Variable Interest Entities (Details) (USD $)		1 Months Ended	9 Months Ended	1 Months Ended	9 Months Ended
Dec. 31, 2011	Jul. 31, 2011 ACT I [Member]	Sep. 30, 2012 ACT I [Member]	May 31, 2012 ACT II [Member]	Sep. 30, 2012 ACT II [Member]
Variable Interest Entities (Textual) [Abstract]
Proceeds from issuance of trust preferred securities			$ 10,000,000		$ 25,000,000
Purchase of subordinated debt securities			10,300,000		25,800,000
Redemption of debt securities		10,300,000		12,900,000
Subordinated debt securities	$ 25,780,000			$ 12,900,000	$ 25,800,000

The cash inflow from issuance of preferred stocks by a business trust or other special purpose entity, mainly established by a bank holding entity, to third party investors. The trust's assets are deeply subordinated debentures of the bank holding entity. Most trust preferred securities are subject to a mandatory redemption upon the repayment of the debentures.

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The cash outflow from the repayment of long-term borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in case of liquidation of the entity's assets or underlying collateral.

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

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