| Schedule of Long-term Debt Instruments |
Future minimum payments under the Loan Agreement as of September 30, 2016 are as follows (in thousands): | | | | | Years ending December 31: | | 2016 (remaining three months) | $ | 207 |
| 2017 | 3,839 |
| 2018 | 4,442 |
| 2019 | 3,261 |
| Total future minimum payments | 11,749 |
| Less amount representing interest | 1,749 |
| Notes payable, gross | 10,000 |
| Unamortized discount on notes payable | (348 | ) | Notes payable, balance | 9,652 |
| Less current portion of notes payable | 1,963 |
| Non-current portion of notes payable | $ | 7,689 |
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