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Accrued Expenses and Other Current Liabilities | 12 Months Ended
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Dec. 31, 2014
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Accrued Expenses and Other Current Liabilities | Note 8. Accrued Expenses and Other Current Liabilities Accrued expenses at December 31 are summarized below:
|  | 2014 |  |  | 2013 |
External services |  | $ | 2,152,770 |  |  | $ | 1,191,048 |
Employee compensation |  |  | 2,415,826 |  |  |  | 2,655,242 |
Other |  |  | 301,114 |  |  |  | 221,626 |
Total accrued expenses and other current liabilities |  | $ | 4,869,710 |  |  | $ | 4,067,916 |

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