Investments (Schedule Of Unrealized Loss On Investments) (Details) $ in Thousands	Mar. 31, 2024 USD ($) security	Dec. 31, 2023 USD ($) security
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 46,035	$ 55,638
Less than 12 months: Unrealized Losses	$ (240)	$ (913)
Less than 12 months: Count | security	30	43
12 months or more: Fair Value	$ 391,462	$ 402,548
12 months or more: Unrealized Losses	$ (49,747)	$ (48,641)
12 months or more: Count | security	520	521
Fair Value	$ 437,497	$ 458,186
Unrealized Losses	$ (49,987)	$ (49,554)
Count | security	550	564
U.S Treasury [Member]
Schedule of Available-for-sale Securities [Line Items]
12 months or more: Fair Value	$ 73,110	$ 74,091
12 months or more: Unrealized Losses	$ (10,207)	$ (9,403)
12 months or more: Count | security	28	28
Fair Value	$ 73,110	$ 74,091
Unrealized Losses	$ (10,207)	$ (9,403)
Count | security	28	28
Municipal [Member]
Schedule of Available-for-sale Securities [Line Items]
12 months or more: Fair Value	$ 137,456	$ 138,618
12 months or more: Unrealized Losses	$ (23,560)	$ (22,721)
12 months or more: Count | security	168	168
Fair Value	$ 137,456	$ 138,618
Unrealized Losses	$ (23,560)	$ (22,721)
Count | security	168	168
Corporate [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value		$ 1,483
Less than 12 months: Unrealized Losses		$ (167)
Less than 12 months: Count | security		5
12 months or more: Fair Value	$ 22,470	$ 21,715
12 months or more: Unrealized Losses	$ (2,890)	$ (2,971)
12 months or more: Count | security	50	46
Fair Value	$ 22,470	$ 23,198
Unrealized Losses	$ (2,890)	$ (3,138)
Count | security	50	51
Agency Mortgage-Backed & Asset-Backed [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 2,116	$ 6,227
Less than 12 months: Unrealized Losses	$ (17)	$ (186)
Less than 12 months: Count | security	12	19
12 months or more: Fair Value	$ 111,772	$ 118,053
12 months or more: Unrealized Losses	$ (9,701)	$ (9,878)
12 months or more: Count | security	221	223
Fair Value	$ 113,888	$ 124,280
Unrealized Losses	$ (9,718)	$ (10,064)
Count | security	233	242
Non-Agency Mortgage & Asset-Backed [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months: Fair Value	$ 43,919	$ 47,928
Less than 12 months: Unrealized Losses	$ (223)	$ (560)
Less than 12 months: Count | security	18	19
12 months or more: Fair Value	$ 46,654	$ 50,071
12 months or more: Unrealized Losses	$ (3,389)	$ (3,668)
12 months or more: Count | security	53	56
Fair Value	$ 90,573	$ 97,999
Unrealized Losses	$ (3,612)	$ (4,228)
Count | security	71	75