Fair Value Of Assets And Liabilities (Summary Of Differences Between The Fair Value Carrying Amount Of Mortgages Held-For-Sale And Aggregate Unpaid Principal Amount) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Mar. 31, 2011
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total loans	$ 223,158	$ 222,687
Aggregate Unpaid Principal [Member] | Loans Held-For-Sale Reported At Fair Value [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total loans	310,837	292,056
Nonaccrual loans	96,820	82,616
Loans 90 days or more past due and still accruing	(19,062)	24,226
Fair Value Carrying Amount Less Aggregate Unpaid Principal [Member] | Loans Held-For-Sale Reported At Fair Value [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total loans	(87,679)	(69,369)
Nonaccrual loans	(52,507)	(39,621)
Loans 90 days or more past due and still accruing	10,360	(11,994)
Fair Value Carrying Amount [Member] | Loans Held-For-Sale Reported At Fair Value [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total loans	223,158	222,687
Nonaccrual loans	44,313	42,995
Loans 90 days or more past due and still accruing	$ (8,702)	$ 12,232