Note 9 - Debt and Credit Agreements - Outstanding Debt Balances (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Long-term Debt, Total	$ 8,311
Less: current portion	(1,170)	$ (6,650)
Long-term debt, net of current maturities	7,141	177
Line of Credit [Member]
Long-term Debt, Total	0	6,350
Notes Payable, Other Payables [Member]
Long-term Debt, Total	1,094	477
Less: current portion	(88)	(186)
Long-Term Debt [Member]
Long-term Debt, Total	$ 7,217	$ 0

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant