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Business Segments (Details Textual)	6 Months Ended
	Jun. 30, 2012 Segment Banking_Centers Financial_Centers
Business Segments (Textual) [Abstract]
Number of principal reporting segment	2
Bank operated business financial centers, number	42
Bank operated commercial banking centers, number	5
Consideration of business financial and commercial banking center	1

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- Definition

Bank operated business financial centers, number.

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- Definition

Bank operated commercial banking centers, number.

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Consideration of business financial and commercial banking center.

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Number of principal reporting segment.

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