|
Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
|
Sep. 30, 2012
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Dec. 31, 2011
|
Dec. 31, 2010
|
|---|---|---|---|
| Statement Of Financial Position [Abstract] | |||
| Allowances for doubtful accounts | $ 42,292 | $ 184,964 | |
| Preferred stock, par value | $ 0.001 | $ 0.001 | $ 0.001 |
| Preferred stock, shares authorized | 10,000,000 | 10,000,000 | 10,000,000 |
| Preferred stock, shares issued | |||
| Preferred stock, shares outstanding | |||
| Common stock, par value | $ 0.001 | $ 0.001 | $ 0.001 |
| Common stock, shares authorized | 100,000,000 | 100,000,000 | 100,000,000 |
| Common stock, shares issued | 43,805,261 | 38,580,261 | 33,210,756 |
| Common stock, shares outstanding | 38,655,261 | 38,580,261 | 33,210,756 |