Consolidated Balance Sheets (Parenthetical) - USD ($) |
Sep. 30, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|---|---|---|---|
| Statement Of Financial Position [Abstract] | |||
| Unamortized discount | $ 33,333 | $ 12,133 | $ 13,332 |
| Preferred stock, par value (in dollars per share) | $ 0.001 | $ 0.001 | $ 0.001 |
| Preferred stock, shares authorized | 850,000 | 850,000 | 850,000 |
| Preferred stock, shares issued | |||
| Preferred stock, shares outstanding | |||
| Common stock, par value (in dollars per share) | $ 0.001 | $ 0.001 | $ 0.001 |
| Common stock, shares authorized | 50,000,000 | 50,000,000 | 50,000,000 |
| Common stock, shares issued | 17,471,718 | 16,878,119 | 14,935,038 |
| Common stock, shares outstanding | 17,471,718 | 16,878,119 | 14,935,038 |