Investments - Unrealized losses (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Schedule of Available-for-sale Securities
Less than 12 Months, Fair Value	$ 176,331	$ 5,328
Less than 12 Months, Unrealized Losses	(1,500)	(89)
12 Months or More, Fair Value	360,996	444,328
12 Months or More, Unrealized Losses	(33,897)	(39,792)
Total Fair Value	537,327	449,656
Total Unrealized Losses	(35,397)	(39,881)
U.S. Treasury securities
Schedule of Available-for-sale Securities
Less than 12 Months, Fair Value	0	0
Less than 12 Months, Unrealized Losses	0	0
12 Months or More, Fair Value	9,494	9,509
12 Months or More, Unrealized Losses	(502)	(487)
Total Fair Value	9,494	9,509
Total Unrealized Losses	(502)	(487)
U.S. Government agencies
Schedule of Available-for-sale Securities
Less than 12 Months, Fair Value	1,481	0
Less than 12 Months, Unrealized Losses	(1)	0
12 Months or More, Fair Value	60	63
12 Months or More, Unrealized Losses	(4)	(3)
Total Fair Value	1,541	63
Total Unrealized Losses	(5)	(3)
Obligations of states and political subdivisions
Schedule of Available-for-sale Securities
Less than 12 Months, Fair Value	6,303	1,257
Less than 12 Months, Unrealized Losses	(71)	(68)
12 Months or More, Fair Value	163,883	162,730
12 Months or More, Unrealized Losses	(13,133)	(14,371)
Total Fair Value	170,186	163,987
Total Unrealized Losses	(13,204)	(14,439)
U.S. Government sponsored entities and agencies collateralized by residential mortgage obligations
Schedule of Available-for-sale Securities
Less than 12 Months, Fair Value	75,146	4,071
Less than 12 Months, Unrealized Losses	(669)	(21)
12 Months or More, Fair Value	33,843	50,458
12 Months or More, Unrealized Losses	(3,837)	(2,964)
Total Fair Value	108,989	54,529
Total Unrealized Losses	(4,506)	(2,985)
Private label mortgage and asset backed securities
Schedule of Available-for-sale Securities
Less than 12 Months, Fair Value	86,426	0
Less than 12 Months, Unrealized Losses	(754)	0
12 Months or More, Fair Value	153,716	221,568
12 Months or More, Unrealized Losses	(16,421)	(21,967)
Total Fair Value	240,142	221,568
Total Unrealized Losses	(17,175)	$ (21,967)
Corporate debt securities
Schedule of Available-for-sale Securities
Less than 12 Months, Fair Value	6,975
Less than 12 Months, Unrealized Losses	(5)
12 Months or More, Fair Value	0
12 Months or More, Unrealized Losses	0
Total Fair Value	6,975
Total Unrealized Losses	$ (5)