v3.8.0.1

Accrued Expenses (Tables) | 12 Months Ended
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Dec. 31, 2017
Accrued Liabilities, Current [Abstract] |
Schedule of Accrued Liabilities [Table Text Block] | Accrued expenses and other current liabilities consist of the following (in thousands):
|  | December 31, |  | December 31, |
|  | 2017 |  | 2016 |
Salaries, benefits and incentive compensation |  | $ | 1,981 |  | $ | 3,007 |
Milestone payment to licensor |  |  | 1,000 |  |  | 1,000 |
Professional fees |  |  | 538 |  |  | 692 |
Royalty fees |  |  | 227 |  |  | 197 |
Deferred revenue |  |  | 365 |  |  | 181 |
Other |  |  | 159 |  |  | 147 |
Total accrued expenses and other current liabilities |  | $ | 4,270 |  | $ | 5,224 |

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- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
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