Subsequent Event (Details Textual) (USD $)	6 Months Ended
	Jun. 30, 2012 Branches
Subsequent Event (Textual) [Abstract]
Reduction in branch network	2
Number of branches to be sold	2
Number of branches to be consolidated	2
Number of impacted branches	1
Expected cash payment to effect sale	$ 31,600,000
Gain on sale, net of transaction costs	$ 568,000