TAXES ON INCOME (Deferred Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
TAXES ON INCOME [Abstract]
Research and development expenses	$ 5,257	$ 6,003
Property and equipment	(491)	(647)
Provision for vacation	417	363
Severance pay obligation	209	192
Deferred revenues	9,867	10,449
Net operating loss carry forwards	23,167	15,176
Valuation allowance	(38,426)	(31,536)
Deferred Tax Assets, Net of Valuation Allowance, Total