Note 4 - Bank Debt - Bank Debt, Less Debt Issuance Costs (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current bank debt	$ 26,000	$ 35,500
Less unamortized debt issuance cost	(1,562)	(2,469)
Net current portion	24,438	33,031
Long-term bank debt	65,500	49,713
Less unamortized debt issuance cost	(2,047)	0
Net long-term portion	63,453	49,713
Total	91,500	85,213
Less total unamortized debt issuance cost	(3,609)	(2,469)
Net bank debt	$ 87,891	$ 82,744