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Note 6 - Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2020
Notes Tables  
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
   
Rental
Commitments
 
2021
  $
118,519
 
2022
   
39,735
 
Total
   
158,254
 
Less: imputed interest
   
(9,092
)
    $
149,162