SHARE CAPITAL (Summary of Outstanding and Restricted Stocks) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Aggregate intrinsic value of the total outstanding and exercisable shares	$ 19,700
Restricted Stock [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options and restricted stock outstanding at end of year	1,496,792
Weighted average remaining contractual life	0 years
Number of options exercisable at end of year	102,084
Weighted average remaining contractual life, exercisable	0 years
Aggregate intrinsic value of the total outstanding and exercisable shares	$ 12,400
Options And Restricted Stock [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options and restricted stock outstanding at end of year	7,662,796
Number of options exercisable at end of year	5,272,950
0.001 [Member] | Options And Restricted Stock [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price	$ 0.001
Number of Options and restricted stock outstanding at end of year	719,207
Weighted average remaining contractual life	2 years 6 months 15 days
Number of options exercisable at end of year	719,207
Weighted average remaining contractual life, exercisable	2 years 6 months 15 days
0.120 [Member] | Options And Restricted Stock [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price	$ 0.12
Number of Options and restricted stock outstanding at end of year	447,850
Weighted average remaining contractual life	1 year 18 days
Number of options exercisable at end of year	447,850
Weighted average remaining contractual life, exercisable	1 year 18 days
0.399 [Member] | Options And Restricted Stock [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price	$ 0.399
Number of Options and restricted stock outstanding at end of year	23,087
Weighted average remaining contractual life	1 year 11 months 1 day
Number of options exercisable at end of year	23,087
Weighted average remaining contractual life, exercisable	1 year 11 months 1 day
0.972 [Member] | Options And Restricted Stock [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price	$ 0.972
Number of Options and restricted stock outstanding at end of year	996,353
Weighted average remaining contractual life	3 years 5 months 9 days
Number of options exercisable at end of year	996,353
Weighted average remaining contractual life, exercisable	3 years 5 months 9 days
2.350 [Member] | Options And Restricted Stock [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price	$ 2.35
Number of Options and restricted stock outstanding at end of year	40,000
Weighted average remaining contractual life	5 years 9 months 26 days
Number of options exercisable at end of year	40,000
Weighted average remaining contractual life, exercisable	5 years 9 months 26 days
2.650 [Member] | Options And Restricted Stock [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price	$ 2.65
Number of Options and restricted stock outstanding at end of year	402,882
Weighted average remaining contractual life	6 years 1 month 24 days
Number of options exercisable at end of year	396,744
Weighted average remaining contractual life, exercisable	6 years 1 month 24 days
3.020 [Member] | Options And Restricted Stock [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price	$ 3.02
Number of Options and restricted stock outstanding at end of year	50,000
Weighted average remaining contractual life	5 years 1 month 6 days
Number of options exercisable at end of year	50,000
Weighted average remaining contractual life, exercisable	5 years 1 month 6 days
5.000 [Member] | Options And Restricted Stock [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price	$ 5.0
Number of Options and restricted stock outstanding at end of year	1,708,000
Weighted average remaining contractual life	5 years 1 month 6 days
Number of options exercisable at end of year	1,708,000
Weighted average remaining contractual life, exercisable	5 years 1 month 6 days
6.810 [Member] | Options And Restricted Stock [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price	$ 6.81
Number of Options and restricted stock outstanding at end of year	160,000
Weighted average remaining contractual life	7 years 1 month 6 days
Number of options exercisable at end of year	110,000
Weighted average remaining contractual life, exercisable	7 years 1 month 6 days
6.900 [Member] | Options And Restricted Stock [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price	$ 6.9
Number of Options and restricted stock outstanding at end of year	1,003,083
Weighted average remaining contractual life	7 years 1 month 24 days
Number of options exercisable at end of year	168,083
Weighted average remaining contractual life, exercisable	7 years 1 month 24 days
7.550 [Member] | Options And Restricted Stock [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price	$ 7.55
Number of Options and restricted stock outstanding at end of year	160,000
Weighted average remaining contractual life	7 years 7 months 28 days
Number of options exercisable at end of year	90,000
Weighted average remaining contractual life, exercisable	7 years 7 months 28 days
9.660 [Member] | Options And Restricted Stock [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price	$ 9.66
Number of Options and restricted stock outstanding at end of year	68,000
Weighted average remaining contractual life	7 years 9 months 29 days
Number of options exercisable at end of year	34,000
Weighted average remaining contractual life, exercisable	7 years 9 months 29 days
16.700 [Member] | Options And Restricted Stock [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price	$ 16.7
Number of Options and restricted stock outstanding at end of year	387,542
Weighted average remaining contractual life	3 years 11 months 27 days
Number of options exercisable at end of year	387,542
Weighted average remaining contractual life, exercisable	3 years 11 months 27 days