Acquisitions (Schedule Of Business Acquisition) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	May 31, 2012 Virginia Savings Bank [Member]	Jan. 10, 2013 Community Bank [Member]
Business Acquisition [Line Items]
Cash	$ 17,410	$ 4,672	$ 12,738
Common stock	35,506	7,723	27,783
Wararnt Issued	924		924
Purchase price	53,840	12,395	41,445
Cash and cash equivalents	33,831	24,943	8,888
Investments	31,780	14,082	17,698
Loans	442,534	73,463	369,071
Bank owned life insurance	6,935		6,935
Premises and equipment	14,108	5,158	8,950
Deferred tax asset, net	19,118	4,173	14,945
Other assets	12,769	4,626	8,143
Total identifiable assets	561,075	126,445	434,630
Deposits	505,793	122,723	383,070
Other liabilities	23,145	841	22,304
Total identifiable liabilities	528,938	123,564	405,374
Net identifiable assets	32,137	2,881	29,256
Goodwill	17,719	8,241	9,478
Core deposit intangible	$ 3,984	$ 1,273	$ 2,711