Note O - Employee and Director Benefit Plans - Reconciliation of Accumulated Other Comprehensive Income (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
December 31, 2021:	$ 91,729
Beginning balance total shareholders' equity	55,194
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
December 31, 2021:	(606)
Amortization payment	26
Liability (Gain)/Loss	(1,121)
Beginning balance total shareholders' equity	(1,701)
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member]
December 31, 2021:	(618)
Amortization payment	81
Liability (Gain)/Loss
Beginning balance total shareholders' equity	(537)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
December 31, 2021:	(1,224)
Amortization payment	107
Liability (Gain)/Loss	(1,121)
Beginning balance total shareholders' equity	$ (2,238)