Loans and Allowance for Loan Losses - Allowance for Loan Losses Activity by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Allowances for Loan Losses [Roll Forward]
Balance at beginning of period	$ 45,963	$ 44,623	$ 45,100	$ 44,884	$ 44,884
Loans charged-off	(858)	(1,194)	(1,538)	(1,807)	(4,257)
Recoveries of loans charged-off	514	342	1,043	652
Net loans (charged-off) recovered	(344)	(852)	(495)	(1,155)
Provision for (reversal of) loan losses	(24)	650	990	692
Balance at end of period	45,595	44,421	45,595	44,421	45,100
Construction Real Estate Loans
Allowances for Loan Losses [Roll Forward]
Balance at beginning of period	9,645	3,887	7,951	3,958	3,958
Loans charged-off	0	0	0	0	(1)
Recoveries of loans charged-off	0	0	0	0
Net loans (charged-off) recovered	0	0	0	0
Provision for (reversal of) loan losses	(3,124)	2,307	(1,430)	2,236
Balance at end of period	6,521	6,194	6,521	6,194	7,951
1-4 Family Residential Real Estate Loans
Allowances for Loan Losses [Roll Forward]
Balance at beginning of period	2,804	2,709	2,830	2,780	2,780
Loans charged-off	0	(56)	0	(69)	(69)
Recoveries of loans charged-off	4	7	11	15
Net loans (charged-off) recovered	4	(49)	11	(54)
Provision for (reversal of) loan losses	4	121	(29)	55
Balance at end of period	2,812	2,781	2,812	2,781	2,830
Commercial Owner Occupied
Allowances for Loan Losses [Roll Forward]
Balance at beginning of period	5,488	5,488	5,655	5,603	5,603
Loans charged-off	0	0	0	0	0
Recoveries of loans charged-off	4	3	7	7
Net loans (charged-off) recovered	4	3	7	7
Provision for (reversal of) loan losses	375	(74)	205	(193)
Balance at end of period	5,867	5,417	5,867	5,417	5,655
Commercial Real Estate Loans
Allowances for Loan Losses [Roll Forward]
Balance at beginning of period	23,841	29,242	23,750	29,923	29,923
Loans charged-off	0	0	0	0	0
Recoveries of loans charged-off	0	1	0	2
Net loans (charged-off) recovered	0	1	0	2
Provision for (reversal of) loan losses	1,298	(3,959)	1,389	(4,641)
Balance at end of period	25,139	25,284	25,139	25,284	23,750
Commercial loans
Allowances for Loan Losses [Roll Forward]
Balance at beginning of period	3,866	3,128	4,588	2,448	2,448
Loans charged-off	(371)	(727)	(728)	(883)	(2,399)
Recoveries of loans charged-off	371	163	699	265
Net loans (charged-off) recovered	0	(564)	(29)	(618)
Provision for (reversal of) loan losses	1,249	1,869	556	2,603
Balance at end of period	5,115	4,433	5,115	4,433	4,588
Municipal loans
Allowances for Loan Losses [Roll Forward]
Balance at beginning of period	12	14	13	16	16
Loans charged-off	0	0	0	0	0
Recoveries of loans charged-off	0	0	0	0
Net loans (charged-off) recovered	0	0	0	0
Provision for (reversal of) loan losses	0	0	(1)	(2)
Balance at end of period	12	14	12	14	13
Loans to individuals
Allowances for Loan Losses [Roll Forward]
Balance at beginning of period	307	155	313	156	156
Loans charged-off	(487)	(411)	(810)	(855)	(1,788)
Recoveries of loans charged-off	135	168	326	363
Net loans (charged-off) recovered	(352)	(243)	(484)	(492)
Provision for (reversal of) loan losses	174	386	300	634
Balance at end of period	$ 129	$ 298	$ 129	$ 298	$ 313

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S45
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-URI https://asc.fasb.org/1943274/2147477657/942-210-S45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
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-URI https://asc.fasb.org/1943274/2147478478/942-210-S50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
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-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
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-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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