ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Payables and Accruals [Abstract]
Accrued severance and related	$ 235	$ 610
Accrued payroll	289	418
Accrued bonuses	936	972
Accrued commissions	784	379
Accrued legal and insurance	1,649	725
Other accrued expenses and current liabilities	3,392	3,058
Total accrued expenses and other current liabilities	$ 7,285	$ 6,162