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Note 5 - Other Intangible Assets (Tables)
12 Months Ended
Dec. 30, 2017
Notes Tables  
Schedule of Finite-Lived Intangible Assets [Table Text Block]
   
2017
   
2016
 
                 
Trademarks and other intellectual property
 
$
15,656
    $
15,276
 
Less accumulated amortization
 
 
14,661
     
13,555
 
Total, net
 
$
995
    $
1,721