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FAIR VALUE MEASUREMENTS - Key Assumptions Used for Valuation (Details) | Jun. 30, 2020
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Volatility |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.750
Risk-free interest rate |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.160
Expected term (in years) |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 2.0
Dividend yield |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0
Discount for lack of marketability |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.193

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