RESTRICTED CASH (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	$ 31,190	$ 40,562
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	31,718	41,060	$ 22,006
Continuing Operations
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	31,190	40,562
Continuing Operations | Prepaid Expenses and Other Current Assets [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	148	146
Continuing Operations | Other Noncurrent Assets [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 380	$ 352