|
The dilutive potential common shares are summarized as follows (Details)
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|---|
| The dilutive potential common shares are summarized as follows | |||
| Stock options outstanding | 4,703,326 | 1,986,255 | 1,948,997 |
| Restricted stock outstanding | 650,002 | 0 | 280,771 |
| Common stock warrants (1) | 24,137,878 | 9,421,008 | 7,128,563 |
| Preferred stock (2) | 10,972,859 | 0 | 0 |
| Number of dilutive potential common shares | 40,464,065 | 11,407,263 | 9,358,331 |