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v3.3.1.900

Organization and Operations (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Aug. 27, 2014 | Jun. 30, 2015 | Dec. 31, 2015 | Dec. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2010
Proceeds from Issuance Initial Public Offering |  |  | $ 61,744 |  |  |
Preferred Stock warrants converted (in shares) | 24,566 |  |  |  |  |
Number of shares after conversion of issued warrants (in shares) |  | 24,566 |  |  |  | 34,839
Accumulated deficit |  |  | $ (108,010) |  | $ (75,380) |
Issuance of preferred stock (in shares) |  |  | 0 |  | 0 |
Proceeds from issuance of preferred stock |  |  | $ 12,331 | $ 41,422 |  |
Series B Convertible Preferred Stock |  |  |  |  |  |
Preferred Stock warrants converted (in shares) |  |  | 47,192,536 |  |  |
Initial public offering |  |  |  |  |  |
Common stock sold (in shares) |  | 5,750,000 |  |  |  |
Selling price (in dollars per share) |  | $ 12.00 |  |  |  |
Net proceeds from public offering |  | $ 61,700 |  |  |  |
Underwriting discounts, commissions and offering-related expenses payable |  | $ 7,300 |  |  |  |
Conversion of convertible preferred stock into common stock (in shares) |  | 9,029,549 |  |  |  |
Over-Allotment option for underwriters |  |  |  |  |  |
Common stock sold (in shares) |  | 750,000 |  |  |  |
Preferred Stock | Initial public offering |  |  |  |  |  |
Preferred Stock warrants converted (in shares) |  | 315,688 |  |  |  |

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