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Note 5 - Property and Equipment (Tables)
9 Months Ended
Sep. 30, 2017
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
September 30
,
2017
   
December 31,
2016
 
Equipment and furniture
  $
912
    $
1,045
 
Computers and systems
   
5,981
     
5,521
 
Leasehold improvements
   
857
     
804
 
     
7,750
     
7,370
 
                 
Less: accumulated depreciation and amortization
   
4,131
     
3,318
 
                 
Property and equipment, net
  $
3,619
    $
4,052