Summary of Significant Accounting Policies (EPS) (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2014 |
Sep. 30, 2014 |
Jun. 30, 2014 |
Mar. 31, 2014 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Net loss per share | |||||||||||
| Net loss | $ (41,230) | $ (5,811) | $ (19,125) | ||||||||
| Weighted average common shares outstanding, basic and diluted | 15,770,972 | 2,545,371 | 232,512 | ||||||||
| Net loss per share attributable to common stockholders | $ (1.57) | $ (0.43) | $ (0.20) | $ (0.23) | $ (0.34) | $ (6.94) | $ (1.00) | $ (4.59) | $ (2.61) | $ (2.28) | $ (82.25) |
| Potentially dilutive securities | |||||||||||
| Potentially dilutive securities | 2,015,616 | 1,661,254 | 10,395,910 | ||||||||
| Stock options to purchase common stock | |||||||||||
| Potentially dilutive securities | |||||||||||
| Potentially dilutive securities | 1,967,906 | 1,613,544 | 1,422,315 | ||||||||
| Warrants | |||||||||||
| Potentially dilutive securities | |||||||||||
| Potentially dilutive securities | 47,710 | 47,710 | 30,670 | ||||||||
| Convertible preferred stock | |||||||||||
| Potentially dilutive securities | |||||||||||
| Potentially dilutive securities | 8,942,925 | ||||||||||