Investments (Schedule Of Unrealized Loss On Investments) (Details)	Sep. 30, 2021 USD ($) security	Dec. 31, 2020 USD ($) security
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 208,367,000	$ 60,918,000
Less than 12 months: Unrealized Losses	$ (2,690,000)	$ (405,000)
Less than 12 months: Count | security	174	67
12 months or more: Fair Value	$ 26,433,000	$ 22,032,000
12 months or more: Unrealized Losses	$ (775,000)	$ (296,000)
12 months or more: Count | security	30	35
Fair Value	$ 234,800,000	$ 82,950,000
Unrealized Losses	$ (3,465,000)	$ (701,000)
Count | security	204	102
U.S. Government And Agency [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 59,916,000	$ 3,966,000
Less than 12 months: Unrealized Losses	$ (280,000)	$ (21,000)
Less than 12 months: Count | security	15	5
12 months or more: Fair Value	$ 3,946,000	$ 4,185,000
12 months or more: Unrealized Losses	$ (13,000)	$ (19,000)
12 months or more: Count | security	5	11
Fair Value	$ 63,862,000	$ 8,151,000
Unrealized Losses	$ (293,000)	$ (40,000)
Count | security	20	16
Municipal [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 48,450,000	$ 27,022,000
Less than 12 months: Unrealized Losses	$ (971,000)	$ (219,000)
Less than 12 months: Count | security	55	28
12 months or more: Fair Value	$ 12,248,000
12 months or more: Unrealized Losses	$ (519,000)
12 months or more: Count | security	11
Fair Value	$ 60,698,000	$ 27,022,000
Unrealized Losses	$ (1,490,000)	$ (219,000)
Count | security	66	28
Corporate [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 8,447,000	$ 7,576,000
Less than 12 months: Unrealized Losses	$ (96,000)	$ (37,000)
Less than 12 months: Count | security	17	13
12 months or more: Fair Value	$ 1,455,000	$ 3,040,000
12 months or more: Unrealized Losses	$ (45,000)	$ (118,000)
12 months or more: Count | security	2	4
Fair Value	$ 9,902,000	$ 10,616,000
Unrealized Losses	$ (141,000)	$ (155,000)
Count | security	19	17
Agency Mortgage-Backed [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 76,682,000	$ 18,390,000
Less than 12 months: Unrealized Losses	$ (1,179,000)	$ (101,000)
Less than 12 months: Count | security	64	17
12 months or more: Fair Value	$ 5,710,000	$ 3,355,000
12 months or more: Unrealized Losses	$ (159,000)	$ (6,000)
12 months or more: Count | security	6	5
Fair Value	$ 82,392,000	$ 21,745,000
Unrealized Losses	$ (1,338,000)	$ (107,000)
Count | security	70	22
Private-Label Mortgage-Backed [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 12,920,000	$ 2,506,000
Less than 12 months: Unrealized Losses	$ (74,000)	$ (15,000)
Less than 12 months: Count | security	9	2
Fair Value	$ 12,920,000	$ 2,506,000
Unrealized Losses	$ (74,000)	$ (15,000)
Count | security	9	2
Asset-Backed [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 1,952,000	$ 1,458,000
Less than 12 months: Unrealized Losses	$ (90,000)	$ (12,000)
Less than 12 months: Count | security	14	2
12 months or more: Fair Value	$ 3,074,000	$ 11,452,000
12 months or more: Unrealized Losses	$ (39,000)	$ (153,000)
12 months or more: Count | security	6	15
Fair Value	$ 5,026,000	$ 12,910,000
Unrealized Losses	$ (129,000)	$ (165,000)
Count | security	20	17