Note H - Earnings Per Share - Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Weighted average common shares outstanding (in shares)	13,877	13,737	13,845	13,706
Dilutive effect of restricted stock units (in shares)	156	150	162	140
Weighted average common shares outstanding, assuming dilution (in shares)	14,033	13,887	14,007	13,846