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Prepaid Expenses and Other Current Assets | 12 Months Ended
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Dec. 31, 2014
Prepaid Expense and Other Assets, Current [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, |
|  | 2014 |  |  | 2013 |
Prepaid insurance |  | $ | 122 |  |  | $ | 91 |
Prepaid rent |  |  | 39 |  |  |  | 75 |
VAT receivable |  |  | 137 |  |  |  | 250 |
Other |  |  | 215 |  |  |  | 200 |
Total prepaid expenses and other current assets |  | $ | 513 |  |  | $ | 616 |

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