SHAREHOLDERS' EQUITY (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Expiration period	10 years
Ordinary shares reserved for issuance	8,639,000
Ordinary shares available for future grant	1,109,446
Total intrinsic value of options exercised	$ 5,116	$ 265
Weighted average period	1 year
Total unrecognized compensation cost	$ 1,980	$ 1,203	$ 1,071
Additional Shares authorized	15,196,688
Stock Option [Member]
Weighted average grant date fair value of options granted	$ 1.79	$ 1.11	$ 0.78
RSU [Member]
Total unrecognized compensation cost	$ 2,225
Stock issued, shares	186,608	316,827

Share Based Compensation Arrangement By Share Based Payment Award Award Expiration Period

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Number of additional shares authorized for issuance under an established share-based compensation plan.

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No definition available.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Number of new stock issued during the period.

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