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Note 5 - Capital Leased Assets (Tables)
12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Capital Leased Assets [Table Text Block]
 
 
2016
 
 
2015
 
Leased property under capital leases
  $
10,783
    $
10,352
 
Less accumulated amortization
   
(4,748
)    
(4,310
)
Leased property under capital leases, net
  $
6,035
    $
6,042