Accounting Policies, by Policy (Policies)	3 Months Ended
Mar. 31, 2013
Accounting Standards Update 2013-02 [Member]
New Accounting Pronouncements, Policy [Policy Text Block]	FASB ASU 2013-02, “Comprehensive Income (Topic 220) - Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income” The objective of this Accounting Standards Update (“ASU”) is to improve the reporting of reclassifications out of accumulated other comprehensive income. The amendments require First Financial to report the effect of significant reclassifications out of accumulated other comprehensive income on the respective line items in net income if the amount being reclassified is required by GAAP to be reclassified in its entirety to net income. For other amounts that are not required under GAAP to be reclassified in their entirety to net income in the same reporting period, First Financial is required to cross-reference other disclosures required under GAAP that provide additional detail about those amounts. This would be the case when a portion of the amount reclassified out of accumulated other comprehensive income is reclassified to a balance sheet account instead of directly to income or expense in the same reporting period. The amendments are effective prospectively for reporting periods beginning after December 15, 2012. First Financial previously accounted for its accumulated other comprehensive income in accordance with this guidance and adoption did not have a material impact on its financial position, results of operations or cash flows.
Accounting Standards Update 2013-01 [Member]
New Accounting Pronouncements, Policy [Policy Text Block]	FASB ASU 2013-01, “Balance Sheet (Topic 210) - Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities” This ASU addresses implementation issues about the scope of ASU 2011-11, Balance Sheet Topic 210: Disclosures about Offsetting Assets and Liabilities, which requires First Financial to disclose both gross information and net information about instruments and transactions eligible for offset in the statement of financial position and instruments and transactions subject to an agreement similar to a master netting arrangement. The scope includes derivatives, sale and repurchase agreements and reverse sales and repurchase agreements, as well as securities borrowing and securities lending arrangements. An entity is required to apply the amendments for fiscal years beginning on or after January 1, 2013, and interim periods within those annual periods. An entity should provide the required disclosures retrospectively for all comparative periods presented. The adoption of ASU 2013-02 did not have a material impact on First Financial’s financial condition, results of operations or cash flows.
Accounting Standards Update 2011-11 [Member]
New Accounting Pronouncements, Policy [Policy Text Block]	FASB ASU 2011-11, “Balance Sheet (Topic 210) - Disclosures about Offsetting Assets and Liabilities.” This ASU addresses the differences in reporting between GAAP and International Financial Reporting Standards (“IFRS”) regarding offsetting (netting) assets and liabilities and enhances current disclosures. ASU 2011-11 requires First Financial to disclose both gross information and net information about instruments and transactions eligible for offset in the statement of financial position and instruments and transactions subject to an agreement similar to a master netting arrangement. The scope includes derivatives, sale and repurchase agreements and reverse sales and repurchase agreements, as well as securities borrowing and securities lending arrangements. ASU 2011-11 will be effective for annual reporting periods beginning on or after January 1, 2013 and interim periods within those annual periods. The adoption of ASU 2011-11 did not have a material impact on First Financial’s financial condition, results of operations or cash flows.

Accounting Policies, by Policy (Policies)

3 Months Ended

Mar. 31, 2013

Accounting Standards Update 2013-02 [Member]

New Accounting Pronouncements, Policy [Policy Text Block]

FASB ASU 2013-02, “Comprehensive Income (Topic 220) - Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income”

The objective of this Accounting Standards Update (“ASU”) is to improve the reporting of reclassifications out of accumulated other comprehensive income. The amendments require First Financial to report the effect of significant reclassifications out of accumulated other comprehensive income on the respective line items in net income if the amount being reclassified is required by GAAP to be reclassified in its entirety to net income. For other amounts that are not required under GAAP to be reclassified in their entirety to net income in the same reporting period, First Financial is required to cross-reference other disclosures required under GAAP that provide additional detail about those amounts. This would be the case when a portion of the amount reclassified out of accumulated other comprehensive income is reclassified to a balance sheet account instead of directly to income or expense in the same reporting period. The amendments are effective prospectively for reporting periods beginning after December 15, 2012. First Financial previously accounted for its accumulated other comprehensive income in accordance with this guidance and adoption did not have a material impact on its financial position, results of operations or cash flows.

Accounting Standards Update 2013-01 [Member]

New Accounting Pronouncements, Policy [Policy Text Block]

FASB ASU 2013-01, “Balance Sheet (Topic 210) - Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities”

This ASU addresses implementation issues about the scope of ASU 2011-11, Balance Sheet Topic 210: Disclosures about Offsetting Assets and Liabilities, which requires First Financial to disclose both gross information and net information about instruments and transactions eligible for offset in the statement of financial position and instruments and transactions subject to an agreement similar to a master netting arrangement. The scope includes derivatives, sale and repurchase agreements and reverse sales and repurchase agreements, as well as securities borrowing and securities lending arrangements. An entity is required to apply the amendments for fiscal years beginning on or after January 1, 2013, and interim periods within those annual periods. An entity should provide the required disclosures retrospectively for all comparative periods presented. The adoption of ASU 2013-02 did not have a material impact on First Financial’s financial condition, results of operations or cash flows.

Accounting Standards Update 2011-11 [Member]

New Accounting Pronouncements, Policy [Policy Text Block]

FASB ASU 2011-11, “Balance Sheet (Topic 210) - Disclosures about Offsetting Assets and Liabilities.”

This ASU addresses the differences in reporting between GAAP and International Financial Reporting Standards (“IFRS”) regarding offsetting (netting) assets and liabilities and enhances current disclosures. ASU 2011-11 requires First Financial to disclose both gross information and net information about instruments and transactions eligible for offset in the statement of financial position and instruments and transactions subject to an agreement similar to a master netting arrangement. The scope includes derivatives, sale and repurchase agreements and reverse sales and repurchase agreements, as well as securities borrowing and securities lending arrangements. ASU 2011-11 will be effective for annual reporting periods beginning on or after January 1, 2013 and interim periods within those annual periods. The adoption of ASU 2011-11 did not have a material impact on First Financial’s financial condition, results of operations or cash flows.