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Other Current Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2021
Other Liabilities Current [Abstract] |
Schedule of Other Current Liabilities | Other current liabilities consist of the following (in thousands):
|  | As of December 31, |
|  | 2021 |  |  | 2020 |
Sales tax payable |  | $ | 551 |  |  | $ | 180 |
Contract liabilities |  |  | — |  |  |  | 51 |
Other current liabilities |  |  | 182 |  |  |  | 44 |
Total other current liabilities |  | $ | 733 |  |  | $ | 275 |

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