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Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2020
Payables And Accruals [Abstract] |
Schedule of Accrued Liabilities | Amounts reported in ‘Accrued liabilities’ in the balance sheets were (in thousands):
|  | December 31, |
|  | 2020 |  |  | 2019 |
Compensation related accruals |  | $ | 3,975 |  |  | $ | 1,165 |
Accrued clinical trial expense |  |  | 715 |  |  |  | 620 |
Other expenses |  |  | 3,099 |  |  |  | 2,352 |
Warrant liability, current |  | - |  |  |  | 43 |
Total accrued liabilities |  | $ | 7,789 |  |  | $ | 4,180 |

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