SHAREHOLDERS' EQUITY (Information About Share Options Outstanding)(Details) (USD $)	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number outstanding, Outstanding	1,844,347	1,575,814
Weighted average remaining contractual life (in years), Outstanding	5 years 8 months 27 days
Weighted average exercise price, Outstanding	$ 5.75	$ 4.84
Number exercisable, Exercisable	867,134	634,252
Weighted average exercise price, Exercisable	$ 3.86	$ 2.95
0.43-1.79 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices, minimum	$ 0.43
Exercise Prices, maximum	$ 1.79
Number outstanding, Outstanding	344,407
Weighted average remaining contractual life (in years), Outstanding	5 years 8 months 19 days
Weighted average exercise price, Outstanding	$ 1.22
Number exercisable, Exercisable	284,936
Weighted average exercise price, Exercisable	$ 1.23
2.86-2.87 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices, minimum	$ 2.86
Exercise Prices, maximum	$ 2.87
Number outstanding, Outstanding	229,709
Weighted average remaining contractual life (in years), Outstanding	1 year 5 months 1 day
Weighted average exercise price, Outstanding	$ 2.86
Number exercisable, Exercisable	229,709
Weighted average exercise price, Exercisable	$ 2.86
4.20-4.78 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices, minimum	$ 4.2
Exercise Prices, maximum	$ 4.78
Number outstanding, Outstanding	133,000
Weighted average remaining contractual life (in years), Outstanding	7 years 5 months 16 days
Weighted average exercise price, Outstanding	$ 4.23
Number exercisable, Exercisable	83,792
Weighted average exercise price, Exercisable	$ 4.24
5.48-6.70 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices, minimum	$ 5.48
Exercise Prices, maximum	$ 6.7
Number outstanding, Outstanding	302,567
Weighted average remaining contractual life (in years), Outstanding	6 years 8 months 12 days
Weighted average exercise price, Outstanding	$ 6.39
Number exercisable, Exercisable	163,821
Weighted average exercise price, Exercisable	$ 6.36
7.40-7.91 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices, minimum	$ 7.4
Exercise Prices, maximum	$ 7.91
Number outstanding, Outstanding	337,494
Weighted average remaining contractual life (in years), Outstanding	6 years 7 months 13 days
Weighted average exercise price, Outstanding	$ 7.81
Number exercisable, Exercisable	5,208
Weighted average exercise price, Exercisable	$ 7.4
8.38-8.40 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices, minimum	$ 8.38
Exercise Prices, maximum	$ 8.4
Number outstanding, Outstanding	390,501
Weighted average remaining contractual life (in years), Outstanding	5 years 10 months 10 days
Weighted average exercise price, Outstanding	$ 8.39
Number exercisable, Exercisable	66,750
Weighted average exercise price, Exercisable	$ 8.4
10.12-10.83 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices, minimum	$ 10.12
Exercise Prices, maximum	$ 10.83
Number outstanding, Outstanding	106,669
Weighted average remaining contractual life (in years), Outstanding	4 years 10 months 2 days
Weighted average exercise price, Outstanding	$ 10.47
Number exercisable, Exercisable	32,918
Weighted average exercise price, Exercisable	$ 10.41

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

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(c)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)-(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(a, b)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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- Definition

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.

+ References

+ Details

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- Definition

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

+ References

+ Details

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- Definition

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.

+ References

+ Details

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