Fair Value Measurements (Details 1) (USD $)	6 Months Ended							6 Months Ended
	Jun. 30, 2012 Maximum [Member] Significant Unobservable Inputs (Level 3) [Member]	Jun. 30, 2012 Minimum [Member] Significant Unobservable Inputs (Level 3) [Member]	Jun. 30, 2012 Weighted Average [Member] Significant Unobservable Inputs (Level 3) [Member]	Jun. 30, 2012 Nonrecurring Fair Value Measurements [Member]	Dec. 31, 2011 Nonrecurring Fair Value Measurements [Member]	Jun. 30, 2012 Nonrecurring Fair Value Measurements [Member] Significant Unobservable Inputs (Level 3) [Member]	Dec. 31, 2011 Nonrecurring Fair Value Measurements [Member] Significant Unobservable Inputs (Level 3) [Member]	Jun. 30, 2012 Valuation Techniques [Member] Significant Unobservable Inputs (Level 3) [Member]	Jun. 30, 2012 Discounted Cash Flow [Member] Maximum [Member] Significant Unobservable Inputs (Level 3) [Member]	Jun. 30, 2012 Discounted Cash Flow [Member] Minimum [Member] Significant Unobservable Inputs (Level 3) [Member]
Assets measured at a fair value on a non recurring basis
Impaired loans				$ 6,321,000	$ 7,548,000	$ 6,321,000	$ 7,548,000
Other real estate owned and repossed						3,918,000
Mortgage servicing rights fair value disclosure				1,004,000	1,311,000	1,004,000	1,311,000
Appraisal of Collateral								$ 0
Weighted Average Appraisal Adjustments	0.29	0.00	0.146					0.00
Remaining term of mortgage									27 years 3 months 18 days	2 years 10 months 24 days
Weighted average remaining term			15 years 7 months 6 days
Discount rate			(9.70%)						12.00%	9.00%
Impaired loans liquidation expenses	(8.00%)	0.00%	(5.40%)