Note 7 - Line of Credit and Long-term Debt - Long-term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt, carrying amount	$ 7,246	$ 1,269
Less: unamortized debt issuance costs	(31)	0
Total debt	7,215	1,269
Less: current portion of debt	(862)	(614)
Total long-term debt	$ 6,353	655
The 2019 Term Loan [Member]
Interest rate	4.00%
Debt, carrying amount	$ 1,750	0
The 2018 Term Loan [Member]
Interest rate	4.00%
Debt, carrying amount	$ 2,813	0
Financed Insurance Premium [Member]
Interest rate	4.00%
Debt, carrying amount	$ 373	0
Paycheck Protection Program CARES Act [Member]
Interest rate	1.00%
Debt, carrying amount	$ 0	295
Freezer Equipment Loan [Member]
Interest rate	5.70%
Debt, carrying amount	$ 612	365
Manufacturing Equipment Loans [Member]
Interest rate	5.70%
Debt, carrying amount	$ 355	439
Freezer Installation Loan [Member]
Interest rate	6.30%
Debt, carrying amount	$ 1,334	156
Other Loans [Member]
Debt, carrying amount	$ 9	$ 14

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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Contractual interest rate for funds borrowed, under the debt agreement.

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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, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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