SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue recognition:
Recognition period of maintenance revenues ratably over the term of the agreement	1 year
Accounting for stock-based compensation:
Excess tax benefit from equity-based compensation	$ 121	$ 189	$ 40
Derivatives and hedging: [Line Items]
Net losses recognized in financial income, net	(201)	21	53
Addition payments of severance cost	0
Basic and diluted net income (loss) per share:
Weighted average number of anti-dilutive options excluded from the computation of earnings per share	1,888,768	1,714,765	2,718,673
Severance pay:
Severance pay expense	594us-gaap_SeveranceCosts1	423us-gaap_SeveranceCosts1	730us-gaap_SeveranceCosts1
Designated as hedging instruments [Member]
Derivatives and hedging: [Line Items]
Notional amount	6,300	0
Forward and Option Contracts [Member] \| Not designated as hedging instruments [Member]
Derivatives and hedging: [Line Items]
Fair value of derivative contracts	$ 196	$ 0

The additional cash outflow for cost incurred of severance cost.

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Represents the recognition period of maintenance revenues ratably over the term of the agreement.

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Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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The aggregate cash inflow comprised of the amount received from (a) employees to acquire the entity's shares under incentive awards, including stock option exercises and restricted stock arrangements, and (b) the excess tax benefit arising from such transactions.

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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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