TAXES ON INCOME (Deferred Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
TAXES ON INCOME [Abstract]
Research and development expenses	$ 6,003	$ 4,119
Property and equipment	(647)	(149)
Provision for vacation	363	305
Severance pay obligation	192	164
Deferred revenues	10,449	4,746
Net operating loss carry forwards	15,176	4,579
Valuation allowance	(31,536)	(13,764)
Deferred Tax Assets, Net of Valuation Allowance, Total

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income.

+ References+ Details

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from in-process research and development costs expensed in connection with a business combination.

+ References+ Details

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

+ References+ Details

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from compensation and benefits costs.

+ References+ Details

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from severance costs.

+ References+ Details

- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References+ Details