Investment Securities (Summary Of Contractual Maturity Of Debt Securities Classified As Available For Sale) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Available for Sale (at fair value), Within One Year	$ 398	$ 6,682
Available for Sale (at fair value), After One But Within Five Years	13,740	18,685
Available for Sale (at fair value), After Five But Within Ten Years	87,906	119,113
Available for Sale (at fair value), After Ten Years	424,213	367,271
Total Available for Sale Securities, Fair Value	526,257	511,751
Held to Maturity, Within One Year	16	0
Held to Maturity, After One But Within Five Years	84	158
Held to Maturity, After Five But Within Ten Years	0	0
Held to Maturity, After Ten Years	343	400
Total Held to Maturity Securities	443	558
U.S. Treasury Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for Sale (at fair value), Within One Year	0	250
Available for Sale (at fair value), After One But Within Five Years	100	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	100	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	10,056	12,567
Available for Sale (at fair value), After Five But Within Ten Years	44,177	69,823
Available for Sale (at fair value), After Ten Years	0	5,006
Total Available for Sale Securities, Fair Value	54,233	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	4,618	13,287
Available for Sale (at fair value), After Ten Years	0	0
Total Available for Sale Securities, Fair Value	4,618	16,676
Agency MBSs [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for Sale (at fair value), Within One Year	398	20
Available for Sale (at fair value), After One But Within Five Years	3,573	6,118
Available for Sale (at fair value), After Five But Within Ten Years	28,335	32,897
Available for Sale (at fair value), After Ten Years	151,398	144,803
Total Available for Sale Securities, Fair Value	183,704	183,838
Held to Maturity, Within One Year	16	0
Held to Maturity, After One But Within Five Years	84	158
Held to Maturity, After Five But Within Ten Years	0	0
Held to Maturity, After Ten Years	343	400
Total Held to Maturity Securities	443	558
Agency CMBSs [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for Sale (at fair value), Within One Year	0
Available for Sale (at fair value), After One But Within Five Years	0
Available for Sale (at fair value), After Five But Within Ten Years	5,024
Available for Sale (at fair value), After Ten Years	0
Total Available for Sale Securities, Fair Value	5,024
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	11	0
Available for Sale (at fair value), After Five But Within Ten Years	5,752	3,056
Available for Sale (at fair value), After Ten Years	267,656	211,424
Total Available for Sale Securities, Fair Value	273,419	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	4,738	4,805
Total Available for Sale Securities, Fair Value	4,738	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	421	1,233
Total Available for Sale Securities, Fair Value	$ 421	$ 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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