Long-Term Debt (Details Textual) - USD ($) $ in Thousands |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
Schedule of Capitalization, Long-term Debt [Line Items] | |||
Repayments of loans | $ 277 | $ 747 | $ 355 |
Research and development arrangement, waiver of loan repayment | 1,498 | ||
French Ministry Of Research | |||
Schedule of Capitalization, Long-term Debt [Line Items] | |||
Proceeds from loans or conditional grants | $ 815 | $ 1,118 |