Investment Securities (Summary Of Available-For-Sale Securities) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	$ 169,913	$ 221,604	$ 210,668
Available-for-sale Securities, Gross Unrealized Gains	2,452	1,648	1,808
Available-for-sale Securities, Gross Unrealized Losses	22	1,169	657
Available-for-sale Securities, Fair Value	172,343	222,083	211,819
U.S Treasury And Government Sponsored Entities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	99,505	160,529	153,017
Available-for-sale Securities, Gross Unrealized Gains	467	625	831
Available-for-sale Securities, Gross Unrealized Losses		50	22
Available-for-sale Securities, Fair Value	99,972	161,104	153,826
Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	18,199	16,260	14,002
Available-for-sale Securities, Gross Unrealized Gains	691	675	536
Available-for-sale Securities, Fair Value	18,890	16,935	14,538
U.S Agency Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	41	52	56
Available-for-sale Securities, Gross Unrealized Gains	2	2	2
Available-for-sale Securities, Fair Value	43	54	58
Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	48,644	43,767	43,593
Available-for-sale Securities, Gross Unrealized Gains	1,035	343	439
Available-for-sale Securities, Gross Unrealized Losses		1,119	635
Available-for-sale Securities, Fair Value	49,679	42,991	43,397
Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	3,524	996
Available-for-sale Securities, Gross Unrealized Gains	257	3
Available-for-sale Securities, Gross Unrealized Losses	22
Available-for-sale Securities, Fair Value	$ 3,759	$ 999

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

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Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef

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+ Details

- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References+ Details

- Definition

This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

+ References+ Details