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Commitments and Contingencies (Details Textual) (USD $) | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 31, 2009 | Dec. 31, 2012 | Dec. 31, 2012 | Dec. 17, 2009
Commitments and Contingencies (Additional Textual) [Abstract] |  |  |  |
Accrued estimated losses |  | 0 | 0 |
Net loss for jury awards after insurance proceeds |  |  | 275,000 |
Maximum [Member] |  |  |  |
Commitments and Contingencies (Textual) [Abstract] |  |  |  |
Remaining term of standby letters of credit |  |  | 5 years |
Minimum [Member] |  |  |  |
Commitments and Contingencies (Textual) [Abstract] |  |  |  |
Remaining term of standby letters of credit |  |  | 1 month |
Pending Litigation [Member] |  |  |  |
Commitments and Contingencies (Textual) [Abstract] |  |  |  |
Lawsuit filing date |  | November 18, 2010 | December 17, 2009 |
Awarded in damages to the plaintiffs | 630,000 |  |  |
Awarded in punitive damages |  |  |  | $ 200,000

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- Definition The net proceeds or assets obtained in excess of (less than) the net carrying amount of assets recorded, or assets distributed and liabilities assumed less than (in excess of) estimated litigation liability extinguished, in settlement of a litigation matter. Represents (for other than an insurance entity in its normal claims settlement process), the amount of income (expense) recognized in the period to settle pending or threatened litigation and insurance claims. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9, 10, 11, 12 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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