Note N - Condensed Parent Company Only Financial Information - Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Total non-interest income	$ 6,367	$ 6,103	$ 6,965
Other expense	6,398	6,451	6,175
Total expenses	22,370	22,480	22,251
Income before income taxes	1,679	593	1,678
Net income	1,679	629	2,758
Parent Company [Member]
Distributed income of bank subsidiary	700	901	1,900
Undistributed income of bank subsidiary	1,240	112	942
Other income (loss)	(164)	(252)	47
Total non-interest income	1,776	761	2,889
Other expense	97	132	131
Total expenses	97	132	131
Income before income taxes	1,679	629	2,758
Net income	$ 1,679	$ 629	$ 2,758