WARRANT DERIVATIVE LIABILITY - Assumptions Used to Calculate Fair Value of 2019 Warrants (Details) - 2019 Warrants [Member}	Mar. 31, 2022 item Y	Dec. 31, 2021 Y item
Number of shares underlying the warrants
WARRANT DERIVATIVE LIABILITY
Measurement input used to calculate fair value of warrants	322,807	322,807
Current stock price
WARRANT DERIVATIVE LIABILITY
Measurement input used to calculate fair value of warrants	0.46	0.22
Exercise price
WARRANT DERIVATIVE LIABILITY
Measurement input used to calculate fair value of warrants	0.3983	0.3983
Expected volatility
WARRANT DERIVATIVE LIABILITY
Measurement input used to calculate fair value of warrants	103	94
Risk-free interest rate
WARRANT DERIVATIVE LIABILITY
Measurement input used to calculate fair value of warrants	2.42	1.26
Expected term (in years)
WARRANT DERIVATIVE LIABILITY
Measurement input used to calculate fair value of warrants | Y	2.16	2.41