STOCK-BASED COMPENSATION (Schedule of Changes in Options Outstanding) (Details) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($) $ / shares shares
Number of Options
Balance \| shares	120,083
Exercised \| shares	(23,148)
Expired \| shares	(3,790)
Forfeited \| shares	(1,835)
Balance \| shares	91,310
Vested and expected to vest \| shares	91,310
Exercisable \| shares	91,310
Weighted Average Exercise Price
Balance \| $ / shares	$ 14.41
Exercised \| $ / shares	15.45
Expired \| $ / shares	24.82
Forfeited \| $ / shares	18.91
Balance \| $ / shares	13.63
Vested and expected to vest \| $ / shares	13.63
Exercisable \| $ / shares	$ 13.63
Weighted Average Remaining Contractual Term
Balance	2 years 8 months 12 days
Vested and Expected to Vest	2 years 8 months 12 days
Exercisable	2 years 8 months 12 days
Aggregate Intrinsic Value
Balance \| $	$ 1,055
Vested and expected to vest \| $	1,055
Exercisable \| $	$ 1,055

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average remaining contractual term for fully vested and expected to vest exercisable or convertible options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average remaining contractual term of exercisable stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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