Note 10 - Income Taxes - Provision for Income Taxes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Current	$ 1,140,000	$ 1,516,000
Deferred income taxes	(27,000)	228,000
Provision for income taxes	$ 1,113,000	$ 1,744,000