Recent Accounting Pronouncements (Policies)	9 Months Ended
Sep. 30, 2012
Recent Accounting Pronouncements [Abstract]
Fair Value Measurement	In May 2011, the FASB issued Accounting Standards Update No. 2011-4, “Fair Value Measurement (Topic 820), Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs.” Some amendments in this update clarify the FASB’s intent about the application of existing fair value measurement requirements. Other amendments change a particular principle or requirement for measuring fair value or for disclosing information about fair value measurements. The amendments in this update are effective during interim and annual reporting periods beginning after December 15, 2011. The Corporation complied with the revised disclosure requirements.
Comprehensive Income	In June 2011, the FASB issued Accounting Standards Update No. 2011-5, “Comprehensive Income (Topic 220), Presentation of Comprehensive Income.” This update amends the FASB Accounting Standards Codification (Codification) to allow an entity the option to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. In both choices, an entity is required to present each component of net income along with total net income, each component of other comprehensive income along with a total for other comprehensive income, and a total amount for comprehensive income. This update eliminates the option to present the components of other comprehensive income as part of the statement of changes in stockholders’ equity. The amendments to the Codification in this update do not change the items that must be reported in other comprehensive income or when an item of other comprehensive income must be reclassified to net income. The amendments in this update are effective for fiscal years, and interim periods within those years, beginning after December 15, 2011, and retrospective application is required. The Corporation complied with the revised disclosure requirements. In December 2011, the FASB issued Accounting Standards Update No. 2011-12, “Comprehensive Income (Topic 220): Deferral of the Effective Date for Amendments to the Presentation of Reclassification of Items out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05.” This update defers the specific requirement to present items that are reclassified from accumulated other comprehensive income to net income separately within their respective components of net income and other comprehensive income. As such, the amendments in this update supersede only those paragraphs in Accounting Standards Update No. 2011-05 that pertain to how and where reclassification adjustments are presented. The amendments were effective at the same time as the amendments in Accounting Standards Update 2011-05. The Corporation complied with the revised disclosure requirements.
Intangibles - Goodwill and Other	In September 2011, the FASB issued Accounting Standards Update No. 2011-08, “Intangibles – Goodwill and Other (Topic 350), Testing Goodwill for Impairment.” The amendments in the update permit an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test. The more-likely-than-not threshold is defined as having a likelihood of more than fifty percent. The amendments are effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. The effect of adopting this new guidance did not have a material effect on the Corporation’s financial statements.

Recent Accounting Pronouncements (Policies)

9 Months Ended

Sep. 30, 2012

Recent Accounting Pronouncements [Abstract]

In May 2011, the FASB issued Accounting Standards Update No. 2011-4, “Fair Value Measurement (Topic 820), Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs.” Some amendments in this update clarify the FASB’s intent about the application of existing fair value measurement requirements. Other amendments change a particular principle or requirement for measuring fair value or for disclosing information about fair value measurements. The amendments in this update are effective during interim and annual reporting periods beginning after December 15, 2011. The Corporation complied with the revised disclosure requirements.

Comprehensive Income

In June 2011, the FASB issued Accounting Standards Update No. 2011-5, “Comprehensive Income (Topic 220), Presentation of Comprehensive Income.” This update amends the FASB Accounting Standards Codification (Codification) to allow an entity the option to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. In both choices, an entity is required to present each component of net income along with total net income, each component of other comprehensive income along with a total for other comprehensive income, and a total amount for comprehensive income. This update eliminates the option to present the components of other comprehensive income as part of the statement of changes in stockholders’ equity. The amendments to the Codification in this update do not change the items that must be reported in other comprehensive income or when an item of other comprehensive income must be reclassified to net income. The amendments in this update are effective for fiscal years, and interim periods within those years, beginning after December 15, 2011, and retrospective application is required. The Corporation complied with the revised disclosure requirements.

In December 2011, the FASB issued Accounting Standards Update No. 2011-12, “Comprehensive Income (Topic 220): Deferral of the Effective Date for Amendments to the Presentation of Reclassification of Items out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05.” This update defers the specific requirement to present items that are reclassified from accumulated other comprehensive income to net income separately within their respective components of net income and other comprehensive income. As such, the amendments in this update supersede only those paragraphs in Accounting Standards Update No. 2011-05 that pertain to how and where reclassification adjustments are presented. The amendments were effective at the same time as the amendments in Accounting Standards Update 2011-05. The Corporation complied with the revised disclosure requirements.

Intangibles - Goodwill and Other

In September 2011, the FASB issued Accounting Standards Update No. 2011-08, “Intangibles – Goodwill and Other (Topic 350), Testing Goodwill for Impairment.” The amendments in the update permit an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test. The more-likely-than-not threshold is defined as having a likelihood of more than fifty percent. The amendments are effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. The effect of adopting this new guidance did not have a material effect on the Corporation’s financial statements.

- Definition

Disclosure of accounting policy for finite-lived intangible assets. This accounting policy also might address: (1) the amortization method used; (2) the useful lives of such assets; and (3) how the entity assesses and measures impairment of such assets.

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