4. STOCKHOLDERS' EQUITY (Details 2) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Stock-based compensation expense | ||||
| Total stock-based compensation expense | $ 262,963 | $ 447,932 | $ 996,088 | $ 1,221,662 |
| Research and development | ||||
| Stock-based compensation expense | ||||
| Total stock-based compensation expense | 95,076 | 184,302 | 383,909 | 514,107 |
| Plasma centers | ||||
| Stock-based compensation expense | ||||
| Total stock-based compensation expense | 15,289 | 12,457 | 40,044 | 35,813 |
| General and administrative | ||||
| Stock-based compensation expense | ||||
| Total stock-based compensation expense | $ 152,598 | $ 251,173 | $ 572,135 | $ 671,742 |