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Note 7 - Property and Equipment
3 Months Ended
Mar. 31, 2016
Notes to Financial Statements  
Property, Plant and Equipment Disclosure [Text Block]
7.
PROPERTY AND EQUIPMENT
 
   
March 31, 2016
   
December 31, 2015
 
   
(In thousands)
 
Property and equipment
  $ 35,928     $ 34,591  
Accumulated depreciation
    (24,297 )     (23,466 )
Property and equipment, net
  $ 11,631     $ 11,125