|
Consolidated Balance Sheets [Parenthetical] (USD $)
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Series A convertible redeemable preferred stock, par value (in dollars per share) | $ 0.001 | $ 0.001 |
| Series A convertible redeemable preferred stock, shares authorized | 50,000,000 | 50,000,000 |
| Series A convertible redeemable preferred stock, shares issued | 32,667,123 | 32,667,123 |
| Series A convertible redeemable preferred stock, shares outstanding | 32,667,123 | 32,667,123 |
| Series A convertible redeemable preferred stock, liquidation value (in dollars) | $ 5,259,406 | $ 5,259,406 |
| Common stock, par value (in dollars per share) | $ 0.001 | $ 0.001 |
| Common stock, shares authorized | 250,000,000 | 250,000,000 |
| Common stock, shares issued | 83,586,155 | 83,586,155 |
| Common stock, shares outstanding | 81,861,335 | 81,861,335 |