Note 7 - Intellectual Property (Details Textual) - Weighted Average [Member]	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Developed Technology Rights [Member]
Finite-Lived Intangible Assets, Remaining Amortization Period (Year)	4 years 4 months 24 days	1 year 7 months 6 days
Technology-Based Intangible Assets [Member]
Finite-Lived Intangible Assets, Remaining Amortization Period (Year)	4 years 7 months 6 days	5 years 3 months 18 days