Investments (Schedule Of Unrealized Loss On Investments) (Details) $ in Thousands	Dec. 31, 2017 USD ($) security	Dec. 31, 2016 USD ($) security
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 33,585	$ 51,472
Less than 12 months: Unrealized Losses	$ (241)	$ (790)
Less than 12 months: Count | security	58	84
12 months or more: Fair Value	$ 36,203	$ 15,132
12 months or more: Unrealized Losses	$ (805)	$ (784)
12 months or more: Count | security	69	31
Fair Value	$ 69,788	$ 66,604
Unrealized Losses	$ (1,046)	$ (1,574)
Count | security	127	115
U.S. Government And Agency Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 2,315	$ 789
Less than 12 months: Unrealized Losses	$ (11)	$ (9)
Less than 12 months: Count | security	5	1
12 months or more: Fair Value	$ 3,528	$ 3,413
12 months or more: Unrealized Losses	$ (32)	$ (17)
12 months or more: Count | security	10	10
Fair Value	$ 5,843	$ 4,202
Unrealized Losses	$ (43)	$ (26)
Count | security	15	11
Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 13,767	$ 23,407
Less than 12 months: Unrealized Losses	$ (89)	$ (417)
Less than 12 months: Count | security	22	43
12 months or more: Fair Value	$ 7,507	$ 1,598
12 months or more: Unrealized Losses	$ (163)	$ (154)
12 months or more: Count | security	14	2
Fair Value	$ 21,274	$ 25,005
Unrealized Losses	$ (252)	$ (571)
Count | security	36	45
Trust Preferred Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 1,216
Less than 12 months: Unrealized Losses	$ (12)
Less than 12 months: Count | security	2
12 months or more: Fair Value	$ 4,601	$ 5,461
12 months or more: Unrealized Losses	$ (171)	$ (518)
12 months or more: Count | security	5	7
Fair Value	$ 5,817	$ 5,461
Unrealized Losses	$ (183)	$ (518)
Count | security	7	7
Agency Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 16,287	$ 26,995
Less than 12 months: Unrealized Losses	$ (129)	$ (359)
Less than 12 months: Count | security	29	39
12 months or more: Fair Value	$ 20,563	$ 4,656
12 months or more: Unrealized Losses	$ (438)	$ (93)
12 months or more: Count | security	39	11
Fair Value	$ 36,850	$ 31,651
Unrealized Losses	$ (567)	$ (452)
Count | security	68	50
Private-Label Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value		$ 281
Less than 12 months: Unrealized Losses		$ (5)
Less than 12 months: Count | security		1
Fair Value		$ 281
Unrealized Losses		$ (5)
Count | security		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