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Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($)
$ in Thousands
Total
Common Stock
Capital in Excess of Par Value
Retained Earnings
Treasury Stock
Accumulated Other Comprehensive Items
Noncontrolling Interest
Beginning balance (in shares) at Dec. 28, 2019   14,624,159     3,214,888    
Beginning balance at Dec. 28, 2019 $ 427,079 $ 146 $ 106,698 $ 435,249 $ (78,778) $ (37,620) $ 1,384
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net Income 12,656     12,531     125
Dividend declared – Common Stock (2,753)     (2,753)      
Activity under stock plans 235   (1,241)   $ 1,476    
Activity under stock plans (in shares)         (60,244)    
Other comprehensive items (12,945)         (12,934) (11)
Ending balance (in shares) at Mar. 28, 2020   14,624,159     3,154,644    
Ending balance at Mar. 28, 2020 424,272 $ 146 105,457 445,027 $ (77,302) (50,554) 1,498
Beginning balance (in shares) at Jan. 02, 2021   14,624,159     3,081,919    
Beginning balance at Jan. 02, 2021 496,905 $ 146 110,824 479,400 $ (75,519) (19,492) 1,546
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net Income 16,796     16,561     235
Dividend declared – Common Stock (2,894)     (2,894)      
Activity under stock plans (1,890)   (2,760)   $ 870    
Activity under stock plans (in shares)         (35,540)    
Other comprehensive items (4,609)         (4,548) (61)
Ending balance (in shares) at Apr. 03, 2021   14,624,159     3,046,379    
Ending balance at Apr. 03, 2021 $ 504,308 $ 146 $ 108,064 $ 493,067 $ (74,649) $ (24,040) $ 1,720