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GENERAL AND ADMINISTRATIVE EXPENSES (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
General and Administrative Expenses [Line Items]      
Share-based compensation, net $ (65) $ 726 $ 1,209
Total general and administrative 3,445 3,164 3,571
General and Administrative Expense [Member]      
General and Administrative Expenses [Line Items]      
Salaries and related expenses 1,839 1,395 1,411
Share-based compensation, net (299) 610 975
Professional services 833 414 354
Office rent and maintenance 163 161 144
Depreciation 10 10 9
Others 899 574 678
Total general and administrative $ 3,445 $ 3,164 $ 3,571