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Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2019
Accrued Liabilities [Abstract] |
Schedule of Accrued Liabilities | Accrued liabilities were as follow (in thousands):
| December 31,
| 2019 |  | 2018
Salaries, employee benefits and related taxes | $ | 1,834 |  |  | $ | 1,758 |
Operating lease liabilities - current | 354 |  |  | — |
CIRM upfront funding - current | 1,600 |  |  | 2,583 |
Other | 698 |  |  | 516 |
| $ | 4,486 |  |  | $ | 4,857 |

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