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Note 5 - Stock Options (Details Textual)
3 Months Ended 9 Months Ended
Sep. 30, 2020
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2020
USD ($)
shares
Sep. 30, 2020
CAD ($)
$ / shares
shares
Sep. 30, 2019
USD ($)
Share-based Payment Arrangement, Expense | $ $ 120,098 $ 120,098  
Rolling Stock Option Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares) | shares     3,600,000 3,600,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number (in shares) | shares       3,600,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price (in CAD per share) | $ / shares       $ 0.35  
Rolling Stock Option Plan [Member]          
Share-based Compensation Arrangement, Percent of Issued and Outstanding Common Shares Reserved   10.00%     10.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Fair Value | $       $ 909,900  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price (in CAD per share) | $ / shares       $ 0.35  
Rolling Stock Option Plan [Member] | Share-based Payment Arrangement, Option [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate     125.00% 125.00%  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Year)     3 years 3 years  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Discount for Postvesting Restrictions     0.27% 0.27%  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate     0.00% 0.00%  
Share-based Payment Arrangement, Expense     $ 120,098 $ 160,990  
Rolling Stock Option Plan [Member] | Share-based Payment Arrangement, Option [Member] | Share-based Payment Arrangement, Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage     20.00% 20.00%