Note I - Earnings Per Share - Reconciliation of Basic to Diluted Weighted Average Shares Outstanding (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Basic (in shares)	5,352,937	5,346,043	5,352,937	5,334,774
Effect of diluted securities (in shares)	2,069	0	0	0
Weighted average shares outstanding - diluted (in shares)	5,355,006	5,346,043	5,352,937	5,334,774