Note 12 - Stock Compensation - Compensation Expense (Details) - USD ($)	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Non-cash stock compensation expense	$ 429,344	$ 296,899
Common Class A [Member] \| Common Stock [Member]
Class A shares issued to Directors and employees related to stock compensation plans (in shares)	23,700	17,250

Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP).

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