Investments (Schedule Of Unrealized Loss On Investments) (Details) $ in Thousands	Sep. 30, 2017 USD ($) security	Dec. 31, 2016 USD ($) security
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 21,559	$ 51,472
Less than 12 months: Unrealized Losses	$ (157)	$ (790)
Less than 12 months: Count | security	40	84
12 months or more: Fair Value	$ 29,534	$ 15,132
12 months or more: Unrealized Losses	$ (663)	$ (784)
12 months or more: Count | security	53	31
Fair Value	$ 51,093	$ 66,604
Unrealized Losses	$ (820)	$ (1,574)
Count | security	93	115
U.S. Government And Agency Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 1,690	$ 789
Less than 12 months: Unrealized Losses	$ (3)	$ (9)
Less than 12 months: Count | security	4	1
12 months or more: Fair Value	$ 3,628	$ 3,413
12 months or more: Unrealized Losses	$ (29)	$ (17)
12 months or more: Count | security	10	10
Fair Value	$ 5,318	$ 4,202
Unrealized Losses	$ (32)	$ (26)
Count | security	14	11
Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 4,823	$ 23,407
Less than 12 months: Unrealized Losses	$ (34)	$ (417)
Less than 12 months: Count | security	8	43
12 months or more: Fair Value	$ 6,561	$ 1,598
12 months or more: Unrealized Losses	$ (159)	$ (154)
12 months or more: Count | security	12	2
Fair Value	$ 11,384	$ 25,005
Unrealized Losses	$ (193)	$ (571)
Count | security	20	45
Trust Preferred Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
12 months or more: Fair Value	$ 4,581	$ 5,461
12 months or more: Unrealized Losses	$ (187)	$ (518)
12 months or more: Count | security	5	7
Fair Value	$ 4,581	$ 5,461
Unrealized Losses	$ (187)	$ (518)
Count | security	5	7
Agency Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 14,801	$ 26,995
Less than 12 months: Unrealized Losses	$ (115)	$ (359)
Less than 12 months: Count | security	27	39
12 months or more: Fair Value	$ 14,760	$ 4,656
12 months or more: Unrealized Losses	$ (287)	$ (93)
12 months or more: Count | security	25	11
Fair Value	$ 29,561	$ 31,651
Unrealized Losses	$ (402)	$ (452)
Count | security	52	50
Private-Label Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 245	$ 281
Less than 12 months: Unrealized Losses	$ (5)	$ (5)
Less than 12 months: Count | security	1	1
Fair Value	$ 245	$ 281
Unrealized Losses	$ (5)	$ (5)
Count | security	1	1
Asset-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
12 months or more: Fair Value	$ 4	$ 4
12 months or more: Unrealized Losses	$ (1)	$ (2)
12 months or more: Count | security	1	1
Fair Value	$ 4	$ 4
Unrealized Losses	$ (1)	$ (2)
Count | security	1	1