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Note 8 - Bridge Financing - Convertible Debentures (Tables)
6 Months Ended
Jun. 30, 2020
Notes Tables  
Convertible Debt [Table Text Block]
Principal value   $
1,200,000
 
Debt discount    
(769,334
)
Net original carrying value    
430,666
 
Amortization of debt discount    
5,045
 
Carrying value at June 30, 2020   $
435,711