Fair Value Disclosures (Details 3) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011
Fair Value Disclosures
Impaired loans	$ 2,852	$ 6,991	$ 10,774
Other real estate owned	5,521	1,231	2,846
Non-recurring basis | Fair Value Measurement Using: Level 2
Fair Value Disclosures
Impaired loans	2,852		10,774
Loans held for sale	4,728
Other real estate owned	5,521		2,846
Total assets	13,101		13,620
Non-recurring basis | Assets at Fair Value
Fair Value Disclosures
Impaired loans	2,852		10,774
Loans held for sale	4,728
Other real estate owned	5,521		2,846
Total assets	$ 13,101		$ 13,620