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Stockholders' Eqiuty (Details 1) (USD $) | 12 Months Ended
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Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of exercise prices, lower | $ 6.82
Range of exercise prices, upper | $ 87.96
Options outstanding | 1,746,709
Weighted average remaining life in years | 7 years 6 months 26 days
Weighted average exercise price | $ 16.79
Options exercisable | 977,351
Weighted average exercise price | $ 15.69
$6.82 – $ 10.05 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of exercise prices, lower | $ 6.82
Range of exercise prices, upper | $ 10.05
Options outstanding | 459,732
Weighted average remaining life in years | 6 years 11 months 19 days
Weighted average exercise price | $ 9.94
Options exercisable | 350,804
Weighted average exercise price | $ 9.92
10.12 – 13.53 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of exercise prices, lower | $ 10.12
Range of exercise prices, upper | $ 13.53
Options outstanding | 113,684
Weighted average remaining life in years | 7 years 10 months 24 days
Weighted average exercise price | $ 11.39
Options exercisable | 106,070
Weighted average exercise price | $ 11.34
14.47 – 14.47 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of exercise prices, lower | $ 14.47
Range of exercise prices, upper | $ 14.47
Options outstanding | 489,633
Weighted average remaining life in years | 8 years 1 month 10 days
Weighted average exercise price | $ 14.47
Options exercisable | 204,019
Weighted average exercise price | $ 14.47
16.14 – 21.00 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of exercise prices, lower | $ 16.14
Range of exercise prices, upper | $ 21.00
Options outstanding | 199,248
Weighted average remaining life in years | 5 years 2 months 16 days
Weighted average exercise price | $ 18.14
Options exercisable | 184,301
Weighted average exercise price | $ 18.11
21.92 – 87.96 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of exercise prices, lower | $ 21.92
Range of exercise prices, upper | $ 87.96
Options outstanding | 484,412
Weighted average remaining life in years | 8 years 6 months
Weighted average exercise price | $ 26.35
Options exercisable | 132,157
Weighted average exercise price | $ 33.00

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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + 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)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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 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 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 + 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 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 + 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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + 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 Reference 1: 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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