TAXES ON INCOME (Deferred Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
TAXES ON INCOME [Abstract]
Research and development expenses	$ 3,136	$ 5,257
Property and equipment	(372)	(491)
Provision for vacation	374	417
Severance pay obligation	185	209
Deferred revenues	8,658us-gaap_DeferredTaxAssetsDeferredIncome	9,867us-gaap_DeferredTaxAssetsDeferredIncome
Net operating loss carry forwards	28,130	23,167
Valuation allowance	(40,111)	(38,426)
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.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

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-Section 50

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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.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment.

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

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

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

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