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Note 15 - Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]  
Operating Leases of Lessee Disclosure [Table Text Block]
   
Minimum Rental
 
   
(In thousands)
 
Years ended December 31:
     
2015
  $ 4,440  
2016
    4,513  
2017
    4,383  
2018
    4,448  
2019
    5,332  
Thereafter
    30,687  
Total minimum payments required
  $ 53,803