Note 12 - Right-of-use Assets - Operating Lease Liability (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Opening balance for the period	$ 103,918	$ 127,615
Payments on operating lease liabilities	(5,248)	(23,697)
Closing balance for the period	98,670	103,918
Less: current portion	(32,064)	(30,083)
Operating lease liabilities - non-current portion (Note 12)	$ 66,606	$ 73,835