Premises and Equipment (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Depreciation	$ 1,951,000	$ 1,955,000	$ 2,024,000
Operating Leases, Rent Expense, Net	$ 547,000	$ 598,000	$ 767,000