FAIR VALUE MEASUREMENTS - Estimate of Expected Volatility and Stock Price (Details) - CBG Acquisition Warrants - China Branding Group Limited $ in Thousands	3 Months Ended
Mar. 31, 2020 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Changes in fair value resulting from 5% increase in expected volatility	$ 0
Changes in fair value resulting from 5% decrease in expected volatility	$ 58

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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