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Employee Stock Purchase Plan Stock Options and Warrants - Long Term Incentive Plans (Details) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012
2006 Incentive Plan [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | 1,300
Employee Stock Purchase Plan Qualified [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | 257
Share Based Compensation Arragement Employee Stock Purchase Plan Percentage of Market Price Purchase Date | 95.00%
Employee Stock Purchase Plan Non Qualified [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | 69
Stock Options [Member] | 2006 Incentive Plan [Member] | Minimum [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Award vesting period | 3 years
Stock Option Contractual Life | 7 years
Stock Options [Member] | 2006 Incentive Plan [Member] | Maximum [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Award vesting period | 5 years
Stock Option Contractual Life | 10 years
Performance Shares [Member] | 2006 Incentive Plan [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Award vesting period | 1 year

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- Definition Share Based Compensation Arragement Employee Stock Purchase Plan, Percentage of Market Price. Purchase Date + References No definition available. + Details
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period + References No definition available. + Details
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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