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Note 10 - Commitments (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
Years Ending December 31,
 
Minimum Lease
Payment
 
 
Sublease Revenue
 
 
Net Minimum Lease
Payment
 
2017
   $
288
     $ 
(139
)
   $ 
149
  
2018
    
160
      
(143
)
    
17
  
2019
    
135
      
(147
)
    
(12
)
2020
    
11
      
(12
)
    
(1
)
Total Commitment
   $
594
     $
(441
)
   $
153