Loans (Accruing Delinquency Amounts For Credit Card And Other Portfolio Classes) (Details) (USD $)	Mar. 31, 2012	Mar. 31, 2011
Credit Card [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-89 days past due	$ 1,400,000	$ 1,700,000
90+ days past due	1,400,000	1,400,000
Total	2,800,000	3,100,000
Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-89 days past due	500,000	900,000
90+ days past due	100,000
Total	$ 600,000	$ 900,000