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Note 7 - Property and Equipment (Tables)
6 Months Ended
Jun. 30, 2015
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
June 30, 2015
   
December 31, 2014
 
   
(In thousands)
 
Property and equipment
  $ 35,634     $ 34,732  
Accumulated depreciation
    (23,891 )     (22,589 )
Property and equipment, net
  $ 11,743     $ 12,143