|
Consolidated Balance Sheets [Parenthetical] (USD $)
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Preferred stock, shares authorized | 7,000,000 | 7,000,000 |
| Preferred stock, shares issued | 0 | 0 |
| Preferred stock, shares outstanding | 0 | 0 |
| Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01 |
| Common stock, shares authorized | 150,000,000 | 150,000,000 |
| Common Stock, Shares, Issued | 77,886,031 | 68,189,314 |
| Common stock, shares outstanding | 77,886,031 | 68,189,314 |