Common stock issued in connection with exercise of stock options (in shares)   600      
Common stock surrendered for the cost of stock option exercises and withholding taxes payable (1,135) $ (2) (1,133)    
Common stock surrendered for the cost of stock option exercises and withholding taxes payable (in shares)   (34,915)      
Dividends paid (3,608)     (3,608)  
Balance at Jul. 30, 2017 $ 149,677 $ 622 $ 47,038 $ 101,977 $ 40
Balance (in shares) at Jul. 30, 2017   12,441,161      
[1] Derived from audited financial statements.