Other Real Estate Owned (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Changes in other real estate owned
Balance at the beginning of period	$ 3,796	$ 8,634	$ 5,666	$ 4,484
Additions	1,227	453	1,740	5,979
Additions from acquisitions	0	0	2,279	0
Proceeds from dispositions	(924)	(1,804)	(5,840)	(2,695)
Gain (loss) on sales	75	2	307	0
Valuation adjustment	(45)	0	(23)	(483)
Balance at the end of period	$ 4,129	$ 7,285	$ 4,129	$ 7,285