SHORT TERM INVESTMENTS, PREPAID EXPENSES AND OTHER CURRENT ASSETS - Schedule of Prepaid Expenses (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Prepaid income tax	$ 3,182	$ 0
Other prepaid expenses and other current assets	263	288
Total	$ 3,445	$ 288

Amount of asset related to consideration paid in advance for income and other taxes that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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Period Type:	instant