Loans (Recorded Investment in Nonaccrual and Loans Past Due Over 90 Days Still On Accrual by Class of Loans) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-Accrual	$ 11,776	$ 8,378
Loans Past Due 90 Days or More & Still Accruing	16	8
Commercial and Industrial Loans and Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-Accrual	4,331	31
Loans Past Due 90 Days or More & Still Accruing	16	0
Commercial Real Estate Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-Accrual	5,348	6,658
Loans Past Due 90 Days or More & Still Accruing	0	8
Agricultural Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-Accrual	0	0
Loans Past Due 90 Days or More & Still Accruing	0	0
Home Equity Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-Accrual	139	114
Loans Past Due 90 Days or More & Still Accruing	0	0
Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-Accrual	318	236
Loans Past Due 90 Days or More & Still Accruing	0	0
Residential Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-Accrual	1,640	1,339
Loans Past Due 90 Days or More & Still Accruing	0	0
Loans Acquired With Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-Accrual	1,562	1,705
Loans Past Due 90 Days or More & Still Accruing	$ 0	$ 0