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Note 4 - Property, Equipment and Leasehold Improvements (Tables)
6 Months Ended
Jun. 30, 2012
Property, Plant and Equipment [Table Text Block]
 
Estimated useful lives
 
December 31,
2011
   
June 30,
2012
 
Building
15 years
  $ 600     $ 600  
Computer and office equipment
3 years
    10,742       14,207  
Furniture and fixtures
3 to 5 years
    1,682       2,042  
Leasehold improvements
Lease term
    627       861  
        13,651       17,710  
Less accumulated depreciation and amortization
      4,733       7,365  
Total
    $ 8,918     $ 10,345