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Note 13 - Commitments
 12 Months Ended
Dec. 31, 2017
Notes to Financial Statements  
Commitments and Contingencies Disclosure [Text Block]
Note
13
– Commitments
 
The Company leases property from
third
parties. The Company leases
three
of its U.S. facilities with terms expiring at various times from
2018
to
2022.
The Company also leases office space in the United Kingdom, France, Germany and Italy with terms expiring at various times from
2018
to
2023.
The Company leases an office and manufacturing space in Japan, and the initial term expires in
April 2023.
The Company also leases office and manufacturing space in Germany and Finland with terms expiring at various times from
2018
to
2022.
 
Future minimum commitments under non-cancelable leases at
December
 
31,
2017,
are as follows:
 
       
   
Operating
Leases
  
(in thousands)
        
Years Ending December 31,
  
 
 
 
2018
   $
4,322
  
2019
    
2,508
  
2020
    
2,026
  
2021
    
1,975
  
2022
    
1,948
  
After 2022
    
186
  
Total future minimum lease payments
   $
12,965
  
         
 
Renta
l expense was approximately
$3.0
million,
$3.6
million and
$1.4
million for the years ended
December 
31,
2017,
2016
and
2015,
respectively.
 
 The Company acquired a software company in
December 2017,
which was accounted for as an asset acquisition. The asset acquisition included an additional 
$5.0
million in contingent consideration to be recognized and paid upon completion of certain milestones over a
24
-month period. The completion of each milestone will result in additional value to the software technology intangible asset. We did
not
recognize any of the contingent consideration for the year ended
December 31, 2017
as the contingency was
not
resolved.