Fair Value Measurements (Schedule of Fair Value Disclosures Measured On Nonrecurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Fair Value [Member]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Loans	$ 27,176	$ 39,957
Mortgage servicing rights	574	1,195
Foreclosed assets	1,550	2,163
Long-lived assets	5,397	4,403
Fair Value, Inputs, Level 1 [Member]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Loans	0	0
Mortgage servicing rights	0	0
Foreclosed assets	0	0
Long-lived assets	0	0
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Loans	0	0
Mortgage servicing rights	0	0
Foreclosed assets	0	0
Long-lived assets	0	0
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Loans	27,176	39,957
Mortgage servicing rights	574	1,195
Foreclosed assets	1,550	2,163
Long-lived assets	5,397	4,403
Total Gains (Losses) Recognized During The Period [Member]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Loans Nonrecurring Basis Gains Losses	(5,918)	(8,101)
Mortgage Servicing Rights Nonrecurring Basis Gains Losses	20	11
Foreclosed Assets Nonrecurring Basis Gains Losses	(425)	(377)
Long Lived Assets Nonrecurring Basis Gains Losses	$ (3,398)	$ (1,511)