Details about Accumulated Other Comprehensive Income (Loss) Components (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of revenues	$ (5,000)us-gaap_CostOfRevenue	$ (5,163)us-gaap_CostOfRevenue	$ (3,952)us-gaap_CostOfRevenue
Financial income, net	975us-gaap_InvestmentIncomeNet	2,714us-gaap_InvestmentIncomeNet	3,380us-gaap_InvestmentIncomeNet
Research and development	(25,828)us-gaap_ResearchAndDevelopmentExpense	(21,216)us-gaap_ResearchAndDevelopmentExpense	(20,243)us-gaap_ResearchAndDevelopmentExpense
Sales and marketing	(9,815)us-gaap_SellingAndMarketingExpense	(10,092)us-gaap_SellingAndMarketingExpense	(9,231)us-gaap_SellingAndMarketingExpense
General and administrative	(8,054)us-gaap_GeneralAndAdministrativeExpense	(7,670)us-gaap_GeneralAndAdministrativeExpense	(7,884)us-gaap_GeneralAndAdministrativeExpense
Income before taxes on income	2,033	7,473	15,747
Income tax expense (benefit)	2,852us-gaap_IncomeTaxExpenseBenefit	788us-gaap_IncomeTaxExpenseBenefit	2,062us-gaap_IncomeTaxExpenseBenefit
Net income	(819)us-gaap_NetIncomeLoss	6,685us-gaap_NetIncomeLoss	13,685us-gaap_NetIncomeLoss
Reclassification out of accumulated other comprehensive income (loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income	(343)	732
Reclassification out of accumulated other comprehensive income (loss) \| Unrealized gains (losses) on cash flow hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of revenues	(17)	13
Research and development	(305)	432
Sales and marketing	(34)	27
General and administrative	(26)	43
Income before taxes on income	(382)	515
Income tax expense (benefit)	(36)	54
Net income	(346)	461
Reclassification out of accumulated other comprehensive income (loss) \| Unrealized gains (losses) on available-for-sale marketable securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Financial income, net	6	379
Income tax expense (benefit)	3	108
Net income	$ 3	$ 271

The aggregate cost of goods produced and sold and services rendered during the reporting period.

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The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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- Definition

The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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-Name Accounting Standards Codification

-Topic 730

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The aggregate total amount of expenses directly related to the marketing or selling of products or services.

+ References

No definition available.

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