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OTHER ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Payables and Accruals [Abstract]    
Employees and related accruals $ 1,673 $ 2,074
Accrual for withholding taxes and royalties payments related to Milestone payments from Bayer 4
Accrued expenses 1,076 1,388
Other accounts payable and accrued expenses $ 2,749 $ 3,466