Note 5 - Operating Segments- Income Before Income Taxes (Details) - USD ($)	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Income before income taxes	$ 3,811,508	$ 2,379,554
Reportable Legal Entities [Member]
Income before income taxes	6,194,000	2,485,000
Intersegment Eliminations [Member]
Income before income taxes	$ (2,382,000)	$ (105,000)

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details