Note 11 - Paycheck Protection Program (PPP) Loan - PPP Loan Balance (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Notes Payable, Total	$ 1,588	$ 1,584
Current portion	1,588	950
Long-term portion		634
Paycheck Protection Program CARES Act [Member]
Principal	1,572	1,572
Accrued interest	16	12
Notes Payable, Total	1,588	1,584
Current portion	1,588	950
Long-term portion		$ 634

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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