Note M - Accrued Liabilities - Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Accrued payroll	$ 12,146	$ 9,702
Accrued employee benefits	3,376	3,265
Accrued state and local taxes	745	588
Accrued interest	341	1,597
Accrued shipping and tariff expenses	27	0
Advance payments	187	216
Accrued commission	649	937
Accrued professional fees	270	409
Accrued product warranty	255	140
Accrued other	553	368
Total accrued liabilities	$ 18,549	$ 17,222