RESEARCH AND LICENSE AGREEMENTS WITH ACADEMIC PARTNERS - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Royalty expense	$ 154,000	$ 112,000
1997 Amended License Agreement [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Royalty expense	$ 154,000	1,120,000
Royalty rate for licensed products sold by the Company (in hundredths)	3.00%
Royalty rate for licensed products sold by the Company's sublicenses (in hundredths)	3.00%
2006 Research Agreement [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research agreement, extension term (in years)	2 years
Research agreement, new amendment expiration date	Apr. 30, 2023
Maximum obligation	$ 4,100,000
Research and development expense incurred	$ 195,000	$ 285,000