Note 5 - Financing Arrangements - Long-term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Long-term debt gross		$ 7,148
Debt issuance Costs		(79)
Total long-term debt		7,069
Current maturities of long-term debt	$ 0	(1,204)
Long-term debt - net of current maturities		5,865
Real Estate Term Note [Member]
Long-term debt gross		1,071
Paycheck Protection Program CARES Act [Member]
Long-term debt gross		$ 6,077
Total long-term debt	$ 6,077

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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