STOCK AWARD PLAN AND STOCK-BASED COMPENSATION - Schedule of Stock-Based Compensation Expense Included in the Company's Consolidated Statements of Operations (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation expense	$ 1,071,605	$ 1,384,060	$ 2,124,261	$ 2,900,124
Research and Development
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation expense	514,806	641,373	1,015,979	1,285,549
General and Administrative
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation expense	$ 556,799	$ 742,687	$ 1,108,282	$ 1,614,575