|
Summary of Significant Accounting Policies Revenue (Details) (BARDA Contract)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
|
BARDA Contract
|
|||
| Revenue [Line Items] | |||
| Concentration risk, percentage | 100.00% | 100.00% | 96.00% |