4. STOCKHOLDERS' EQUITY (Details 2) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2015 |
Sep. 30, 2014 |
Sep. 30, 2015 |
Sep. 30, 2014 |
|
| Stock-based compensation expense | ||||
| Total stock-based compensation expense | $ 447,932 | $ 327,060 | $ 1,221,662 | $ 921,394 |
| Research and development | ||||
| Stock-based compensation expense | ||||
| Total stock-based compensation expense | 184,302 | 66,202 | 514,107 | 191,112 |
| Plasma centers | ||||
| Stock-based compensation expense | ||||
| Total stock-based compensation expense | 12,457 | 8,920 | 35,813 | 26,468 |
| General and administrative | ||||
| Stock-based compensation expense | ||||
| Total stock-based compensation expense | $ 251,173 | $ 251,938 | $ 671,742 | $ 703,814 |