PUBLIC OFFERING AND PRIVATE PLACEMENT - Summary of Warrants Outstanding and Exercisable (Details) - $ / shares	Mar. 31, 2022	Dec. 31, 2021
Warrants Outstanding and Exercisable [Abstract]
Warrant Outstanding (in shares)	34,174,260
Warrants Exercisable (in shares)	34,174,260
2019
Warrants Outstanding and Exercisable [Abstract]
Warrant Outstanding (in shares)	5,750,000
Warrants Exercisable (in shares)	5,750,000
Weighted Average Remaining Contractual Life	4 years 4 months 20 days
Weighted Average Exercise Price (in dollars per share)	$ 13.00
2020
Warrants Outstanding and Exercisable [Abstract]
Warrant Outstanding (in shares)	4,149,378
Warrants Exercisable (in shares)	4,149,378
Weighted Average Remaining Contractual Life	3 years 7 months 2 days
Weighted Average Exercise Price (in dollars per share)	$ 6.50
Issued On November 2, 2020
Warrants Outstanding and Exercisable [Abstract]
Warrant Outstanding (in shares)	1,659,752
Warrants Exercisable (in shares)	1,659,752
Weighted Average Remaining Contractual Life		0 years
Weighted Average Exercise Price (in dollars per share)	$ 0
2021
Warrants Outstanding and Exercisable [Abstract]
Warrant Outstanding (in shares)	2,055,920
Warrants Exercisable (in shares)	2,055,920
Weighted Average Remaining Contractual Life	6 years 8 months 8 days
Weighted Average Exercise Price (in dollars per share)	$ 1.69
Issued On December 7, 2021
Warrants Outstanding and Exercisable [Abstract]
Warrant Outstanding (in shares)	20,559,210
Warrants Exercisable (in shares)	20,559,210
Weighted Average Remaining Contractual Life		0 years
Weighted Average Exercise Price (in dollars per share)	$ 0