Accrued Interest Receivable and Other Assets (Details Textual) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Accrued Interest Receivable and Other Assets (Textual) [Abstract]
Prepaid FDIC insurance assessments	$ 2,426,000	$ 4,025,000
Prepaid FDIC Insurance amount that has a zero percent risk-weighting for risk-based capital ratio	2,400,000
Federal Reserve Bank stock	3,300,000	3,300,000
FHLB Stock	$ 4,100,000	$ 5,800,000