Consolidated Statements of Operations - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Income Statement [Abstract] | ||
| Revenue | $ 0 | $ 0 |
| Operating expenses: | ||
| Research and development | 23,243 | 26,037 |
| General and administrative | 8,266 | 6,565 |
| Impairment of intangible asset | 310 | 60 |
| Total operating expenses | 31,819 | 32,662 |
| Loss from operations | (31,819) | (32,662) |
| Other income (expense): | ||
| Interest expense, net | (133) | (151) |
| Other (expense) income, net | (72) | 13 |
| Change in fair value of warrant liability, other liability and net sales distribution payment liability | 10,007 | |
| Total other (expense) income, net | (205) | 9,869 |
| Net loss | (32,024) | (22,793) |
| Earnings (loss) attributable to common stockholders-basic and diluted (Note 3) | $ (32,024) | $ (10,510) |
| Earnings (loss) per common share-basic and diluted (Note 3): | $ (2.42) | $ (6.85) |
| Weighted-average shares used to compute earnings per common share-basic and diluted (Note 3): | 13,231,126 | 1,534,108 |