Note 7 - Debt and Other Financing Arrangements - Schedule of Debt Repayments (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Less: Current portion of long-term debt	$ (693)	$ (688)
Total long-term debt, net of current portion	3,096	$ 3,444
Equipment Loan Arrangement [Member]
2021	345
2022	664
2023	294
2024	305
Long-term debt from equipment financing	1,608
Less: Current portion of long-term debt	(693)
Total long-term debt, net of current portion	915
Paycheck Protection Program CARES Act [Member]
Total long-term debt, net of current portion	$ 2,181

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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