Allowance for Credit Losses on Loans and Off-Balance Sheet Credit Exposures - Schedule of Financing Receivable Credit Quality Indicators (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
2024	$ 212,829	$ 227,925
2023	169,068	246,472
2022	222,455	177,006
2021	170,484	71,494
2020	65,769	61,135
Prior	229,712	199,256
Revolving	47,144	44,982
Total	1,117,461	1,028,270
Residential Real Estate \| Non-revolving residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	59,421	88,573
2023	79,023	119,253
2022	113,336	88,808
2021	84,073	31,998
2020	30,596	9,377
Prior	60,348	59,400
Revolving	0	0
Total	426,797	397,409
Residential Real Estate \| Revolving residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving	21,347	18,902
Total	21,347	18,902
Residential Real Estate \| Pass \| Non-revolving residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	55,063	84,211
2023	74,148	112,215
2022	102,488	83,137
2021	79,063	29,704
2020	27,940	8,991
Prior	54,612	53,021
Revolving	0	0
Total	393,314	371,279
Residential Real Estate \| Pass \| Revolving residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving	19,839	17,133
Total	19,839	17,133
Residential Real Estate \| Satisfactory/Monitor \| Non-revolving residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	4,358	4,362
2023	4,875	7,038
2022	10,848	5,671
2021	5,010	2,280
2020	2,498	386
Prior	5,639	5,873
Revolving	0	0
Total	33,228	25,610
Residential Real Estate \| Satisfactory/Monitor \| Revolving residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving	1,483	1,724
Total	1,483	1,724
Residential Real Estate \| Substandard \| Non-revolving residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	14
2020	158	0
Prior	97	506
Revolving	0	0
Total	255	520
Residential Real Estate \| Substandard \| Revolving residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving	25	45
Total	25	45
Construction Real Estate \| Commercial construction real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	12,432	14,048
2023	22,702	9,440
2022	8,807	11,088
2021	13,621	971
2020	625	437
Prior	946	989
Revolving	0	0
Total	59,133	36,973
Construction Real Estate \| Residential construction real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	24,397	28,474
2023	20,323	20,018
2022	4,818	1,066
2021	1,110	1,981
2020	493	0
Prior	0	123
Revolving	0	0
Total	51,141	51,662
Construction Real Estate \| Pass \| Commercial construction real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	3,937	3,736
2023	2,833	5,767
2022	4,797	2,736
2021	1,537	616
2020	572	437
Prior	867	873
Revolving	0	0
Total	14,543	14,165
Construction Real Estate \| Pass \| Residential construction real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	23,535	24,496
2023	18,547	17,904
2022	4,038	498
2021	195	0
2020	0	0
Prior	0	123
Revolving	0	0
Total	46,315	43,021
Construction Real Estate \| Satisfactory/Monitor \| Commercial construction real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	8,495	10,312
2023	19,869	3,673
2022	4,010	8,352
2021	12,084	355
2020	53	0
Prior	79	116
Revolving	0	0
Total	44,590	22,808
Construction Real Estate \| Satisfactory/Monitor \| Residential construction real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	862	3,978
2023	1,776	2,114
2022	780	568
2021	915	1,981
2020	493	0
Prior	0	0
Revolving	0	0
Total	4,826	8,641
Construction Real Estate \| Substandard \| Commercial construction real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Construction Real Estate \| Substandard \| Residential construction real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Commercial Real Estate \| Non-residential commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	32,206	23,885
2023	26,773	68,991
2022	66,169	48,381
2021	46,660	25,652
2020	24,456	29,822
Prior	97,060	81,234
Revolving	20,069	20,183
Total	313,393	298,148
Commercial Real Estate \| Multi-family residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	1,634	1,091
2023	2,783	17,849
2022	17,201	22,071
2021	20,625	7,725
2020	7,451	18,159
Prior	52,559	38,449
Revolving	0	0
Total	102,253	105,344
Commercial Real Estate \| Pass \| Non-residential commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	3,031	5,977
2023	5,112	44,428
2022	40,902	34,562
2021	33,096	18,327
2020	17,436	23,650
Prior	68,634	57,197
Revolving	4,809	16,629
Total	173,020	200,770
Commercial Real Estate \| Pass \| Multi-family residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	1,068	250
2023	287	5,364
2022	4,348	10,208
2021	10,257	2,061
2020	1,883	8,226
Prior	42,199	34,993
Revolving	0	0
Total	60,042	61,102
Commercial Real Estate \| Satisfactory/Monitor \| Non-residential commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	29,175	17,908
2023	21,661	24,563
2022	25,267	13,819
2021	13,564	5,552
2020	5,363	6,172
Prior	28,047	23,521
Revolving	15,208	3,486
Total	138,285	95,021
Commercial Real Estate \| Satisfactory/Monitor \| Multi-family residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	566	841
2023	2,496	12,485
2022	12,853	11,863
2021	10,368	5,664
2020	5,568	9,933
Prior	10,100	2,126
Revolving	0	0
Total	41,951	42,912
Commercial Real Estate \| Substandard \| Non-residential commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	1,773
2020	1,657	0
Prior	379	516
Revolving	52	68
Total	2,088	2,357
Commercial Real Estate \| Substandard \| Multi-family residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	260	1,330
Revolving	0	0
Total	260	1,330
Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
2024	2,671	3,872
2023	5,093	7,637
2022	5,934	4,475
2021	3,652	1,138
2020	677	2,981
Prior	14,877	14,476
Revolving	5,699	5,869
Total	38,603	40,448
Commercial \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2024	1,800	1,958
2023	2,750	6,394
2022	4,735	2,125
2021	1,620	671
2020	446	2,849
Prior	7,803	7,755
Revolving	4,230	4,992
Total	23,384	26,744
Commercial \| Satisfactory/Monitor
Financing Receivable, Credit Quality Indicator [Line Items]
2024	871	1,914
2023	2,343	1,243
2022	1,199	2,350
2021	2,032	467
2020	231	132
Prior	7,072	6,717
Revolving	1,245	648
Total	14,993	13,471
Commercial \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	2	4
Revolving	224	229
Total	226	233
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2024	747	1,586
2023	917	342
2022	135	131
2021	61	98
2020	73	229
Prior	200	175
Revolving	29	28
Total	2,162	2,589
Consumer \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2024	688	1,566
2023	917	342
2022	135	131
2021	61	98
2020	73	229
Prior	200	175
Revolving	29	28
Total	2,103	2,569
Consumer \| Satisfactory/Monitor
Financing Receivable, Credit Quality Indicator [Line Items]
2024	59	20
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving	0	0
Total	59	20
Consumer \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Municipal
Financing Receivable, Credit Quality Indicator [Line Items]
2024	79,321	66,396
2023	11,454	2,942
2022	6,055	986
2021	682	1,931
2020	1,398	130
Prior	3,722	4,410
Revolving	0	0
Total	102,632	76,795
Municipal \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2024	79,321	66,396
2023	11,454	2,942
2022	6,055	986
2021	682	1,931
2020	1,398	130
Prior	3,722	4,410
Revolving	0	0
Total	102,632	76,795
Municipal \| Satisfactory/Monitor
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving	0	0
Total	0	0
Municipal \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving	0	0
Total	$ 0	$ 0

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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