Note 3 - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) - USD ($)	3 Months Ended	12 Months Ended
Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 8,600,000	$ 8,639,000	$ 0
Income Tax Expense (Benefit), Total	$ (400,000)	$ (443,893)	$ (1,675,381)
Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Year)		10 years	10 years
Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)		2 years
Minimum [Member] \| Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Year)			5 years 3 months 21 days
Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)		15 years
Maximum [Member] \| Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Year)			10 years

Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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