Loans and Allowance for Credit Losses on Loans - Schedule of Credit Risk Ratings by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Financing Receivable Recorded Investment [Line Items]
Current Year	$ 163,925		$ 304,876
Year One	367,963		193,349
Year Two	204,400		546,095
Year Three	574,425		249,960
Year Four	280,875		127,724
Prior	300,475		373,887
Revolving Loans	150,190		157,937
Revolving Loans Converted to Term Loans	1,632		3,024
Total	2,043,885		1,956,852
Current period charge-offs
Current Year	0		0
Year One	0		44
Year Two	32		0
Year Three	77		66
Year Four	0		0
Prior	21		27
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	$ 130	$ 68	$ 137
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Accrued interest receivable		Accrued interest receivable
Accrued interest receivable	$ 8,600		$ 8,100
Pass
Financing Receivable Recorded Investment [Line Items]
Current Year	163,925		304,876
Year One	367,963		190,587
Year Two	201,328		532,404
Year Three	551,236		244,846
Year Four	278,355		127,567
Prior	289,398		360,145
Revolving Loans	149,801		157,537
Revolving Loans Converted to Term Loans	1,632		3,024
Total	2,003,638		1,920,986
Special mention
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		0
Year Two	0		2,924
Year Three	6,879		2,246
Year Four	2,229		0
Prior	627		739
Revolving Loans	389		400
Revolving Loans Converted to Term Loans	0		0
Total	10,124		6,309
Substandard
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		2,762
Year Two	3,072		10,767
Year Three	16,310		2,868
Year Four	291		157
Prior	10,352		12,905
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	30,025		29,459
Doubtful
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		0
Year Two	0		0
Year Three	0		0
Year Four	0		0
Prior	98		98
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	98		98
Commercial real estate
Financing Receivable Recorded Investment [Line Items]
Current Year	73,633		201,141
Year One	267,903		86,636
Year Two	101,724		191,866
Year Three	236,871		139,671
Year Four	175,119		88,993
Prior	150,903		254,928
Revolving Loans	17,125		17,012
Revolving Loans Converted to Term Loans	0		0
Total	1,023,278		980,247
Current period charge-offs
Current Year	0		0
Year One	0		0
Year Two	0		0
Year Three	0		0
Year Four	0		0
Prior	0		0
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	0	0	0
Commercial real estate | Pass
Financing Receivable Recorded Investment [Line Items]
Current Year	73,633		201,141
Year One	267,903		85,056
Year Two	100,144		190,968
Year Three	231,730		137,425
Year Four	172,890		88,993
Prior	150,546		250,291
Revolving Loans	17,125		17,012
Revolving Loans Converted to Term Loans	0		0
Total	1,013,971		970,886
Commercial real estate | Special mention
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		0
Year Two	0		579
Year Three	576		2,246
Year Four	2,229		0
Prior	0		0
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	2,805		2,825
Commercial real estate | Substandard
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		1,580
Year Two	1,580		319
Year Three	4,565		0
Year Four	0		0
Prior	357		4,637
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	6,502		6,536
Commercial real estate | Doubtful
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		0
Year Two	0		0
Year Three	0		0
Year Four	0		0
Prior	0		0
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	0		0
SBA—real estate
Financing Receivable Recorded Investment [Line Items]
Current Year	14,125		31,441
Year One	29,027		27,690
Year Two	27,787		53,685
Year Three	53,458		21,687
Year Four	18,936		16,166
Prior	93,879		81,293
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	237,212		231,962
Current period charge-offs
Current Year	0		0
Year One	0		0
Year Two	0		0
Year Three	0		66
Year Four	0		0
Prior	0		0
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	0	66	66
SBA—real estate | Pass
Financing Receivable Recorded Investment [Line Items]
Current Year	14,125		31,441
Year One	29,027		26,508
Year Two	26,295		41,375
Year Three	37,190		18,819
Year Four	18,645		16,166
Prior	84,454		72,440
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	209,736		206,749
SBA—real estate | Special mention
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		0
Year Two	0		2,345
Year Three	6,303		0
Year Four	0		0
Prior	627		739
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	6,930		3,084
SBA—real estate | Substandard
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		1,182
Year Two	1,492		9,965
Year Three	9,965		2,868
Year Four	291		0
Prior	8,798		8,114
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	20,546		22,129
SBA—real estate | Doubtful
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		0
Year Two	0		0
Year Three	0		0
Year Four	0		0
Prior	0		0
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	0		0
SBA—non-real estate
Financing Receivable Recorded Investment [Line Items]
Current Year	1,462		10,443
Year One	9,606		4,498
Year Two	4,190		2,320
Year Three	2,222		154
Year Four	124		1,460
Prior	3,962		2,873
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	21,566		21,748
Current period charge-offs
Current Year	0		0
Year One	0		0
Year Two	3		0
Year Three	0		0
Year Four	0		0
Prior	7		27
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	10	0	27
SBA—non-real estate | Pass
Financing Receivable Recorded Investment [Line Items]
Current Year	1,462		10,443
Year One	9,606		4,498
Year Two	4,190		1,837
Year Three	1,782		154
Year Four	124		1,303
Prior	3,431		2,621
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	20,595		20,856
SBA—non-real estate | Special mention
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		0
Year Two	0		0
Year Three	0		0
Year Four	0		0
Prior	0		0
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	0		0
SBA—non-real estate | Substandard
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		0
Year Two	0		483
Year Three	440		0
Year Four	0		157
Prior	433		154
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	873		794
SBA—non-real estate | Doubtful
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		0
Year Two	0		0
Year Three	0		0
Year Four	0		0
Prior	98		98
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	98		98
C&I
Financing Receivable Recorded Investment [Line Items]
Current Year	685		19,712
Year One	21,527		11,525
Year Two	11,284		14,016
Year Three	12,513		18,122
Year Four	17,326		3,356
Prior	4,241		2,664
Revolving Loans	133,042		140,678
Revolving Loans Converted to Term Loans	1,632		3,024
Total	202,250		213,097
Current period charge-offs
Current Year	0		0
Year One	0		44
Year Two	29		0
Year Three	0		0
Year Four	0		0
Prior	0		0
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	29	0	44
C&I | Pass
Financing Receivable Recorded Investment [Line Items]
Current Year	685		19,712
Year One	21,527		11,525
Year Two	11,284		14,016
Year Three	12,513		18,122
Year Four	17,326		3,356
Prior	4,241		2,664
Revolving Loans	132,653		140,278
Revolving Loans Converted to Term Loans	1,632		3,024
Total	201,861		212,697
C&I | Special mention
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		0
Year Two	0		0
Year Three	0		0
Year Four	0		0
Prior	0		0
Revolving Loans	389		400
Revolving Loans Converted to Term Loans	0		0
Total	389		400
C&I | Substandard
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		0
Year Two	0		0
Year Three	0		0
Year Four	0		0
Prior	0		0
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	0		0
C&I | Doubtful
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		0
Year Two	0		0
Year Three	0		0
Year Four	0		0
Prior	0		0
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	0		0
Home mortgage
Financing Receivable Recorded Investment [Line Items]
Current Year	74,007		42,112
Year One	39,900		63,000
Year Two	59,415		284,208
Year Three	269,361		70,326
Year Four	69,370		17,749
Prior	47,490		32,129
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	559,543		509,524
Current period charge-offs
Current Year	0		0
Year One	0		0
Year Two	0		0
Year Three	77		0
Year Four	0		0
Prior	14		0
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	91	2	0
Home mortgage | Pass
Financing Receivable Recorded Investment [Line Items]
Current Year	74,007		42,112
Year One	39,900		63,000
Year Two	59,415		284,208
Year Three	268,021		70,326
Year Four	69,370		17,749
Prior	46,726		32,129
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	557,439		509,524
Home mortgage | Special mention
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		0
Year Two	0		0
Year Three	0		0
Year Four	0		0
Prior	0		0
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	0		0
Home mortgage | Substandard
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		0
Year Two	0		0
Year Three	1,340		0
Year Four	0		0
Prior	764		0
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	2,104		0
Home mortgage | Doubtful
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		0
Year Two	0		0
Year Three	0		0
Year Four	0		0
Prior	0		0
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	0		0
Consumer
Financing Receivable Recorded Investment [Line Items]
Current Year	13		27
Year One	0		0
Year Two	0		0
Year Three	0		0
Year Four	0		0
Prior	0		0
Revolving Loans	23		247
Revolving Loans Converted to Term Loans	0		0
Total	36		274
Current period charge-offs
Current Year	0		0
Year One	0		0
Year Two	0		0
Year Three	0		0
Year Four	0		0
Prior	0		0
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	0	$ 0	0
Consumer | Pass
Financing Receivable Recorded Investment [Line Items]
Current Year	13		27
Year One	0		0
Year Two	0		0
Year Three	0		0
Year Four	0		0
Prior	0		0
Revolving Loans	23		247
Revolving Loans Converted to Term Loans	0		0
Total	36		274
Consumer | Special mention
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		0
Year Two	0		0
Year Three	0		0
Year Four	0		0
Prior	0		0
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	0		0
Consumer | Substandard
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		0
Year Two	0		0
Year Three	0		0
Year Four	0		0
Prior	0		0
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	0		0
Consumer | Doubtful
Financing Receivable Recorded Investment [Line Items]
Current Year	0		0
Year One	0		0
Year Two	0		0
Year Three	0		0
Year Four	0		0
Prior	0		0
Revolving Loans	0		0
Revolving Loans Converted to Term Loans	0		0
Total	$ 0		$ 0