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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $)
In Thousands, unless otherwise specified
Total
Common Stock
Additional Paid-In Capital
Retained Earnings
Treasury Stock
Accumulated Other Comprehensive Income (Loss)
Balance at Beginning of Period at Apr. 30, 2011 $ 203,102 $ 32,670 $ 21,149 $ 149,291 $ (9) $ 1
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 8,489     8,489    
Other comprehensive income 32         32
Net tax benefit (deduction) related to share-based compensation (2)   (2)      
Share-based compensation 3,262   3,262      
Exercise of stock options 458 547 (89)      
Employee savings plan activity 1,414 1,414        
Dividends paid (25,950)     (25,950)    
Balance at End of Period at Apr. 28, 2012 190,805 34,631 24,320 131,830 (9) 33
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 22,779     22,779    
Other comprehensive income (151)         (151)
Net tax benefit (deduction) related to share-based compensation 0   0      
Share-based compensation 3,037   3,037      
Exercise of stock options 1,153 1,316 (163)      
Employee savings plan activity 1,482 1,482        
Dividends paid (30,859)     (30,859)    
Balance at End of Period at Apr. 27, 2013 188,246 37,429 27,194 123,750 (9) (118)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 22,206     22,206    
Other comprehensive income 122         122
Net tax benefit (deduction) related to share-based compensation 119   119      
Share-based compensation 2,897   2,897      
Exercise of stock options 4,667 4,954 (287)      
Employee savings plan activity 1,552 1,552        
Dividends paid (16,690)     (16,690)    
Balance at End of Period at Apr. 26, 2014 $ 203,119 $ 43,935 $ 29,923 $ 129,266 $ (9) $ 4