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Note 5 - Operating Leases (Tables)
12 Months Ended
Dec. 31, 2014
Leases [Abstract]  
Operating Leases of Lessee Disclosure [Table Text Block]
Years Ending
December 31
 
Amount
(in
thousands)
 
       
2015
 
$
1,067
 
2016
   
822
 
2017
   
554
 
2018
   
568
 
2019
   
582
 
Thereafter
   
699
 
   
$
4,292