Note 5 - Bank Debt - Bank Debt, Less Debt Issuance Costs (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current bank debt	$ 35,500	$ 25,725
Less unamortized debt issuance cost	(2,469)	(2,627)
Net current portion	33,031	23,098
Long-term bank debt	49,713	86,013
Less unamortized debt issuance cost	0	(1,346)
Net long-term portion	49,713	84,667
Total	85,213	111,738
Less total unamortized debt issuance cost	(2,469)	(3,973)
Net bank debt	$ 82,744	$ 107,765