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Note 9 - Operating Lease (Tables)
6 Months Ended
Jun. 30, 2020
Notes Tables  
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
2020
  $
33
 
2021
   
68
 
2022
   
46
 
Total lease payments
  $
147
 
Less interest portion
   
(15
)
Present value of lease obligation
  $
132