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Other Assets (Tables) | 12 Months Ended
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Dec. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
Schedule of other current assets | Other current assets as of December 31, 2019 and 2018 were as follows (in thousands):
|  | As of December 31, |
|  | 2019 |  |  | 2018 |
Prepaid expenses |  | $ | 817 |  |  | $ | 1,092 |
Advance payments to vendors |  |  | 666 |  |  |  | — |
Prepaid rent and other |  |  | 12 |  |  |  | 210 |
Other receivables |  |  | 329 |  |  |  | 701 |
Total other current assets |  | $ | 1,824 |  |  | $ | 2,003 |
Schedule of other assets, noncurrent | Other noncurrent assets as of December 31, 2019 and 2018 were as follows (in thousands):
|  | As of December 31, |
|  | 2019 |  |  | 2018 |
Security deposits |  | $ | 1,793 |  |  | $ | 1,756 |
Other long-term assets |  |  | 36 |  |  |  | 71 |
Total other assets |  | $ | 1,829 |  |  | $ | 1,827 |

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