Note 4 - Intangible Assets and Goodwill - Components of Intangible Assets (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Mar. 31, 2022
Accumulated Amortization	$ (1,102,648)	$ (374,720)
Total, Gross Carrying Costs	7,958,314	4,268,158
Total, Net Carrying Amount	3,962,118	3,893,438
Impairment	(2,893,548)
Trade Names 1 [Member]
Tradename	478,000	80,000
Tradename	(29,343)	(7,083)
Tradename	77,917	72,917
Impairment, indefinite	370,740
Patents and Trademarks [Member]
Gross Carrying Costs	453,314	488,158
Accumulated Amortization	(230,572)	(236,595)
Net Carrying Amount	222,742	251,563
Impairment, finite	0
Developed Technology Rights [Member]
Gross Carrying Costs	6,382,000	3,500,000
Accumulated Amortization	(432,733)	(123,959)
Net Carrying Amount	3,463,542	3,376,041
Impairment, finite	(2,485,725)
Customer Relationships [Member]
Gross Carrying Costs	645,000	200,000
Accumulated Amortization	(410,000)	(7,083)
Net Carrying Amount	197,917	$ 192,917
Impairment, finite	$ (37,083)