Stockholders' Equity (Deficit) (Details) shares in Thousands |
12 Months Ended |
|---|---|
|
Dec. 31, 2015
$ / shares
shares
| |
| Class of Warrant or Right | |
| Outstanding | 3,962 |
| Class of Warrant or Right Issued Date One [Member] | |
| Class of Warrant or Right | |
| Date Issued | Apr. 13, 2012 |
| Expiration Date | Apr. 13, 2018 |
| Exercise price of common stock Warrants adjusted (in dollars per share) | $ / shares | $ 4.89 |
| Outstanding | 983 |
| Class of Warrant or Right Issued Date Two [Member] | |
| Class of Warrant or Right | |
| Date Issued | Oct. 08, 2014 |
| Expiration Date | Oct. 08, 2019 |
| Exercise price of common stock Warrants adjusted (in dollars per share) | $ / shares | $ 3.30 |
| Outstanding | 115 |
| Class of Warrant or Right Issued Date Three [Member] | |
| Class of Warrant or Right | |
| Date Issued | Oct. 08, 2014 |
| Expiration Date | Oct. 08, 2020 |
| Exercise price of common stock Warrants adjusted (in dollars per share) | $ / shares | $ 3.30 |
| Outstanding | 2,864 |