|
CONSOLIDATED BALANCE SHEETS [Parenthetical] (USD $)
|
Mar. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|---|
| Common stock, par value (in dollars per share) | $ 0.00005 | $ 0.00005 | $ 0.00005 |
| Common stock, shares Authorized | 800,000,000 | 800,000,000 | 800,000,000 |
| Common stock, shares Issued | 151,854,176 | 150,085,035 | 126,444,309 |
| Common stock, shares outstanding | 151,854,176 | 150,085,035 | 126,444,309 |