Quarterly report pursuant to Section 13 or 15(d)

Note 3 - Leases (Details Textual)

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Note 3 - Leases (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Lessee, Operating Lease, Term of Contract (Month) 4 years 30 days   4 years 30 days  
Operating Lease, Weighted Average Remaining Lease Term (Year) 1 year   1 year  
Operating Lease, Weighted Average Discount Rate, Percent 5.50%   5.50%  
Operating Lease, Expense $ 26,122 $ 26,122 $ 52,244 $ 52,244