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Note 10 - Shareholders' Equity (Details) - Activity of Shareholders' Equity Two (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 29, 2013
Dec. 30, 2012
Jan. 01, 2012
Jan. 02, 2011
Note 10 - Shareholders' Equity (Details) - Activity of Shareholders' Equity Two [Line Items]        
Amount $ 340,787 $ 295,702    
Net income 48,255 5,943 38,721  
Pension liability adjustment (1,409) (771) 5,066  
Foreign currency translation adjustment (5,241) 8,539 (7,614)  
Common Stock [Member]
        
Note 10 - Shareholders' Equity (Details) - Activity of Shareholders' Equity Two [Line Items]        
Amount 6,631 6,606 6,548  
Shares (in Shares) 66,311 66,062 65,484  
Stock issuances under employee option plans 20 16    
Stock issuances under employee option plans (in Shares) 201 160    
Other issuances of common stock 67 58    
Other issuances of common stock (in Shares) 670 573    
Forfeitures and compensation expense related to stock awards (62) (16)    
Forfeitures and compensation expense related to stock awards (in Shares) (622) (155)    
Additional Paid-in Capital [Member]
        
Note 10 - Shareholders' Equity (Details) - Activity of Shareholders' Equity Two [Line Items]        
Amount 374,597 366,677 361,400 349,662
Stock issuances under employee option plans 1,814 2,030 210  
Other issuances of common stock 10,805 7,564 11,336  
Unamortized stock compensation expense related to restricted stock awards (10,872) (7,610) (11,402)  
Forfeitures and compensation expense related to stock awards 6,173 3,293 11,594  
Retained Earnings [Member]
        
Note 10 - Shareholders' Equity (Details) - Activity of Shareholders' Equity Two [Line Items]        
Amount 24,226 (16,746) (16,764) (49,770)
Net income 48,255 5,943 38,721  
Cash dividends paid (7,283) (5,925) (5,231)  
Accumulated Defined Benefit Plans Adjustment [Member]
        
Note 10 - Shareholders' Equity (Details) - Activity of Shareholders' Equity Two [Line Items]        
Amount (34,082) (35,491) (36,262) (31,196)
Pension liability adjustment 1,409 771 (5,066)  
Accumulated Translation Adjustment [Member]
        
Note 10 - Shareholders' Equity (Details) - Activity of Shareholders' Equity Two [Line Items]        
Amount (30,585) (25,344) (33,883) (26,269)
Foreign currency translation adjustment $ (5,241) $ 8,539 $ (7,614)