|
CONSOLIDATED BALANCE SHEETS [Parenthetical] (USD $)
|
Mar. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Common stock, par value (in dollars per share) | $ 0.00005 | $ 0.00005 |
| Common stock, shares authorized | 800,000,000 | 800,000,000 |
| Common stock, shares issued | 126,737,158 | 126,444,309 |
| Common stock, shares outstanding | 126,737,158 | 126,444,309 |