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Note 3 - New Accounting Standards (Tables)
3 Months Ended
Mar. 31, 2019
Notes Tables  
Lessee, Lease, Liability, Maturity [Table Text Block]
    Operating   Finance
April 1, 2019 to December 31, 2019   $
920
    $
89
 
2020    
1,135
     
81
 
2021    
369
     
31
 
Total    
2,424
     
201
 
Less: Present value discount    
(111
)    
(7
)
Lease liability   $
2,313
    $
194