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SHAREHOLDERS' EQUITY (Summary Of Stock Options And RSUs Granted Separated Into Ranges Of Exercise Price) (Details)	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options and RSUs outstanding | shares	7,449,223
Options and RSUs exercisable | shares	4,568,753
RSUs 0.0 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price, lower range limit	$ 0.00
Exercise price, upper range limit	$ 0.00
Options and RSUs outstanding | shares	373,623
Outstanding options, Weighted average remaining contractual life (years) for outstanding options
Outstanding options, Weighted average exercise price	$ 0.00
Options and RSUs exercisable | shares
Exercisable options, Remaining contractual life (in years)
Exercisable options, Weighted average exercise price	$ 0.00
0.01-2.00 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price, lower range limit	0.01
Exercise price, upper range limit	$ 2.00
Options and RSUs outstanding | shares	1,520,110
Outstanding options, Weighted average remaining contractual life (years) for outstanding options	1 year 8 months 23 days
Outstanding options, Weighted average exercise price	$ 1.21
Options and RSUs exercisable | shares	1,362,569
Exercisable options, Remaining contractual life (in years)	1 year 7 months 10 days
Exercisable options, Weighted average exercise price	$ 1.20
2.01-4.00 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price, lower range limit	2.01
Exercise price, upper range limit	$ 4.00
Options and RSUs outstanding | shares	4,159,085
Outstanding options, Weighted average remaining contractual life (years) for outstanding options	4 years 3 months 22 days
Outstanding options, Weighted average exercise price	$ 2.73
Options and RSUs exercisable | shares	1,905,266
Exercisable options, Remaining contractual life (in years)	3 years 5 months 12 days
Exercisable options, Weighted average exercise price	$ 2.70
4.01-6.00 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price, lower range limit	4.01
Exercise price, upper range limit	$ 6.00
Options and RSUs outstanding | shares	325,321
Outstanding options, Weighted average remaining contractual life (years) for outstanding options	3 years 7 months 13 days
Outstanding options, Weighted average exercise price	$ 4.59
Options and RSUs exercisable | shares	229,834
Exercisable options, Remaining contractual life (in years)	2 years 11 months 23 days
Exercisable options, Weighted average exercise price	$ 4.75
6.01-8.00 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price, lower range limit	6.01
Exercise price, upper range limit	$ 8.00
Options and RSUs outstanding | shares	31,000
Outstanding options, Weighted average remaining contractual life (years) for outstanding options	2 years 8 months 19 days
Outstanding options, Weighted average exercise price	$ 6.50
Options and RSUs exercisable | shares	31,000
Exercisable options, Remaining contractual life (in years)	2 years 8 months 19 days
Exercisable options, Weighted average exercise price	$ 6.50
8.01-10.00 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price, lower range limit	8.01
Exercise price, upper range limit	$ 10.00
Options and RSUs outstanding | shares	459,334
Outstanding options, Weighted average remaining contractual life (years) for outstanding options	2 years 2 months 8 days
Outstanding options, Weighted average exercise price	$ 8.99
Options and RSUs exercisable | shares	459,334
Exercisable options, Remaining contractual life (in years)	2 years 2 months 8 days
Exercisable options, Weighted average exercise price	$ 8.99
10.01-13.04 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price, lower range limit	10.01
Exercise price, upper range limit	$ 13.04
Options and RSUs outstanding | shares	580,750
Outstanding options, Weighted average remaining contractual life (years) for outstanding options	10 months 25 days
Outstanding options, Weighted average exercise price	$ 12.40
Options and RSUs exercisable | shares	580,750
Exercisable options, Remaining contractual life (in years)	10 months 25 days
Exercisable options, Weighted average exercise price	$ 12.40

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

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The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

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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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The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

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