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Prepaid Expenses and Other Current Assets (Tables) | 12 Months Ended
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Dec. 31, 2018
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Schedule of Prepaid Expenses and Other Current Assets | Prepaid expenses and other current assets consists of the following (in thousands):
|  | December 31, |  |  | December 31, |
|  | 2018 |  |  | 2017 |
Prepaid insurance |  | $ | 502 |  |  | $ | 437 |
Prepaid research and development |  |  | 122 |  |  |  | 508 |
Other prepaid |  |  | 597 |  |  |  | 321 |
Other current assets |  |  | 388 |  |  |  | 298 |
|  | $ | 1,609 |  |  | $ | 1,564 |

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