Note K - Other Income and Expenses - Other Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Other service charges, commissions and fees	$ 91	$ 93	$ 99
Rentals	329	246	298
Other	112	121	84
Totals	$ 532	$ 460	$ 481