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Note 7 - Commitments and Contingencies (Tables)
6 Months Ended
Jun. 30, 2021
Notes Tables  
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
  

Rental

Commitments

 

2021

  69,365 

2022

  39,735 

Total

  109,100 

Less: imputed interest

  (13,271)
  $95,829