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Note 3 - Property and Equipment (Tables)
3 Months Ended
Mar. 31, 2017
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
March 31, 2017
   
December 31, 2016
 
Leasehold improvements
  $
17,997
    $
17,847
 
Software
   
41,784
     
41,269
 
Furniture and equipment
   
27,385
     
26,570
 
Computers
   
29,805
     
28,874
 
     
116,971
     
114,560
 
Accumulated depreciation and amortization
   
(78,252
)
   
(74,076
)
Total property and equipment, net
  $
38,719
    $
40,484