Note 6 - Revolving Line of Credit and Long-term Debt - Long-term Debt Maturities (Details) - Senior Secured Credit Facility [Member] - USD ($) $ in Thousands	Dec. 31, 2020	Jun. 22, 2020
Less unamortized issuance costs		$ (1,800)
Term Loan [Member]
2021	$ 2,500
2022	3,000
2023	3,500
2024	4,000
2025	26,000
Total before unamortized issuance costs	39,000
Less unamortized issuance costs	(968)
Less current portion of long-term bebt	(2,500)
Total long-term debt	$ 35,532

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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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 noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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