|
Stockholders' Equity (Details) (USD $)
|
3 Months Ended |
9 Months Ended |
|
Sep. 30, 2012
|
Sep. 30, 2011
|
Sep. 30, 2012
|
Sep. 30, 2011
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
| Balance at December 31, 2011 |
|
|
$ 29,035,665 |
|
| Net loss |
(10,325,464) |
(6,290,546) |
(23,388,120) |
(20,286,414) |
| Foreign currency translation gain (loss) |
110,625 |
(160,205) |
106,585 |
(74,173) |
| Stock based compensation |
|
|
1,500,237 |
|
| Public offering common stock, net |
|
|
15,790,270 |
|
| Balance at September 30, 2012 |
23,044,637 |
|
23,044,637 |
|
|
Common Stock
|
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
| Balance at December 31, 2011 |
|
|
229,244 |
|
| Balance at December 31, 2011 (shares) |
|
|
22,924,411 |
|
| Net loss |
|
|
|
|
| Foreign currency translation gain (loss) |
|
|
|
|
| Stock based compensation |
|
|
3,229 |
|
| Stock based compensation (shares) |
|
|
322,844 |
|
| Public offering common stock, net |
|
|
149,500 |
|
| Public offering common stock, net (shares) |
|
|
14,950,000 |
|
| Balance at September 30, 2012 |
381,973 |
|
381,973 |
|
| Balance at September 30, 2012 (shares) |
38,197,255 |
|
38,197,255 |
|
|
Additional Paid-in-Capital
|
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
| Balance at December 31, 2011 |
|
|
784,213,871 |
|
| Net loss |
|
|
|
|
| Foreign currency translation gain (loss) |
|
|
|
|
| Stock based compensation |
|
|
1,497,008 |
|
| Public offering common stock, net |
|
|
15,640,770 |
|
| Balance at September 30, 2012 |
801,351,649 |
|
801,351,649 |
|
|
Accumulated Other Comprehensive Income (Loss)
|
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
| Balance at December 31, 2011 |
|
|
928,744 |
|
| Net loss |
|
|
|
|
| Foreign currency translation gain (loss) |
|
|
106,585 |
|
| Stock based compensation |
|
|
|
|
| Public offering common stock, net |
|
|
|
|
| Balance at September 30, 2012 |
1,035,329 |
|
1,035,329 |
|
|
Treasury Stock
|
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
| Balance at December 31, 2011 |
|
|
(1,552,382) |
|
| Balance at December 31, 2011 (shares) |
|
|
165,906 |
|
| Net loss |
|
|
|
|
| Foreign currency translation gain (loss) |
|
|
|
|
| Stock based compensation |
|
|
|
|
| Stock based compensation (shares) |
|
|
|
|
| Public offering common stock, net |
|
|
|
|
| Public offering common stock, net (shares) |
|
|
|
|
| Balance at September 30, 2012 |
(1,552,382) |
|
(1,552,382) |
|
| Balance at September 30, 2012 (shares) |
165,906 |
|
165,906 |
|
|
Accumulated Deficit
|
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
| Balance at December 31, 2011 |
|
|
(754,783,812) |
|
| Net loss |
|
|
(23,388,120) |
|
| Stock based compensation |
|
|
|
|
| Stock based compensation (shares) |
|
|
|
|
| Public offering common stock, net |
|
|
|
|
| Balance at September 30, 2012 |
$ (778,171,932) |
|
$ (778,171,932) |
|