Fair Value Measurements (Summary Of Adjustments To Fair Value And Related Level Of Valuation Assumptions) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Mar. 31, 2011
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Loans	$ 19,579	$ 41,091
Mortgage servicing rights	686	1,281
Foreclosed assets	330	2,301
Long-lived assets	4,647	3,300
Fair Value [Member]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Loans	19,579	41,091
Mortgage servicing rights	686	1,281
Foreclosed assets	330	2,301
Long-lived assets	4,647	3,300
Total Gains (Losses) Recognized During The Period [Member]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Loans	(1,208)	(5,458)
Mortgage servicing rights	40	51
Foreclosed assets	(50)	(288)
Long-lived assets	$ (3,000)	$ (1,000)