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Note 8 - Line of Credit and Long-term Debt - Future Principal Payments of Long-term Debt (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Less: Current portion of long-term debt | $ (7,701) | $ 0
Long-term debt, net of current portion | 5,888 | $ 0
Term Loan [Member] | Wells Fargo Bank, N.A. [Member] |  |
2021 | 7,746 |
2022 | 3,176 |
2023 | 2,840 |
Total future principal payments | 13,762 |
Less: Unamortized debt issuance costs | (173) |
Less: Current portion of long-term debt | (7,701) |
Long-term debt, net of current portion | $ 5,888 |

X
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