Note 9 - Income Taxes - Reconciliation of Effective Tax Rate (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Income tax (benefit) expense at statutory rate of 26.5%			$ (5,019,103)	$ 3,776,156
Valuation allowance			5,020,280	(3,776,156)
SR&ED credits			(19,198)
Other			(18,335)
Income tax benefit	$ 0	$ 0	(36,356)
Growth [Member]
Income tax (benefit) expense at statutory rate of 26.5%			(5,020,280)	3,776,156
Valuation allowance			5,020,280	(3,776,156)
SR&ED credits			0	0
Other			0	0
Income tax benefit			0	0
Digital [Member]
Income tax (benefit) expense at statutory rate of 26.5%			1,177	0
Valuation allowance			0	0
SR&ED credits			(19,198)	0
Other			(18,335)	0
Income tax benefit			$ (36,356)	$ 0