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Note 6 - Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2019
Notes Tables  
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
   
Rental
Commitments
 
2020
  $
116,464
 
2021
   
118,519
 
2022
   
39,735
 
Total
   
274,718
 
Less: imputed interest
   
(27,675
)
    $
247,043
 
   
Rental
Commitments
 
2019
  $
114,409
 
2020
   
116,464
 
2021
   
118,519
 
2022
   
39,735
 
Total
  $
389,127