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Note 9 - Accrued Expenses (Tables) | 6 Months Ended
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Jun. 30, 2020
Notes Tables |
Schedule of Accrued Liabilities [Table Text Block] |
|  | June 30, 2020 |  |  | December 31, 2019 |
Compensation and related expenses |  | $ | 3,212 |  |  | $ | 5,830 |
Professional fees |  |  | 3,052 |  |  |  | 3,850 |
Operating lease liability - current |  |  | 1,476 |  |  |  | 1,141 |
Clinical trial costs |  |  | 1,113 |  |  |  | 788 |
Current portion of acquisition related contingent consideration (Note 4) |  |  | 11,688 |  |  |  | - |
Finance lease liability - current |  |  | 186 |  |  |  | - |
Other |  |  | 1,018 |  |  |  | 836 |
Total |  | $ | 21,745 |  |  | $ | 12,445 |

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