Note 4 - Intangible Assets - Components of Intangible Assets (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Accumulated Amortization	$ (261,878)	$ (685,901)
Net Carrying Amount	272,969
Total, Gross Carrying Costs	534,847	4,289,141
Total, Net Carrying Amount	272,969	253,865
Impairment	0	(3,349,375)
Trade Names 1 [Member]
Tradename	0	80,000
Tradename	0	(22,083)
Tradename	0	0
Impairment, indefinite		(57,917)
Patents and Trademarks [Member]
Gross Carrying Costs	534,847	509,141
Accumulated Amortization	(261,878)	(255,276)
Net Carrying Amount	272,969	253,865
Impairment, finite		0
Developed Technology Rights [Member]
Gross Carrying Costs	0	3,500,000
Accumulated Amortization	0	(386,459)
Net Carrying Amount	0	0
Impairment, finite		(3,113,541)
Customer Relationships [Member]
Gross Carrying Costs	0	200,000
Accumulated Amortization	0	(22,083)
Net Carrying Amount	$ 0	0
Impairment, finite		$ (177,917)