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Note 7 - Property (Tables)
12 Months Ended
Dec. 31, 2020
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
As of December 31,
 
   
2020
   
2019
 
Software
  $
4,122
    $
3,543
 
Furniture and fixtures
   
6,548
     
6,431
 
Data processing and telephone equipment
   
7,728
     
7,675
 
Leasehold improvements
   
10,570
     
10,570
 
Other
   
1,156
     
1,156
 
Total cost
   
30,124
     
29,375
 
Less accumulated depreciation
   
(27,884
)    
(26,637
)
Property, net
  $
2,240
    $
2,738