Investments (Schedule Of Unrealized Loss On Investments) (Details) $ in Thousands	Sep. 30, 2018 USD ($) security	Dec. 31, 2017 USD ($) security
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 57,263	$ 33,585
Less than 12 months: Unrealized Losses	$ (973)	$ (241)
Less than 12 months: Count | security	101	58
12 months or more: Fair Value	$ 42,240	$ 36,203
12 months or more: Unrealized Losses	$ (1,377)	$ (805)
12 months or more: Count | security	91	69
Fair Value	$ 99,503	$ 69,788
Unrealized Losses	$ (2,350)	$ (1,046)
Count | security	192	127
U.S. Government And Agency Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 4,011	$ 2,315
Less than 12 months: Unrealized Losses	$ (54)	$ (11)
Less than 12 months: Count | security	5	5
12 months or more: Fair Value	$ 4,381	$ 3,528
12 months or more: Unrealized Losses	$ (90)	$ (32)
12 months or more: Count | security	12	10
Fair Value	$ 8,392	$ 5,843
Unrealized Losses	$ (144)	$ (43)
Count | security	17	15
Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 28,938	$ 13,767
Less than 12 months: Unrealized Losses	$ (520)	$ (89)
Less than 12 months: Count | security	47	22
12 months or more: Fair Value	$ 13,014	$ 7,507
12 months or more: Unrealized Losses	$ (474)	$ (163)
12 months or more: Count | security	23	14
Fair Value	$ 41,952	$ 21,274
Unrealized Losses	$ (994)	$ (252)
Count | security	70	36
Trust Preferred Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 2,102	$ 1,216
Less than 12 months: Unrealized Losses	$ (62)	$ (12)
Less than 12 months: Count | security	3	2
12 months or more: Fair Value	$ 1,845	$ 4,601
12 months or more: Unrealized Losses	$ (60)	$ (171)
12 months or more: Count | security	2	5
Fair Value	$ 3,947	$ 5,817
Unrealized Losses	$ (122)	$ (183)
Count | security	5	7
Agency Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 18,326	$ 16,287
Less than 12 months: Unrealized Losses	$ (311)	$ (129)
Less than 12 months: Count | security	40	29
12 months or more: Fair Value	$ 22,996	$ 20,563
12 months or more: Unrealized Losses	$ (752)	$ (438)
12 months or more: Count | security	53	39
Fair Value	$ 41,322	$ 36,850
Unrealized Losses	$ (1,063)	$ (567)
Count | security	93	68
Asset-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 3,886
Less than 12 months: Unrealized Losses	$ (26)
Less than 12 months: Count | security	6
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	$ 3,890	$ 4
Unrealized Losses	$ (27)	$ (1)
Count | security	7	1