Note 5 - Bank Debt - Bank Debt, Less Debt Issuance Costs (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current bank debt	$ 25,725	$ 36,750
Less unamortized debt issuance cost	(2,627)	(2,439)
Net current portion	23,098	34,311
Long-term bank debt	86,013	100,988
Less unamortized debt issuance cost	(1,346)	(3,681)
Net long-term portion	84,667	97,307
Total	111,738	137,738
Less total unamortized debt issuance cost	(3,973)	(6,120)
Net bank debt	$ 107,765	$ 131,618