|
Accrued Expenses and Other Current Liabilities (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Accrued Expenses and Other Current Liabilities | ||
| Research costs - Nordic | $ 11,536 | $ 17,998 |
| Research costs - other | 3,336 | 1,599 |
| Payroll and employee benefits | 1,659 | 1,005 |
| Professional fees | 1,304 | 426 |
| Accrued interest on notes payable | 234 | 852 |
| Other | 198 | 127 |
| Total accrued expenses and other current liabilities | $ 18,267 | $ 22,007 |