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Note 2 - Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2015
Notes Tables  
Schedule of Goodwill [Table Text Block]
 
 
Amounts
 
 
 
(in thousands)
 
         
Balance at December 31, 2013
   $ 3,813  
Adjustments
     -  
         
Balance at December 31, 2014
     3,813  
Adjustments
     -  
         
Balance at December 31, 2015
   $ 3,813