Note H - Earnings Per Share - Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Weighted average common shares outstanding (in shares)	13,871	13,733	13,828	13,691
Dilutive effect of stock options and restricted stock units (in shares)	183	109	195	102
Weighted average common shares outstanding, assuming dilution (in shares)	14,054	13,842	14,023	13,793