Investments (Schedule Of Unrealized Loss On Investments) (Details) $ in Thousands	Jun. 30, 2018 USD ($) security	Dec. 31, 2017 USD ($) security
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 64,688	$ 33,585
Less than 12 months: Unrealized Losses	$ (953)	$ (241)
Less than 12 months: Count | security	108	58
12 months or more: Fair Value	$ 31,330	$ 36,203
12 months or more: Unrealized Losses	$ (929)	$ (805)
12 months or more: Count | security	69	69
Fair Value	$ 96,018	$ 69,788
Unrealized Losses	$ (1,882)	$ (1,046)
Count | security	177	127
U.S. Government And Agency Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 6,061	$ 2,315
Less than 12 months: Unrealized Losses	$ (92)	$ (11)
Less than 12 months: Count | security	8	5
12 months or more: Fair Value	$ 3,066	$ 3,528
12 months or more: Unrealized Losses	$ (40)	$ (32)
12 months or more: Count | security	9	10
Fair Value	$ 9,127	$ 5,843
Unrealized Losses	$ (132)	$ (43)
Count | security	17	15
Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 29,373	$ 13,767
Less than 12 months: Unrealized Losses	$ (421)	$ (89)
Less than 12 months: Count | security	44	22
12 months or more: Fair Value	$ 7,839	$ 7,507
12 months or more: Unrealized Losses	$ (288)	$ (163)
12 months or more: Count | security	15	14
Fair Value	$ 37,212	$ 21,274
Unrealized Losses	$ (709)	$ (252)
Count | security	59	36
Trust Preferred Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 2,765	$ 1,216
Less than 12 months: Unrealized Losses	$ (64)	$ (12)
Less than 12 months: Count | security	3	2
12 months or more: Fair Value	$ 920	$ 4,601
12 months or more: Unrealized Losses	$ (33)	$ (171)
12 months or more: Count | security	1	5
Fair Value	$ 3,685	$ 5,817
Unrealized Losses	$ (97)	$ (183)
Count | security	4	7
Agency Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 24,530	$ 16,287
Less than 12 months: Unrealized Losses	$ (375)	$ (129)
Less than 12 months: Count | security	50	29
12 months or more: Fair Value	$ 19,501	$ 20,563
12 months or more: Unrealized Losses	$ (567)	$ (438)
12 months or more: Count | security	43	39
Fair Value	$ 44,031	$ 36,850
Unrealized Losses	$ (942)	$ (567)
Count | security	93	68
Asset-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 1,959
Less than 12 months: Unrealized Losses	$ (1)
Less than 12 months: Count | security	3
12 months or more: Fair Value	$ 4	$ 4
12 months or more: Unrealized Losses	$ (1)	$ (1)
12 months or more: Count | security	1	1
Fair Value	$ 1,963	$ 4
Unrealized Losses	$ (2)	$ (1)
Count | security	4	1