Loans and Allowance for Credit Losses - Loan Portfolio by Risk Rating (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	$ 682,696		$ 682,696		$ 545,075
Originated prior year	511,312		511,312		976,400
Originated two years prior year	844,654		844,654		730,143
Originated three years prior year	683,437		683,437		287,114
Originated four years prior year	250,959		250,959		177,377
Prior	440,514		440,514		334,375
Revolving loans	589,752		589,752		558,117
Loans, before allowance	3,989,374		3,989,374		3,595,523
Current-period gross charge-offs	275	$ 430	750	$ 1,162
Loans, gross	4,003,324		4,003,324		3,608,601
Real Estate Portfolio Segment | Residential 1-4 Family Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	226,289		226,289		165,731
Originated prior year	135,824		135,824		298,394
Originated two years prior year	284,949		284,949		239,260
Originated three years prior year	227,098		227,098		90,439
Originated four years prior year	78,501		78,501		56,357
Prior	127,265		127,265		92,452
Revolving loans	12,752		12,752		16,585
Loans, before allowance	1,092,678		1,092,678		959,218
Originated current year, charge offs			0		0
Originated prior year, charge offs			0		0
Originated two years prior year, charge offs			0		0
Originated three years prior year, charge offs			0		0
Originated four years prior year, charge offs			0		0
Prior, charge offs			0		0
Revolving loans, charge offs			0		0
Current-period gross charge-offs	0	0	0	0	0
Loans, gross	1,092,678		1,092,678		959,218
Real Estate Portfolio Segment | Commercial and Multi-Family Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	206,279		206,279		103,050
Originated prior year	115,408		115,408		321,767
Originated two years prior year	337,443		337,443		378,573
Originated three years prior year	377,127		377,127		143,178
Originated four years prior year	134,248		134,248		91,640
Prior	267,498		267,498		217,756
Revolving loans	51,820		51,820		57,320
Loans, before allowance	1,489,823		1,489,823		1,313,284
Originated current year, charge offs			0		0
Originated prior year, charge offs			0		0
Originated two years prior year, charge offs			0		0
Originated three years prior year, charge offs			0		0
Originated four years prior year, charge offs			0		0
Prior, charge offs			0		0
Revolving loans, charge offs			0		0
Current-period gross charge-offs	0	0	0	0	0
Loans, gross	1,489,823		1,489,823		1,313,284
Real Estate Portfolio Segment | Construction, Land Development and Farmland
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	211,227		211,227		231,337
Originated prior year	227,895		227,895		306,056
Originated two years prior year	182,644		182,644		99,456
Originated three years prior year	70,594		70,594		26,710
Originated four years prior year	15,019		15,019		7,586
Prior	14,151		14,151		10,192
Revolving loans	223,416		223,416		219,999
Loans, before allowance	944,946		944,946		901,336
Originated current year, charge offs			0		0
Originated prior year, charge offs			0		0
Originated two years prior year, charge offs			0		0
Originated three years prior year, charge offs			0		0
Originated four years prior year, charge offs			0		0
Prior, charge offs			0		0
Revolving loans, charge offs			0		0
Current-period gross charge-offs	0	0	0	0	0
Loans, gross	944,946		944,946		901,336
Real Estate Portfolio Segment | 1-4 family Equity Lines of Credit
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	0		0		0
Originated prior year	0		0		0
Originated two years prior year	0		0		0
Originated three years prior year	0		0		0
Originated four years prior year	0		0		0
Prior	0		0		0
Revolving loans	231,108		231,108		202,731
Loans, before allowance	231,108		231,108		202,731
Originated current year, charge offs			0		0
Originated prior year, charge offs			0		0
Originated two years prior year, charge offs			0		0
Originated three years prior year, charge offs			0		0
Originated four years prior year, charge offs			0		0
Prior, charge offs			0		0
Revolving loans, charge offs			0		0
Current-period gross charge-offs	0	0	0	0	0
Loans, gross	231,108		231,108		202,731
Commercial, Industrial and Agricultural Portfolio
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	12,867		12,867		16,904
Originated prior year	13,678		13,678		34,514
Originated two years prior year	30,586		30,586		7,466
Originated three years prior year	5,463		5,463		12,272
Originated four years prior year	10,255		10,255		17,066
Prior	22,100		22,100		7,593
Revolving loans	38,502		38,502		31,844
Loans, before allowance	133,451		133,451		127,659
Originated current year, charge offs			0		0
Originated prior year, charge offs			0		30
Originated two years prior year, charge offs			19		0
Originated three years prior year, charge offs			4		0
Originated four years prior year, charge offs			0		0
Prior, charge offs			0		0
Revolving loans, charge offs			0		0
Current-period gross charge-offs	9	0	23	0	30
Loans, gross	133,451		133,451		127,659
Consumer Portfolio Segment
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	26,034		26,034		28,053
Originated prior year	18,507		18,507		15,669
Originated two years prior year	9,032		9,032		5,388
Originated three years prior year	3,155		3,155		14,515
Originated four years prior year	12,936		12,936		4,728
Prior	9,500		9,500		6,382
Revolving loans	32,154		32,154		29,638
Loans, before allowance	111,318		111,318		104,373
Originated current year, charge offs			8		1,843
Originated prior year, charge offs			133		213
Originated two years prior year, charge offs			126		98
Originated three years prior year, charge offs			7		22
Originated four years prior year, charge offs			0		0
Prior, charge offs			0		1
Revolving loans, charge offs			453		151
Current-period gross charge-offs	266	$ 430	727	$ 1,162	2,328
Loans, gross	111,318		111,318		104,373
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	681,649		681,649		544,851
Originated prior year	505,974		505,974		975,376
Originated two years prior year	819,204		819,204		729,700
Originated three years prior year	682,720		682,720		286,220
Originated four years prior year	249,345		249,345		177,112
Prior	432,622		432,622		331,879
Revolving loans	584,510		584,510		557,563
Loans, gross	3,956,024		3,956,024		3,602,701
Pass | Real Estate Portfolio Segment | Residential 1-4 Family Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	225,338		225,338		165,655
Originated prior year	134,753		134,753		297,535
Originated two years prior year	283,195		283,195		239,035
Originated three years prior year	226,476		226,476		89,563
Originated four years prior year	77,648		77,648		56,092
Prior	123,992		123,992		90,119
Revolving loans	12,678		12,678		16,585
Loans, before allowance	1,084,080		1,084,080		954,584
Pass | Real Estate Portfolio Segment | Commercial and Multi-Family Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	206,279		206,279		103,050
Originated prior year	111,799		111,799		321,767
Originated two years prior year	314,215		314,215		378,418
Originated three years prior year	377,127		377,127		143,178
Originated four years prior year	133,535		133,535		91,640
Prior	262,941		262,941		217,645
Revolving loans	51,820		51,820		57,320
Loans, before allowance	1,457,716		1,457,716		1,313,018
Pass | Real Estate Portfolio Segment | Construction, Land Development and Farmland
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	211,227		211,227		231,337
Originated prior year	227,456		227,456		306,056
Originated two years prior year	182,378		182,378		99,456
Originated three years prior year	70,561		70,561		26,710
Originated four years prior year	15,019		15,019		7,586
Prior	14,103		14,103		10,141
Revolving loans	220,866		220,866		219,999
Loans, before allowance	941,610		941,610		901,285
Pass | Real Estate Portfolio Segment | 1-4 family Equity Lines of Credit
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	0		0		0
Originated prior year	0		0		0
Originated two years prior year	0		0		0
Originated three years prior year	0		0		0
Originated four years prior year	0		0		0
Prior	0		0		0
Revolving loans	228,597		228,597		202,189
Loans, before allowance	228,597		228,597		202,189
Pass | Commercial, Industrial and Agricultural Portfolio
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	26,028		26,028		16,811
Originated prior year	18,403		18,403		34,507
Originated two years prior year	8,882		8,882		7,460
Originated three years prior year	3,105		3,105		12,272
Originated four years prior year	12,901		12,901		17,066
Prior	9,486		9,486		7,593
Revolving loans	32,153		32,153		31,832
Loans, before allowance	110,958		110,958		127,541
Pass | Consumer Portfolio Segment
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	12,777		12,777		27,998
Originated prior year	13,563		13,563		15,511
Originated two years prior year	30,534		30,534		5,331
Originated three years prior year	5,451		5,451		14,497
Originated four years prior year	10,242		10,242		4,728
Prior	22,100		22,100		6,381
Revolving loans	38,396		38,396		29,638
Loans, before allowance	133,063		133,063		104,084
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	1,045		1,045		173
Originated prior year	1,701		1,701		918
Originated two years prior year	24,888		24,888		443
Originated three years prior year	328		328		883
Originated four years prior year	1,601		1,601		137
Prior	3,385		3,385		1,640
Revolving loans	4,961		4,961		416
Loans, gross	37,909		37,909		4,610
Special Mention | Real Estate Portfolio Segment | Residential 1-4 Family Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	951		951		76
Originated prior year	1,071		1,071		859
Originated two years prior year	1,375		1,375		225
Originated three years prior year	246		246		876
Originated four years prior year	853		853		137
Prior	2,904		2,904		1,558
Revolving loans	0		0		0
Loans, before allowance	7,400		7,400		3,731
Special Mention | Real Estate Portfolio Segment | Commercial and Multi-Family Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	0		0		0
Originated prior year	0		0		0
Originated two years prior year	23,228		23,228		155
Originated three years prior year	0		0		0
Originated four years prior year	713		713		0
Prior	419		419		31
Revolving loans	0		0		0
Loans, before allowance	24,360		24,360		186
Special Mention | Real Estate Portfolio Segment | Construction, Land Development and Farmland
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	0		0		0
Originated prior year	439		439		0
Originated two years prior year	135		135		0
Originated three years prior year	33		33		0
Originated four years prior year	0		0		0
Prior	48		48		51
Revolving loans	2,550		2,550		0
Loans, before allowance	3,205		3,205		51
Special Mention | Real Estate Portfolio Segment | 1-4 family Equity Lines of Credit
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	0		0		0
Originated prior year	0		0		0
Originated two years prior year	0		0		0
Originated three years prior year	0		0		0
Originated four years prior year	0		0		0
Prior	0		0		0
Revolving loans	2,304		2,304		404
Loans, before allowance	2,304		2,304		404
Special Mention | Commercial, Industrial and Agricultural Portfolio
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	90		90		93
Originated prior year	115		115		7
Originated two years prior year	34		34		6
Originated three years prior year	12		12		0
Originated four years prior year	0		0		0
Prior	0		0		0
Revolving loans	106		106		12
Loans, before allowance	357		357		118
Special Mention | Consumer Portfolio Segment
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	4		4		4
Originated prior year	76		76		52
Originated two years prior year	116		116		57
Originated three years prior year	37		37		7
Originated four years prior year	35		35		0
Prior	14		14		0
Revolving loans	1		1		0
Loans, before allowance	283		283		120
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	2		2		51
Originated prior year	3,637		3,637		106
Originated two years prior year	562		562		0
Originated three years prior year	389		389		11
Originated four years prior year	13		13		128
Prior	4,507		4,507		856
Revolving loans	281		281		138
Loans, gross	9,391		9,391		1,290
Substandard | Real Estate Portfolio Segment | Residential 1-4 Family Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	0		0		0
Originated prior year	0		0		0
Originated two years prior year	379		379		0
Originated three years prior year	376		376		0
Originated four years prior year	0		0		128
Prior	369		369		775
Revolving loans	74		74		0
Loans, before allowance	1,198		1,198		903
Substandard | Real Estate Portfolio Segment | Commercial and Multi-Family Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	0		0		0
Originated prior year	3,609		3,609		0
Originated two years prior year	0		0		0
Originated three years prior year	0		0		0
Originated four years prior year	0		0		0
Prior	4,138		4,138		80
Revolving loans	0		0		0
Loans, before allowance	7,747		7,747		80
Substandard | Real Estate Portfolio Segment | Construction, Land Development and Farmland
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	0		0		0
Originated prior year	0		0		0
Originated two years prior year	131		131		0
Originated three years prior year	0		0		0
Originated four years prior year	0		0		0
Prior	0		0		0
Revolving loans	0		0		0
Loans, before allowance	131		131		0
Substandard | Real Estate Portfolio Segment | 1-4 family Equity Lines of Credit
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	0		0		0
Originated prior year	0		0		0
Originated two years prior year	0		0		0
Originated three years prior year	0		0		0
Originated four years prior year	0		0		0
Prior	0		0		0
Revolving loans	207		207		138
Loans, before allowance	207		207		138
Substandard | Commercial, Industrial and Agricultural Portfolio
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	0		0		0
Originated prior year	0		0		0
Originated two years prior year	18		18		0
Originated three years prior year	0		0		0
Originated four years prior year	13		13		0
Prior	0		0		0
Revolving loans	0		0		0
Loans, before allowance	31		31		0
Substandard | Consumer Portfolio Segment
Financing Receivable, Credit Quality Indicator [Line Items]
Originated current year	2		2		51
Originated prior year	28		28		106
Originated two years prior year	34		34		0
Originated three years prior year	13		13		11
Originated four years prior year	0		0		0
Prior	0		0		1
Revolving loans	0		0		0
Loans, before allowance	$ 77		$ 77		$ 169