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Note 9 - Commitments and Contingencies (Tables)
9 Months Ended
Sep. 30, 2012
Operating Leases of Lessee Disclosure [Table Text Block]
   
Amount
 
Three months ended December 31,   2012
 
$
 2,638
 
Year ended December 31:
       
2013
   
 9,595
 
2014
   
 8,081
 
2015
   
 6,738
 
2016
   
 4,087
 
 Thereafter
   
 5,411
 
Total
 
$
 36,550