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Note 4 - Property and Equipment, Net (Tables)
12 Months Ended
Dec. 31, 2016
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
2016
   
2015
 
Land
 
$
2,261
    $
2,261
 
Furniture and fixtures
 
 
41,578
     
40,322
 
Computer hardware
 
 
26,960
     
26,277
 
Building
 
 
14,970
     
14,970
 
Leasehold improvements
 
 
113,573
     
113,981
 
Computer software
 
 
41,763
     
46,745
 
Construction in progress
 
 
6,152
     
6,871
 
   
 
247,257
     
251,427
 
Less accumulated depreciation
 
 
172,333
     
183,686
 
Total, net
 
$
74,924
    $
67,741