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v3.6.0.2

Borrowings (Details) - USD ($) | Sep. 30, 2016 | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |
Number of warrants issued to purchase common stock (in shares) |  | 14,033 | 14,033
Warrants Associated with Loan Agreement |  |  |
Debt Instrument [Line Items] |  |  |
Number of warrants issued to purchase common stock (in shares) | 122,435 |  |
Exercise price of warrants (in dollars per share) | $ 3.6754 |  |
Warrants issued, expiration period (in years) | 5 years |  |
Secured Debt | Term Loan |  |  |
Debt Instrument [Line Items] |  |  |
Loan agreement term | 48 months |  |
Term loan, face amount | $ 15,000,000 |  |
Cash proceeds limit | $ 20,000,000 |  |
Amortization period, extension (in months) | 6 months |  |
Future principal debt payments on the currently outstanding Term Loan |  |  |
2017 | $ 0 |  |
2018 | 4,500,000 |  |
2019 | 6,000,000 |  |
2020 | 4,500,000 |  |
Total principal payments | 15,000,000 |  |
Final fee due at maturity | 750,000 |  |
Total principal and final fee payment | 15,750,000 |  |
Unamortized discount and debt issuance costs | (1,498,000) |  |
Less current portion | 0 |  |
Loan payable, long term | $ 14,252,000 |  |
Secured Debt | Term Loan | LIBOR |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate (as a percent) | 8.49% |  |

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