STOCK-BASED COMPENSATION (Details 4) - USD ($) |
12 Months Ended | |
---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
Stock-based compensation expense in operating expenses: | ||
Total Stock-based Compensation Expense | $ 1,168,616 | $ 874,386 |
Research and development [Member] | ||
Stock-based compensation expense in operating expenses: | ||
Total Stock-based Compensation Expense | 727,216 | 608,456 |
General and administrative [Member] | ||
Stock-based compensation expense in operating expenses: | ||
Total Stock-based Compensation Expense | $ 441,400 | $ 265,930 |