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Note 6 - Property and Equipment (Tables)
6 Months Ended
Jun. 30, 2012
Property, Plant and Equipment [Table Text Block]
   
June 30, 2012
   
December 31, 2011
 
   
(In thousands)
 
Property and equipment
  $ 30,425     $ 29,229  
Accumulated depreciation
      (17,301 )     (15,616 )
Property and equipment, net
  $ 13,124     $ 13,613