XML 77 R13.htm IDEA: XBRL DOCUMENT v3.20.1
Intangible assets
 12 Months Ended
Dec. 31, 2019
Intangible assets [Abstract]  
Intangible assets
6. Intangible assets
 
Identifiable intangible assets are recorded in Intangible assets in the accompanying Consolidated Balance Sheets and are comprised of the following:

 
 
December 31,
 
 
 
2019
  
2018
 
 
(In thousands)
 
Gross
Amount
  
Accumulated
Amortization
  
Gross
Amount
  
Accumulated
Amortization
 
Purchased technology
 
$
2,526
  
$
(1,792
)
 
$
2,221
  
$
(1,558
)
Customer relationships
  
1,300
   
(1,300
)
  
1,300
   
(1,300
)
Trademark
  
480
   
(402
)
  
480
   
(354
)
Covenant not to compete
  
146
   
(146
)
  
146
   
(146
)
Patents
  
56
   
(51
)
  
57
   
(49
)
Other
  
80
   
(80
)
  
80
   
(80
)
Total
 
$
4,588
  
$
(3,771
)
 
$
4,284
  
$
(3,487
)

Amortization expense was $284 thousand, $128 thousand and $237 thousand in 2019, 2018 and 2017, respectively.  Amortization expense for each of the next five years ending December 31 is expected to be as follows: $237 thousand in 2020; $185 thousand in 2021; $154 thousand in 2022; $154 thousand in 2023; $87 thousand in 2024; and none thereafter.