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Note 5 - Other Intangible Assets
 12 Months Ended
Dec. 31, 2016
Notes to Financial Statements  
Intangible Assets Disclosure [Text Block]
(5
)
Other Intangible Assets
 
Other intangible assets consist of the following (in thousands):
 
   
2016
    
2015
  
                 
Trademarks and other intellectual property
  
$
15,276
    $
14,429
  
Less accumulated amortization
  
 
13,555
     
12,691
  
Total, net
  
$
1,721
    $
1,738
  
 
Trademarks and intellectual property are amortized over
three
years. Amortization expense related to trademarks and intellectual property was
$0.9
million,
$0.5
million and
$0.3
million in
2016,
2015
and
2014
, respectively. Estimated amortization expense related to other intangible assets in the subsequent
five
year period is:
2017
-
$0.9
million;
2018
-
$0.7
million;
2019
-
$0.1
million;
2020
-
$0;
and
2021
-
$0.