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Prepaid Expenses and Other Current Assets | 12 Months Ended
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Dec. 31, 2017
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, |
|  | 2017 |  |  | 2016 |
Prepaid insurance |  | $ | 136 |  |  | $ | 125 |
Prepaid rent |  |  | 68 |  |  |  | 46 |
VAT receivable |  |  | 336 |  |  |  | 247 |
Prepaid inventory |  |  | 494 |  |  |  | 715 |
Advances to suppliers |  |  | 545 |  |  |  | 596 |
Other |  |  | 257 |  |  |  | 220 |
Total prepaid expenses and other current assets |  | $ | 1,836 |  |  | $ | 1,949 |

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