Other Operating Expenses (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Other Operating Expenses
Printing, postage, and supplies	$ 822	$ 845
Communications expense	696	726
Technology and data processing	1,744	1,603
Professional services	725	703
Marketing and advertising expense	1,052	1,468
FDIC assessment premiums and other insurance	790	658
Other taxes	799	758
Loan related expenses	545	535
OREO and credit-related expenses	574	927
Amortization of core deposit premiums	1,069	1,410
Other expenses	2,019	1,249
Total other operating expenses	$ 10,835	$ 10,882