Loans and Allowance for Credit Losses - Portfolio of Risk-rated Loans by Grade and by Year of Origination (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
2023	$ 335,616	$ 488,572
2022	460,842	317,745
2021	292,711	220,319
2020	200,830	117,187
2019	108,509	51,825
Prior	321,583	306,137
Amortized Cost	1,720,091	1,501,785
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	331,700	488,435
2022	441,949	312,866
2021	275,480	218,661
2020	192,443	116,822
2019	108,444	48,233
Prior	305,533	289,603
Amortized Cost	1,655,549	1,474,620
Pass | Government guarantees
Financing Receivable, Credit Quality Indicator [Line Items]
2023	842	25,172
2022	8,194	36,531
2021	19,164	9,751
2020	2,469	12,885
2019	12,321	2,964
Prior	7,726	5,314
Amortized Cost	50,716	92,617
Pass | Net of government guarantees
Financing Receivable, Credit Quality Indicator [Line Items]
2023	330,858	463,263
2022	433,755	276,335
2021	256,316	208,910
2020	189,974	103,937
2019	96,123	45,269
Prior	297,807	284,289
Amortized Cost	1,604,833	1,382,003
Classified
Financing Receivable, Credit Quality Indicator [Line Items]
2023	3,916	137
2022	18,893	4,879
2021	17,231	1,658
2020	8,387	365
2019	65	3,592
Prior	16,050	16,534
Amortized Cost	64,542	27,165
Classified | Government guarantees
Financing Receivable, Credit Quality Indicator [Line Items]
2023	3,849	0
2022	16,896	4,396
2021	15,331	1,135
2020	7,259	0
2019	0	0
Prior	8,500	9,293
Amortized Cost	51,835	14,824
Classified | Net of government guarantees
Financing Receivable, Credit Quality Indicator [Line Items]
2023	67	137
2022	1,997	483
2021	1,900	523
2020	1,128	365
2019	65	3,592
Prior	7,550	7,241
Amortized Cost	12,707	12,341
Commercial & industrial loans
Financing Receivable, Credit Quality Indicator [Line Items]
2023	100,383	157,692
2022	142,711	91,422
2021	75,603	37,544
2020	32,182	17,972
2019	14,292	12,581
Prior	50,727	40,917
Amortized Cost	415,898	358,128
Commercial & industrial loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	96,467	157,555
2022	123,831	86,543
2021	58,372	37,147
2020	24,947	17,881
2019	14,227	9,844
Prior	48,281	40,571
Amortized Cost	366,125	349,541
Commercial & industrial loans | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
2023	3,916	137
2022	18,880	4,879
2021	17,231	397
2020	7,235	91
2019	65	2,737
Prior	2,446	346
Amortized Cost	49,773	8,587
Commercial real estate | Owner occupied properties
Financing Receivable, Credit Quality Indicator [Line Items]
2023	26,585	66,955
2022	68,242	70,777
2021	72,939	91,757
2020	84,363	32,564
2019	30,245	13,398
Prior	75,081	74,522
Amortized Cost	357,455	349,973
Commercial real estate | Owner occupied properties | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	26,585	66,955
2022	68,242	70,777
2021	72,939	90,496
2020	83,211	32,564
2019	30,245	13,233
Prior	73,253	69,701
Amortized Cost	354,475	343,726
Commercial real estate | Owner occupied properties | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	1,261
2020	1,152	0
2019	0	165
Prior	1,828	4,821
Amortized Cost	2,980	6,247
Commercial real estate | Non-owner occupied and multifamily properties
Financing Receivable, Credit Quality Indicator [Line Items]
2023	38,234	94,412
2022	95,181	82,352
2021	83,998	71,407
2020	69,550	58,307
2019	56,536	16,908
Prior	162,757	158,884
Amortized Cost	506,256	482,270
Commercial real estate | Non-owner occupied and multifamily properties | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	38,234	94,412
2022	95,181	82,352
2021	83,998	71,407
2020	69,550	58,033
2019	56,536	16,905
Prior	153,324	149,223
Amortized Cost	496,823	472,332
Commercial real estate | Non-owner occupied and multifamily properties | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	274
2019	0	3
Prior	9,433	9,661
Amortized Cost	9,433	9,938
Residential real estate | 1-4 family residential properties secured by first liens
Financing Receivable, Credit Quality Indicator [Line Items]
2023	114,314	52,117
2022	48,278	5,088
2021	5,120	6,001
2020	4,736	2,535
2019	2,434	541
Prior	5,967	7,099
Amortized Cost	180,849	73,381
Residential real estate | 1-4 family residential properties secured by first liens | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	114,314	52,117
2022	48,278	5,088
2021	5,120	6,001
2020	4,736	2,535
2019	2,434	462
Prior	5,835	6,968
Amortized Cost	180,717	73,171
Residential real estate | 1-4 family residential properties secured by first liens | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	79
Prior	132	131
Amortized Cost	132	210
Residential real estate | 1-4 family residential properties secured by junior liens and revolving secured by 1-4 family first liens
Financing Receivable, Credit Quality Indicator [Line Items]
2023	10,648	6,992
2022	5,283	3,376
2021	2,446	2,041
2020	1,452	2,763
2019	2,324	3,020
Prior	5,382	2,067
Amortized Cost	27,535	20,259
Residential real estate | 1-4 family residential properties secured by junior liens and revolving secured by 1-4 family first liens | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	10,648	6,992
2022	5,283	3,376
2021	2,446	2,041
2020	1,452	2,763
2019	2,324	2,781
Prior	5,053	2,060
Amortized Cost	27,206	20,013
Residential real estate | 1-4 family residential properties secured by junior liens and revolving secured by 1-4 family first liens | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0
2019	0	239
Prior	329	7
Amortized Cost	329	246
Residential real estate | 1-4 family residential construction loans
Financing Receivable, Credit Quality Indicator [Line Items]
2023	16,057	26,860
2022	6,205	3,897
2021	1,118	61
2020	21	0
2019	0	0
Prior	8,784	13,182
Amortized Cost	32,185	44,000
Residential real estate | 1-4 family residential construction loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	16,057	26,860
2022	6,205	3,897
2021	1,118	61
2020	21	0
2019	0	0
Prior	8,675	13,073
Amortized Cost	32,076	43,891
Residential real estate | 1-4 family residential construction loans | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	109	109
Amortized Cost	109	109
Other construction, land development and raw land loans
Financing Receivable, Credit Quality Indicator [Line Items]
2023	18,172	38,673
2022	53,412	42,448
2021	33,797	5,740
2020	3,186	1,713
2019	1,479	4,044
Prior	9,670	6,564
Amortized Cost	119,716	99,182
Other construction, land development and raw land loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	18,172	38,673
2022	53,412	42,448
2021	33,797	5,740
2020	3,186	1,713
2019	1,479	3,675
Prior	7,897	5,112
Amortized Cost	117,943	97,361
Other construction, land development and raw land loans | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	369
Prior	1,773	1,452
Amortized Cost	1,773	1,821
Obligations of states and political subdivisions in the US
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	32,319
2022	30,341	0
2021	0	0
2020	0	0
2019	0	219
Prior	122	1
Amortized Cost	30,463	32,539
Obligations of states and political subdivisions in the US | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	32,319
2022	30,341	0
2021	0	0
2020	0	0
2019	0	219
Prior	122	1
Amortized Cost	30,463	32,539
Obligations of states and political subdivisions in the US | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Amortized Cost	0	0
Agricultural production, including commercial fishing
Financing Receivable, Credit Quality Indicator [Line Items]
2023	7,842	9,748
2022	9,892	17,692
2021	17,095	3,740
2020	3,567	604
2019	589	879
Prior	1,938	1,436
Amortized Cost	40,923	34,099
Agricultural production, including commercial fishing | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	7,842	9,748
2022	9,892	17,692
2021	17,095	3,740
2020	3,567	604
2019	589	879
Prior	1,938	1,436
Amortized Cost	40,923	34,099
Agricultural production, including commercial fishing | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Amortized Cost	0	0
Consumer loans
Financing Receivable, Credit Quality Indicator [Line Items]
2023	2,791	1,513
2022	1,107	363
2021	282	481
2020	394	345
2019	279	235
Prior	1,133	1,398
Amortized Cost	5,986	4,335
Consumer loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	2,791	1,513
2022	1,094	363
2021	282	481
2020	394	345
2019	279	235
Prior	1,133	1,391
Amortized Cost	5,973	4,328
Consumer loans | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	13	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	7
Amortized Cost	13	7
Other loans
Financing Receivable, Credit Quality Indicator [Line Items]
2023	590	1,291
2022	190	330
2021	313	1,547
2020	1,379	384
2019	331	0
Prior	22	67
Amortized Cost	2,825	3,619
Other loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2023	590	1,291
2022	190	330
2021	313	1,547
2020	1,379	384
2019	331	0
Prior	22	67
Amortized Cost	2,825	3,619
Other loans | Classified
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0	0
2022	0	0
2021	0	0
2020	0	0
2019	0	0
Prior	0	0
Amortized Cost	$ 0	$ 0