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US Treasury's Troubled Asset Relief Program (TARP) Capital Purchase Program (Details) (USD $)		9 Months Ended
	Jan. 16, 2009	Sep. 30, 2012 Maximum [Member]	Sep. 30, 2012 Minimum ratio required for capital adequacy purposes [Member]	Jan. 16, 2009 Series A Preferred Stock [Member]
U.S. Treasury's Troubled Asset Relief Program (TARP) Capital Purchase Program (Textual) [Abstract]
Preferred stock issued				$ 17,949,000
Cumulative dividend rate		9.00%	5.00%
U.S. Treasury's Troubled Asset Relief Program (TARP) Capital Purchase Program (Additional Textual) [Abstract]
Purchase of common stock	144,984

Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.

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