Note 8 - Paycheck Protection Program Loan - Summary of Paycheck Protection Program Loan (Details) - Paycheck Protection Program CARES Act [Member] $ in Thousands	Dec. 31, 2020 USD ($)
2021	$ 938
2022	426
Total payments	1,364
Less: Amount representing interest	(20)
Present value of obligations	1,344
Paycheck Protection Program loan,current portion	918
Paycheck Protection Program loan, noncurrent portion	$ 425

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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