Note 1 - Summary of Significant Accounting Policies - Accumulated Other Comprehensive Earnings (Details) - USD ($)	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Balance	$ 74,703,914	$ 72,743,689
Balance	56,649,168	73,370,862
AOCI Attributable to Parent [Member]
Balance	2,920,027	5,520,091
Other comprehensive loss before reclassification	(12,370,634)	(1,729,126)
Amount reclassified from accumulated other comprehensive loss	496	(97,384)
Net current period other comprehensive loss	(12,370,138)	(1,826,510)
Balance	$ (9,450,111)	$ 3,693,581