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Loans and Allowance for Credit Losses on Loans - Credit Quality (Details) - USD ($)	9 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Loans by risk rating
2022 / 2021	$ 974,030,000
2021 / 2020	909,798,000	$ 1,117,231,000
2020 / 2019	506,839,000	617,495,000
2019 / 2018	291,281,000	438,126,000
2018 / 2017	194,274,000	273,820,000
2017 / 2016		183,708,000
Prior	278,728,000	234,222,000
Revolving Loans	713,756,000	556,172,000
Revolving Loans Converted To Term Loans	628,000	30,000
Total Loans	3,869,334,000	3,420,804,000
Minimum
Loans by risk rating
Loan commitment for inclusion in credit quality analysis	50,000
Pass [Member]
Loans by risk rating
2022 / 2021	946,621,000	1,079,972,000
2021 / 2020	873,420,000	607,575,000
2020 / 2019	442,402,000	392,999,000
2019 / 2018	196,825,000	267,763,000
2018 / 2017	193,016,000	177,970,000
Prior	264,572,000	224,824,000
Revolving Loans	686,455,000	546,694,000
Revolving Loans Converted To Term Loans	628,000	30,000
Total Loans	3,603,939,000	3,297,827,000
Special Mention [Member]
Loans by risk rating
2022 / 2021	16,812,000	16,169,000
2021 / 2020	13,796,000	2,222,000
2020 / 2019	59,754,000	26,029,000
2019 / 2018	38,693,000
2018 / 2017	244,000
Prior	4,217,000
Revolving Loans	18,149,000	3,816,000
Total Loans	151,665,000	48,236,000
Substandard [Member]
Loans by risk rating
2022 / 2021	10,597,000	21,090,000
2021 / 2020	22,582,000	7,698,000
2020 / 2019	4,683,000	19,098,000
2019 / 2018	55,763,000	6,057,000
2018 / 2017	1,014,000	5,738,000
Prior	9,939,000	9,398,000
Revolving Loans	9,152,000	5,662,000
Total Loans	113,730,000	74,741,000
Commercial
Loans by risk rating
2022 / 2021	178,865,000	201,800,000
2021 / 2020	83,467,000	54,770,000
2020 / 2019	28,367,000	53,429,000
2019 / 2018	30,032,000	28,503,000
2018 / 2017	8,517,000	5,176,000
Prior	5,313,000	11,020,000
Revolving Loans	553,047,000	416,746,000
Revolving Loans Converted To Term Loans	473,000	30,000
Total Loans	888,081,000	771,474,000
Commercial | Pass [Member]
Loans by risk rating
2022 / 2021	170,428,000	192,258,000
2021 / 2020	77,354,000	50,638,000
2020 / 2019	23,879,000	38,614,000
2019 / 2018	14,671,000	28,177,000
2018 / 2017	8,502,000	5,176,000
Prior	5,253,000	10,945,000
Revolving Loans	527,792,000	408,394,000
Revolving Loans Converted To Term Loans	473,000	30,000
Total Loans	828,352,000	734,232,000
Commercial | Special Mention [Member]
Loans by risk rating
2022 / 2021	3,030,000	44,000
2021 / 2020	3,137,000	84,000
2020 / 2019	1,274,000	694,000
2019 / 2018	2,528,000
Revolving Loans	18,038,000	3,708,000
Total Loans	28,007,000	4,530,000
Commercial | Substandard [Member]
Loans by risk rating
2022 / 2021	5,407,000	9,498,000
2021 / 2020	2,976,000	4,048,000
2020 / 2019	3,214,000	14,121,000
2019 / 2018	12,833,000	326,000
2018 / 2017	15,000
Prior	60,000	75,000
Revolving Loans	7,217,000	4,644,000
Total Loans	31,722,000	32,712,000
Real estate - residential
Loans by risk rating
Mortgage loans in process of foreclosure	659,000	488,000
Leases
Loans by risk rating
2022 / 2021	122,629,000	83,402,000
2021 / 2020	69,757,000	44,129,000
2020 / 2019	30,508,000	35,093,000
2019 / 2018	21,673,000	9,573,000
2018 / 2017	5,628,000	1,170,000
Prior	1,408,000	2,664,000
Total Loans	251,603,000	176,031,000
Leases | Pass [Member]
Loans by risk rating
2022 / 2021	122,629,000	83,402,000
2021 / 2020	69,757,000	44,129,000
2020 / 2019	30,415,000	32,259,000
2019 / 2018	21,531,000	8,950,000
2018 / 2017	5,628,000	1,170,000
Prior	1,408,000	2,367,000
Total Loans	251,368,000	172,277,000
Leases | Substandard [Member]
Loans by risk rating
2020 / 2019	93,000	2,834,000
2019 / 2018	142,000	623,000
Prior		297,000
Total Loans	235,000	3,754,000
Commercial real estate - Investor
Loans by risk rating
2022 / 2021	340,673,000	263,050,000
2021 / 2020	240,919,000	177,596,000
2020 / 2019	148,301,000	129,698,000
2019 / 2018	88,953,000	85,230,000
2018 / 2017	49,805,000	68,422,000
Prior	66,299,000	57,330,000
Revolving Loans	6,960,000	18,602,000
Total Loans	941,910,000	799,928,000
Commercial real estate - Investor | Pass [Member]
Loans by risk rating
2022 / 2021	335,320,000	245,346,000
2021 / 2020	238,901,000	175,218,000
2020 / 2019	148,301,000	118,697,000
2019 / 2018	65,813,000	85,049,000
2018 / 2017	49,805,000	64,810,000
Prior	60,056,000	55,523,000
Revolving Loans	6,960,000	18,602,000
Total Loans	905,156,000	763,245,000
Commercial real estate - Investor | Special Mention [Member]
Loans by risk rating
2022 / 2021	5,353,000	15,466,000
2020 / 2019		10,550,000
Prior	3,149,000
Total Loans	8,502,000	26,016,000
Commercial real estate - Investor | Substandard [Member]
Loans by risk rating
2022 / 2021		2,238,000
2021 / 2020	2,018,000	2,378,000
2020 / 2019		451,000
2019 / 2018	23,140,000	181,000
2018 / 2017		3,612,000
Prior	3,094,000	1,807,000
Total Loans	28,252,000	10,667,000
Commercial real estate - Owner occupied
Loans by risk rating
2022 / 2021	175,121,000	298,543,000
2021 / 2020	267,587,000	156,295,000
2020 / 2019	157,986,000	94,964,000
2019 / 2018	86,393,000	60,915,000
2018 / 2017	51,643,000	55,487,000
Prior	104,468,000	63,119,000
Revolving Loans	33,753,000	2,522,000
Total Loans	876,951,000	731,845,000
Commercial real estate - Owner occupied | Pass [Member]
Loans by risk rating
2022 / 2021	164,067,000	290,225,000
2021 / 2020	241,671,000	155,353,000
2020 / 2019	103,552,000	90,325,000
2019 / 2018	48,982,000	60,915,000
2018 / 2017	51,399,000	54,236,000
Prior	100,087,000	59,887,000
Revolving Loans	33,753,000	2,522,000
Total Loans	743,511,000	713,463,000
Commercial real estate - Owner occupied | Special Mention [Member]
Loans by risk rating
2022 / 2021	8,429,000
2021 / 2020	8,600,000
2020 / 2019	53,299,000	2,953,000
2019 / 2018	19,102,000
2018 / 2017	244,000
Prior	1,068,000
Total Loans	90,742,000	2,953,000
Commercial real estate - Owner occupied | Substandard [Member]
Loans by risk rating
2022 / 2021	2,625,000	8,318,000
2021 / 2020	17,316,000	942,000
2020 / 2019	1,135,000	1,686,000
2019 / 2018	18,309,000
2018 / 2017		1,251,000
Prior	3,313,000	3,232,000
Total Loans	42,698,000	15,429,000
Construction
Loans by risk rating
2022 / 2021	28,609,000	88,780,000
2021 / 2020	79,090,000	67,767,000
2020 / 2019	49,319,000	42,101,000
2019 / 2018	12,801,000	4,671,000
2018 / 2017	2,886,000	477,000
Prior	1,435,000	1,193,000
Revolving Loans	2,560,000	1,143,000
Total Loans	176,700,000	206,132,000
Construction | Pass [Member]
Loans by risk rating
2022 / 2021	27,377,000	88,620,000
2021 / 2020	77,625,000	65,629,000
2020 / 2019	44,138,000	37,169,000
2019 / 2018	2,460,000	2,727,000
2018 / 2017	2,886,000	477,000
Prior	1,435,000	1,193,000
Revolving Loans	2,560,000	1,143,000
Total Loans	158,481,000	196,958,000
Construction | Special Mention [Member]
Loans by risk rating
2021 / 2020	1,465,000	2,138,000
2020 / 2019	5,181,000	4,932,000
2019 / 2018	10,226,000
Total Loans	16,872,000	7,070,000
Construction | Substandard [Member]
Loans by risk rating
2022 / 2021	1,232,000	160,000
2019 / 2018	115,000	1,944,000
Total Loans	1,347,000	2,104,000
Residential real estate - Investor
Loans by risk rating
2022 / 2021	13,656,000	13,492,000
2021 / 2020	10,482,000	9,902,000
2020 / 2019	7,079,000	13,084,000
2019 / 2018	10,007,000	6,589,000
2018 / 2017	5,435,000	7,444,000
Prior	11,707,000	11,020,000
Revolving Loans	1,214,000	1,868,000
Total Loans	59,580,000	63,399,000
Residential real estate - Investor | Pass [Member]
Loans by risk rating
2022 / 2021	13,481,000	13,371,000
2021 / 2020	10,482,000	9,758,000
2020 / 2019	7,079,000	13,084,000
2019 / 2018	9,508,000	6,392,000
2018 / 2017	5,246,000	7,059,000
Prior	11,285,000	10,602,000
Revolving Loans	1,214,000	1,868,000
Total Loans	58,295,000	62,134,000
Residential real estate - Investor | Substandard [Member]
Loans by risk rating
2022 / 2021	175,000	121,000
2021 / 2020		144,000
2019 / 2018	499,000	197,000
2018 / 2017	189,000	385,000
Prior	422,000	418,000
Total Loans	1,285,000	1,265,000
Residential real estate - Owner occupied
Loans by risk rating
2022 / 2021	36,688,000	48,990,000
2021 / 2020	46,296,000	32,095,000
2020 / 2019	29,402,000	20,996,000
2019 / 2018	17,132,000	14,523,000
2018 / 2017	12,553,000	30,738,000
Prior	77,333,000	63,854,000
Revolving Loans	1,565,000	2,052,000
Total Loans	220,969,000	213,248,000
Residential real estate - Owner occupied | Pass [Member]
Loans by risk rating
2022 / 2021	36,688,000	48,009,000
2021 / 2020	45,430,000	31,912,000
2020 / 2019	29,163,000	20,990,000
2019 / 2018	16,407,000	13,304,000
2018 / 2017	12,421,000	30,562,000
Prior	74,772,000	60,661,000
Revolving Loans	1,565,000	2,052,000
Total Loans	216,446,000	207,490,000
Residential real estate - Owner occupied | Special Mention [Member]
Loans by risk rating
2022 / 2021		659,000
2021 / 2020	594,000
Total Loans	594,000	659,000
Residential real estate - Owner occupied | Substandard [Member]
Loans by risk rating
2022 / 2021		322,000
2021 / 2020	272,000	183,000
2020 / 2019	239,000	6,000
2019 / 2018	725,000	1,219,000
2018 / 2017	132,000	176,000
Prior	2,561,000	3,193,000
Total Loans	3,929,000	5,099,000
Multifamily
Loans by risk rating
2022 / 2021	72,925,000	109,608,000
2021 / 2020	108,581,000	71,748,000
2020 / 2019	53,862,000	46,193,000
2019 / 2018	22,396,000	62,733,000
2018 / 2017	57,019,000	11,701,000
Prior	7,817,000	7,117,000
Revolving Loans	101,000	64,000
Revolving Loans Converted To Term Loans	155,000
Total Loans	322,856,000	309,164,000
Multifamily | Pass [Member]
Loans by risk rating
2022 / 2021	71,830,000	109,175,000
2021 / 2020	108,581,000	71,748,000
2020 / 2019	53,862,000	39,293,000
2019 / 2018	15,559,000	61,190,000
2018 / 2017	56,411,000	11,399,000
Prior	7,538,000	7,117,000
Revolving Loans	101,000	64,000
Revolving Loans Converted To Term Loans	155,000
Total Loans	314,037,000	299,986,000
Multifamily | Special Mention [Member]
Loans by risk rating
2020 / 2019		6,900,000
2019 / 2018	6,837,000
Total Loans	6,837,000	6,900,000
Multifamily | Substandard [Member]
Loans by risk rating
2022 / 2021	1,095,000	433,000
2019 / 2018		1,543,000
2018 / 2017	608,000	302,000
Prior	279,000
Total Loans	1,982,000	2,278,000
HELOC
Loans by risk rating
2022 / 2021	1,972,000	907,000
2021 / 2020	517,000	2,091,000
2020 / 2019	1,512,000	2,131,000
2019 / 2018	1,728,000	822,000
2018 / 2017	731,000	1,679,000
Prior	2,826,000	12,691,000
Revolving Loans	106,822,000	105,969,000
Total Loans	116,108,000	126,290,000
HELOC | Pass [Member]
Loans by risk rating
2022 / 2021	1,909,000	907,000
2021 / 2020	517,000	2,091,000
2020 / 2019	1,512,000	2,131,000
2019 / 2018	1,728,000	805,000
2018 / 2017	661,000	1,667,000
Prior	2,616,000	12,315,000
Revolving Loans	104,776,000	104,843,000
Total Loans	113,719,000	124,759,000
HELOC | Special Mention [Member]
Loans by risk rating
Revolving Loans	111,000	108,000
Total Loans	111,000	108,000
HELOC | Substandard [Member]
Loans by risk rating
2022 / 2021	63,000
2019 / 2018		17,000
2018 / 2017	70,000	12,000
Prior	210,000	376,000
Revolving Loans	1,935,000	1,018,000
Total Loans	2,278,000	1,423,000
Other
Loans by risk rating
2022 / 2021	2,892,000	8,659,000
2021 / 2020	3,102,000	1,102,000
2020 / 2019	503,000	437,000
2019 / 2018	166,000	261,000
2018 / 2017	57,000	1,414,000
Prior	122,000	4,214,000
Revolving Loans	7,734,000	7,206,000
Total Loans	14,576,000	23,293,000
Other | Pass [Member]
Loans by risk rating
2022 / 2021	2,892,000	8,659,000
2021 / 2020	3,102,000	1,099,000
2020 / 2019	501,000	437,000
2019 / 2018	166,000	254,000
2018 / 2017	57,000	1,414,000
Prior	122,000	4,214,000
Revolving Loans	7,734,000	7,206,000
Total Loans	14,574,000	23,283,000
Other | Substandard [Member]
Loans by risk rating
2021 / 2020		3,000
2020 / 2019	2,000
2019 / 2018		7,000
Total Loans	$ 2,000	$ 10,000

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