Note 7 - Debt and Other Financing Arrangements - Schedule of Debt Repayments (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Less: current portion of long-term debt from equipment financing	$ (461)	$ (664)
Long-term debt from equipment financing, net of current portion	453	$ 599
Equipment Loan Arrangement [Member]
July 1, 2022, through December 31, 2022	316
2023	293
2024	305
Long-term debt from equipment financing	914
Less: current portion of long-term debt from equipment financing	(461)
Long-term debt from equipment financing, net of current portion	$ 453

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

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