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Available-For-Sale And Held-To-Maturity Securities (Schedule Of Gross Unrealized Losses And The Estimated Fair Value By Length Of Time) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Available-for-sale Securities, Gross unrealized losses, Less than 12 months $ (2,229)
Available-for-sale Securities, Estimated fair value, Less than 12 months 98,380
Available-for-sale Securities, Gross unrealized losses, 12 months or more (575)
Available-for-sale Securities, Estimated fair value, 12 months or more 41,516
Available-for-sale Securities, Gross unrealized losses, Total (2,804)
Available-for-sale Securities, Estimated fair value, Total 139,896
State And Municipal Securities [Member]
 
Available-for-sale Securities, Gross unrealized losses, Less than 12 months (583)
Available-for-sale Securities, Estimated fair value, Less than 12 months 32,596
Available-for-sale Securities, Gross unrealized losses, Total (583)
Available-for-sale Securities, Estimated fair value, Total 32,596
Commercial [Member]
 
Available-for-sale Securities, Gross unrealized losses, Less than 12 months (228)
Available-for-sale Securities, Estimated fair value, Less than 12 months 26,665
Available-for-sale Securities, Gross unrealized losses, 12 months or more (259)
Available-for-sale Securities, Estimated fair value, 12 months or more 16,832
Available-for-sale Securities, Gross unrealized losses, Total (487)
Available-for-sale Securities, Estimated fair value, Total 43,497
Corporate Fixed Income Securities [Member]
 
Available-for-sale Securities, Gross unrealized losses, Less than 12 months (1,184)
Available-for-sale Securities, Estimated fair value, Less than 12 months 24,385
Available-for-sale Securities, Gross unrealized losses, 12 months or more (316)
Available-for-sale Securities, Estimated fair value, 12 months or more 24,684
Available-for-sale Securities, Gross unrealized losses, Total (1,500)
Available-for-sale Securities, Estimated fair value, Total 49,069
Asset-Backed Securities [Member]
 
Available-for-sale Securities, Gross unrealized losses, Less than 12 months (234)
Available-for-sale Securities, Estimated fair value, Less than 12 months 14,734
Available-for-sale Securities, Gross unrealized losses, Total (234)
Available-for-sale Securities, Estimated fair value, Total $ 14,734