Note 11 - Commitments - Operating Lease Right-of-use Assets and Lease Liabilities (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Right of use assets	$ 495,377
Right of use leases payable – current portion	60,675
Right of use leases payable - less current portion	399,733
Total right of use lease liabilities	$ 460,408
Weighted average remaining lease terms (years) (Year)	12 years
Weighted average discount rate	5.50%