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Consolidated Statement Of Stockholders' Equity (USD $)
In Thousands, unless otherwise specified
Common Stock [Member]
Class B Common Stock [Member]
Par Value [Member]
USD ($)
Additional Paid In Capital [Member]
USD ($)
Common Stock In Treasury [Member]
USD ($)
Retained Earnings [Member]
Common Stock [Member]
USD ($)
Retained Earnings [Member]
Class B Common Stock [Member]
USD ($)
Retained Earnings [Member]
USD ($)
Accumulated Other Comprehensive Income (Loss) [Member]
USD ($)
Common Stock [Member]
USD ($)
Class B Common Stock [Member]
USD ($)
Total
USD ($)
Balance at May. 28, 2011     $ 893 $ 112,179 $ (1,493)     $ 98,927 $ 11,541     $ 222,047
Balance, shares at May. 28, 2011 14,921 2,952                    
Net income               4,461       4,461
Foreign currency translation                 (1,205)     (1,205)
Fair value adjustments on investments                 (51)     (51)
Share-based compensation:                        
Stock options       262               262
Common stock:                        
Options exercised     4 437 (80)             361
Options exercised, shares 63                      
Cancelled shares   (12)                    
Repurchase of common stock         (11,888)             (11,888)
Treasury stock     (51) (13,371) 13,425             3
Treasury stock, shares (1,003)                      
Other     1         (2)       (1)
Other, shares 12                      
Dividends paid to :                        
Dividends paid to common stock           (1,413) (265)     (1,413) (265)  
Balance at Dec. 03, 2011     $ 847 $ 99,507 $ (36)     $ 101,708 $ 10,285     $ 212,311
Balance, shares at Dec. 03, 2011 13,993 2,940