Investment Securities (Summary Of Contractual Maturity Of Debt Securities Classified As Available For Sale) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Available for Sale (at fair value), Within One Year	$ 463	$ 6,682
Available for Sale (at fair value), After One But Within Five Years	11,697	18,685
Available for Sale (at fair value), After Five But Within Ten Years	97,022	119,113
Available for Sale (at fair value), After Ten Years	385,640	367,271
Total Available for Sale Securities, Fair Value	494,822	511,751
Held to Maturity, Within One Year	5	0
Held to Maturity, After One But Within Five Years	114	158
Held to Maturity, After Five But Within Ten Years	0	0
Held to Maturity, After Ten Years	362	400
Total Held to Maturity Securities	481	558
U.S. Treasury Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for Sale (at fair value), Within One Year	250	250
Available for Sale (at fair value), After One But Within Five Years	0	0
Available for Sale (at fair value), After Five But Within Ten Years	0	0
Available for Sale (at fair value), After Ten Years	0	0
Total Available for Sale Securities, Fair Value	250	250
U.S. Agency Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for Sale (at fair value), Within One Year	0	3,023
Available for Sale (at fair value), After One But Within Five Years	7,535	12,567
Available for Sale (at fair value), After Five But Within Ten Years	57,264	69,823
Available for Sale (at fair value), After Ten Years	0	5,006
Total Available for Sale Securities, Fair Value	64,799	90,419
FHLB Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for Sale (at fair value), Within One Year	0	3,389
Available for Sale (at fair value), After One But Within Five Years	0	0
Available for Sale (at fair value), After Five But Within Ten Years	4,649	13,287
Available for Sale (at fair value), After Ten Years	0	0
Total Available for Sale Securities, Fair Value	4,649	16,676
Agency MBSs [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for Sale (at fair value), Within One Year	213	20
Available for Sale (at fair value), After One But Within Five Years	4,162	6,118
Available for Sale (at fair value), After Five But Within Ten Years	28,682	32,897
Available for Sale (at fair value), After Ten Years	140,582	144,803
Total Available for Sale Securities, Fair Value	173,639	183,838
Held to Maturity, Within One Year	5	0
Held to Maturity, After One But Within Five Years	114	158
Held to Maturity, After Five But Within Ten Years	0	0
Held to Maturity, After Ten Years	362	400
Total Held to Maturity Securities	481	558
Agency CMOs [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for Sale (at fair value), Within One Year	0	0
Available for Sale (at fair value), After One But Within Five Years	0	0
Available for Sale (at fair value), After Five But Within Ten Years	6,427	3,056
Available for Sale (at fair value), After Ten Years	239,910	211,424
Total Available for Sale Securities, Fair Value	246,337	214,480
Non-Agency CMOs [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for Sale (at fair value), Within One Year	0	0
Available for Sale (at fair value), After One But Within Five Years	0	0
Available for Sale (at fair value), After Five But Within Ten Years	0	50
Available for Sale (at fair value), After Ten Years	4,729	4,805
Total Available for Sale Securities, Fair Value	4,729	4,855
ABSs [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for Sale (at fair value), Within One Year	0	0
Available for Sale (at fair value), After One But Within Five Years	0	0
Available for Sale (at fair value), After Five But Within Ten Years	0	0
Available for Sale (at fair value), After Ten Years	419	1,233
Total Available for Sale Securities, Fair Value	$ 419	$ 1,233

Available For Sale Securities Debt Maturities Fair Value Total

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Amount of available-for-sale debt securities at fair value maturing in the sixth fiscal year through the tenth fiscal year following the latest fiscal year.

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Amount of available-for-sale debt securities at fair value maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year.

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