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Employee Benefit Plans (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Employee Benefit Plans [Abstract] |  |  |
Defined Contribution Plan Age of Eligiblity | 21 |  |
Defined Contribution Plan, Required Service Period Prior to Plan Participation | 0 years 0 months 90 days |  |
Defined Contribution Plan, Employer Matching Contribution, Percent | 50.00% |  |
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent | 2.50% |  |
Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 929 | $ 820 | $ 957
Deferred Compensation Arrangement with Individual, Minimum Contractual Term | 5 years |  |
Deferred Compensation Arrangement with Individual, Maximum Contractual Term | P10Y |  |
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance | 0 | 68,906 |
Deferred Compensation Arrangement with Individual, Interest Rate on Notes Payable | 5.00% |  |
Deferred Compensation Arragement with Individual, Notes Payable Plus Accrued Interest | $ 124 | $ 81 |

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- Definition Deferred Compensation Arragement with Individual, Notes Payable Plus Accrued Interest + References No definition available. + Details
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- Definition Deferred Compensation Arrangement with Individual, Interest Rate on Notes Payable + References No definition available. + Details
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- Definition Deferred Compensation Arrangement with Individual, Minimum Contractual Term + References No definition available. + Details
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- Definition Defined Contribution Plan Age of Eligiblity + References No definition available. + Details
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- Definition Defined Contribution Plan, Required Service Period Prior to Plan Participation + References No definition available. + Details
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- Details
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- Definition The maximum term of the deferred compensation arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64, 65 -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 Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph a -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The maximum number of shares authorized for issuance under the deferred compensation arrangement as of the balance sheet date. + 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)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
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- Definition Maximum percentage of employee gross pay, by the terms of the plan, that the employer may contribute to a defined contribution plan. + References No definition available. + Details
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