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Note 17 - Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2016
Notes Tables  
Operating Leases of Lessee Disclosure [Table Text Block]
2017
  $
789
 
2018
   
1,099
 
2019
   
1,019
 
2020
   
981
 
2021
   
997
 
2022 and thereafter
   
4,882
 
Total
  $
9,767