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Note 5 - Other Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Finite-Lived Intangible Assets [Table Text Block]
   
2016
   
2015
 
                 
Trademarks and other intellectual property
 
$
15,276
    $
14,429
 
Less accumulated amortization
 
 
13,555
     
12,691
 
Total, net
 
$
1,721
    $
1,738