Note 5 - Operating Segments- Income Before Income Taxes (Details) - USD ($)	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Income before income taxes	$ 2,379,554	$ 803,717
Reportable Legal Entities [Member]
Income before income taxes	2,485,000	(25,000)
Intersegment Eliminations [Member]
Income before income taxes	$ (105,000)	$ 829,000

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