Disclosures About Fair value of Assets and Liabilities (Details 1) (Nonrecurring [Member], USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Fair value of assets
Impaired loans at fair value	$ 4,443	$ 7,008
Other real estate owned fair value	3,914	4,722
Level 1 [Member]
Fair value of assets
Impaired loans at fair value
Other real estate owned fair value
Level 2 [Member]
Fair value of assets
Impaired loans at fair value
Other real estate owned fair value
Level 3 [Member]
Fair value of assets
Impaired loans at fair value	4,443	7,008
Other real estate owned fair value	$ 3,914	$ 4,722