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Prepaid Expenses and Other Current Assets | 12 Months Ended
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Dec. 31, 2021
Prepaid Expenses and Other Current Assets [Abstract] |
Prepaid Expenses and Other Current Assets |
3. | Prepaid Expenses and Other Current Assets
Prepaid expense and other current assets consist of the following (in thousands):
|  | As of December 31, |
|  | 2021 |  |  | 2020 |
Prepaid insurance |  | $ | 189 |  |  | $ | 255 |
Prepaid rent |  |  | 6 |  |  |  | 11 |
VAT receivable |  |  | 345 |  |  |  | 433 |
Advances |  |  | 3 |  |  |  | 216 |
Advances to suppliers |  |  | 38 |  |  |  | 43 |
Other |  |  | 255 |  |  |  | 203 |
Total prepaid expenses and other current assets |  | $ | 836 |  |  | $ | 1,161 |

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