Note 8 - Debt and Credit Agreements - Outstanding Debt Balances (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Long-term debt	$ 7,690	$ 12,153
Less: current maturities	(1,428)	(5,903)
Long-term debt, net of current maturities	6,262	6,250
Line of Credit [Member]
Long-term debt	0	4,657
Notes Payable, Other Payables [Member]
Long-term debt	1,826	1,361
Less: current maturities	(345)	(163)
Long-Term Debt [Member]
Long-term debt	$ 5,864	$ 6,135