TAXES ON INCOME (Deferred Income Taxes) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
In respect of:
Research and development expenses	$ 3,235	$ 3,136
Property and equipment	(168)	(372)
Provision for vacation	352	374
Severance pay obligation	169	185
Deferred revenues	0	8,658
Net operating loss carry forwards	33,451	28,130
Valuation allowance	(37,039)	(40,111)
Deferred Tax Assets, Net of Valuation Allowance, Total	$ 0	$ 0