ACCRUED EXPENSE AND OTHER CURRENT LIABILITIES (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Other Liabilities Disclosure [Abstract]
Accrued compensation and benefit-related expense	$ 1,195	$ 1,210
Accrued interest	439	302
Other accrued expense	369	1,037
Other payables	3,339	3,780
Operating lease liability - current	308	2,877
Other current liabilities	3,337	5,120
Total	$ 8,987	$ 14,326