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Prepaid Expenses and Other Current Assets | 12 Months Ended
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Dec. 31, 2016
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Prepaid Expenses and Other Current Assets | 6. Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets comprised of the following:
|  | December 31, |
|  | 2016 |  |  | 2015 |
Prepaid insurance |  | $ | 514 |  |  | $ | 100 |
Prepaid expenses |  | 861 |  |  |  | 533 |
Prepaid income taxes |  |  | — |  |  |  | 888 |
Other receivables |  | 28 |  |  |  | 3 |
Total prepaid expenses and other current assets |  | $ | 1,403 |  |  | $ | 1,524 |

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