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Note 5 - Line of Credit and Long-term Debt (Tables) | 6 Months Ended
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Jun. 30, 2020
Notes Tables |
Schedule of Maturities of Long-term Debt [Table Text Block] |
Year ending December 31, |  |  |  |
Remainder of 2020 |  | $ | 1,588 |
2021 |  |  | 3,176 |
2022 |  |  | 3,176 |
2023 |  |  | 3,176 |
2024 |  |  | 4,234 |
Total future principal payments |  |  | 15,350 |
Less: Unamortized debt issuance costs |  |  | (185 | )
Less: Current portion of long-term debt |  |  | (3,133 | )
Long-term debt |  | $ | 12,032 |

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