FAIR VALUE MEASUREMENTS - Narrative (Details)	Dec. 31, 2021	Dec. 31, 2020
Equity Securities | Discount rate | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.03
Equity Securities | Expected term | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	3
Equity Securities | Price volatility | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.45
Series A warrants | Expected term | Black Scholes Model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	5.79	6.79
Series A warrants | Price volatility | Black Scholes Model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.30	0.29
Series A warrants | Risk free interest rate | Black Scholes Model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.0133	0.0062
Series B warrants | Expected term | Scenario 1 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	5.88	6.87
Series B warrants | Expected term | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.65	1.65
Series B warrants | Price volatility | Scenario 1 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.30	0.29
Series B warrants | Price volatility | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.25	0.50
Series B warrants | Risk free interest rate | Scenario 1 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.0134	0.0063
Series B warrants | Risk free interest rate | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.0025	0.0012
Series B warrants | Discount for lack of marketability | Scenario 1 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input		0.10
Series B warrants | Discount for lack of marketability | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input		0.10
Embedded Derivative | Discount rate | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.096
Embedded Derivative | Expected term | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	5.87	6.87
Embedded Derivative | Price volatility | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.30	0.29
Embedded Derivative | Risk free interest rate | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.013	0.0062
Embedded Derivative | Expected dividend rate | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0	0
Embedded Derivative | Credit spread | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input		0.1925