Loans - Credit Quality Indicators (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	$ 328,019	$ 522,561	$ 328,019	$ 522,561	$ 899,034
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	856,952	707,129	856,952	707,129	628,578
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	568,230	644,355	568,230	644,355	429,480
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	381,352	258,131	381,352	258,131	224,846
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	192,867	185,281	192,867	185,281	191,012
Prior	626,542	397,669	626,542	397,669	483,884
Revolving Loans Amortized Cost Basis	115,935	129,676	115,935	129,676	126,373
Revolving Loan Converted to Term	0	0	0	0	0
Total	3,069,897	2,844,802	3,069,897	2,844,802	2,983,207
Total Loans	3,038,727	2,816,712	3,038,727	2,816,712	2,953,255
Current-period gross charge-offs
Total	1,280	907	2,608	1,736
Commercial
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	15,063	26,461	15,063	26,461	42,038
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	38,012	34,927	38,012	34,927	28,718
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	25,715	28,980	25,715	28,980	17,125
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	11,792	9,004	11,792	9,004	8,335
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	5,823	9,473	5,823	9,473	8,129
Prior	38,861	15,235	38,861	15,235	23,873
Revolving Loans Amortized Cost Basis	12,252	14,595	12,252	14,595	12,075
Revolving Loan Converted to Term	0	0	0	0	0
Total	147,518	138,675	147,518	138,675	140,293
Current-period gross charge-offs
Financing receivable, excluding accrued interest, year one, originated, current fiscal year, writeoff			0
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year, writeoff			0
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year, writeoff			0
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year, writeoff			0
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year, writeoff			0
Prior			0
Revolving Loans Amortized Cost Basis
Revolving Loan Converted to Term
Total			0
Commercial Real Estate
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	32,681	74,941	32,681	74,941	163,143
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	172,008	139,573	172,008	139,573	115,111
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	107,485	281,305	107,485	281,305	127,618
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	125,730	45,982	125,730	45,982	44,459
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	43,199	36,640	43,199	36,640	69,073
Prior	239,849	81,500	239,849	81,500	185,794
Revolving Loans Amortized Cost Basis	2,996	3,293	2,996	3,293	1,824
Revolving Loan Converted to Term	0	0	0	0	0
Total	723,948	663,234	723,948	663,234	707,022
Current-period gross charge-offs
Financing receivable, excluding accrued interest, year one, originated, current fiscal year, writeoff			0
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year, writeoff			0
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year, writeoff			0
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year, writeoff			0
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year, writeoff			0
Prior			0
Revolving Loans Amortized Cost Basis
Revolving Loan Converted to Term
Total			0
Consumer
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	217,721	301,629	217,721	301,629	483,288
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	415,103	338,269	415,103	338,269	286,299
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	238,782	193,272	238,782	193,272	155,426
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	122,385	117,140	122,385	117,140	88,490
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	64,441	58,208	64,441	58,208	39,009
Prior	28,860	22,139	28,860	22,139	12,119
Revolving Loans Amortized Cost Basis	473	454	473	454	504
Revolving Loan Converted to Term	0	0	0	0	0
Total	1,087,765	1,031,111	1,087,765	1,031,111	1,065,135
Current-period gross charge-offs
Financing receivable, excluding accrued interest, year one, originated, current fiscal year, writeoff			95
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year, writeoff			705
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year, writeoff			1,034
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year, writeoff			324
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year, writeoff			246
Prior			198
Revolving Loans Amortized Cost Basis
Revolving Loan Converted to Term
Total	1,274	903	2,602	1,702
Residential
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	62,554	119,530	62,554	119,530	210,565
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	231,829	194,360	231,829	194,360	198,450
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	196,248	140,798	196,248	140,798	129,311
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	121,445	86,005	121,445	86,005	83,562
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	79,404	80,960	79,404	80,960	74,801
Prior	318,972	278,795	318,972	278,795	262,098
Revolving Loans Amortized Cost Basis	100,214	111,334	100,214	111,334	111,970
Revolving Loan Converted to Term	0	0	0	0	0
Total	1,110,666	1,011,782	1,110,666	1,011,782	1,070,757
Current-period gross charge-offs
Financing receivable, excluding accrued interest, year one, originated, current fiscal year, writeoff			0
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year, writeoff			0
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year, writeoff			0
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year, writeoff			0
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year, writeoff			0
Prior			6
Revolving Loans Amortized Cost Basis
Revolving Loan Converted to Term
Total	6	0	6	30
Satisfactory | Commercial
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	15,063	26,461	15,063	26,461	42,038
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	38,012	31,578	38,012	31,578	28,718
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	25,715	25,469	25,715	25,469	16,870
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	11,653	8,527	11,653	8,527	7,857
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	5,763	9,473	5,763	9,473	8,129
Prior	35,571	15,179	35,571	15,179	20,379
Revolving Loans Amortized Cost Basis	9,487	8,674	9,487	8,674	8,909
Revolving Loan Converted to Term	0	0	0	0	0
Total	141,264	125,361	141,264	125,361	132,900
Satisfactory | Commercial Real Estate
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	32,681	72,102	32,681	72,102	152,858
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	162,581	134,785	162,581	134,785	115,111
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	105,800	260,080	105,800	260,080	121,811
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	123,336	40,965	123,336	40,965	43,647
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	42,397	36,546	42,397	36,546	63,913
Prior	191,641	73,592	191,641	73,592	159,876
Revolving Loans Amortized Cost Basis	2,971	3,269	2,971	3,269	1,603
Revolving Loan Converted to Term	0	0	0	0	0
Total	661,407	621,339	661,407	621,339	658,819
Special Mention | Commercial
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	0	0	0	0	0
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	0	0	0	0	0
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	0	0	0	0	0
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	139	0	139	0	0
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	0	0	0	0	0
Prior	0	50	0	50	30
Revolving Loans Amortized Cost Basis	0	0	0	0	30
Revolving Loan Converted to Term	0	0	0	0	0
Total	139	50	139	50	60
Special Mention | Commercial Real Estate
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	0	0	0	0	9,678
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	0	0	0	0	0
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	0	5,445	0	5,445	0
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	0	1,176	0	1,176	0
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	0	0	0	0	789
Prior	4,987	76	4,987	76	241
Revolving Loans Amortized Cost Basis	0	0	0	0	0
Revolving Loan Converted to Term	0	0	0	0	0
Total	4,987	6,697	4,987	6,697	10,708
Substandard | Commercial
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	0	0	0	0	0
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	0	3,349	0	3,349	0
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	0	3,511	0	3,511	255
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	0	477	0	477	478
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	60	0	60	0	0
Prior	3,290	6	3,290	6	3,464
Revolving Loans Amortized Cost Basis	2,765	5,921	2,765	5,921	3,136
Revolving Loan Converted to Term	0	0	0	0	0
Total	6,115	13,264	6,115	13,264	7,333
Substandard | Commercial Real Estate
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	0	2,839	0	2,839	607
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	9,427	4,788	9,427	4,788	0
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	1,685	15,780	1,685	15,780	5,807
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	2,394	3,841	2,394	3,841	812
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	802	94	802	94	4,371
Prior	43,221	7,832	43,221	7,832	25,677
Revolving Loans Amortized Cost Basis	25	24	25	24	221
Revolving Loan Converted to Term	0	0	0	0	0
Total	57,554	35,198	57,554	35,198	37,495
Doubtful | Commercial
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	0	0	0	0	0
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	0	0	0	0	0
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	0	0	0	0	0
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	0	0	0	0	0
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	0	0	0	0	0
Prior	0	0	0	0	0
Revolving Loans Amortized Cost Basis	0	0	0	0	0
Revolving Loan Converted to Term	0	0	0	0	0
Total	0	0	0	0	0
Doubtful | Commercial Real Estate
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	0	0	0	0	0
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	0	0	0	0	0
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	0	0	0	0	0
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	0	0	0	0	0
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	0	0	0	0	0
Prior	0	0	0	0	0
Revolving Loans Amortized Cost Basis	0	0	0	0	0
Revolving Loan Converted to Term	0	0	0	0	0
Total	0	0	0	0	0
Performing | Consumer
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	217,691	301,351	217,691	301,351	482,530
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	414,437	337,325	414,437	337,325	284,831
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	238,016	192,857	238,016	192,857	154,819
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	122,156	116,855	122,156	116,855	88,165
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	64,295	58,065	64,295	58,065	38,852
Prior	28,740	22,057	28,740	22,057	12,032
Revolving Loans Amortized Cost Basis	0	453	0	453	504
Revolving Loan Converted to Term	0	0	0	0	0
Total	1,085,335	1,028,963	1,085,335	1,028,963	1,061,733
Performing | Residential
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	62,554	119,530	62,554	119,530	210,565
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	231,714	194,360	231,714	194,360	198,195
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	195,831	139,857	195,831	139,857	128,372
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	120,506	85,977	120,506	85,977	82,965
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	78,455	80,850	78,455	80,850	74,281
Prior	316,683	276,354	316,683	276,354	259,787
Revolving Loans Amortized Cost Basis	99,788	111,080	99,788	111,080	111,563
Revolving Loan Converted to Term	0	0	0	0	0
Total	1,105,531	1,008,008	1,105,531	1,008,008	1,065,728
Nonperforming | Consumer
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	30	278	30	278	758
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	666	944	666	944	1,468
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	766	415	766	415	607
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	229	285	229	285	325
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	146	143	146	143	157
Prior	120	82	120	82	87
Revolving Loans Amortized Cost Basis	473	1	473	1	0
Revolving Loan Converted to Term	0	0	0	0	0
Total	2,430	2,148	2,430	2,148	3,402
Nonperforming | Residential
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	0	0	0	0	0
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	115	0	115	0	255
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	417	941	417	941	939
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	939	28	939	28	597
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	949	110	949	110	520
Prior	2,289	2,441	2,289	2,441	2,311
Revolving Loans Amortized Cost Basis	426	254	426	254	407
Revolving Loan Converted to Term	0	0	0	0	0
Total	$ 5,135	$ 3,774	$ 5,135	$ 3,774	$ 5,029