Note 15 - Right-of-use Assets - Right-of-use Assets (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Opening balance for the year	$ 134,914
Initial recognition of operating lease right-of-use assets		76,557
Capitalization of operating lease right-of-use assets		125,474
Amortization of operating lease right-of use assets	(54,071)	(72,416)
Closing balance for the year	106,315	134,914
Facility in Vancouver, Canada [Member]
Capitalization of operating lease right-of-use assets		125,474
Operating Lease, License Agreement [Member]
Capitalization of operating lease right-of-use assets	$ 25,472	$ 5,299