Loans and Allowance for Credit Losses on Loans - Credit Quality (Details) - USD ($)	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Loans by risk rating
2022 / 2021	$ 619,014,000
2021 / 2020	943,435,000	$ 1,117,231,000
2020 / 2019	534,057,000	617,495,000
2019 / 2018	346,245,000	438,126,000
2018 / 2017	203,785,000	273,820,000
2017 / 2016		183,708,000
Prior	359,328,000	234,222,000
Revolving Loans	619,206,000	556,172,000
Revolving Loans Converted To Term Loans		30,000
Total Loans	3,625,070,000	3,420,804,000
Total Loans		3,110,000
Minimum
Loans by risk rating
Loan commitment for inclusion in credit quality analysis	50,000
Pass [Member]
Loans by risk rating
2022 / 2021	599,822,000	1,079,972,000
2021 / 2020	890,491,000	607,575,000
2020 / 2019	484,011,000	392,999,000
2019 / 2018	246,971,000	267,763,000
2018 / 2017	202,748,000	177,970,000
Prior	348,231,000	224,824,000
Revolving Loans	611,676,000	546,694,000
Revolving Loans Converted To Term Loans		30,000
Total Loans	3,383,950,000	3,297,827,000
Special Mention [Member]
Loans by risk rating
2022 / 2021	8,493,000	16,169,000
2021 / 2020	22,394,000	2,222,000
2020 / 2019	44,288,000	26,029,000
2019 / 2018	57,941,000
Revolving Loans	4,840,000	3,816,000
Total Loans	137,956,000	48,236,000
Substandard [Member]
Loans by risk rating
2022 / 2021	10,699,000	21,090,000
2021 / 2020	30,550,000	7,698,000
2020 / 2019	5,758,000	19,098,000
2019 / 2018	41,333,000	6,057,000
2018 / 2017	1,037,000	5,738,000
Prior	11,097,000	9,398,000
Revolving Loans	2,690,000	5,662,000
Total Loans	103,164,000	74,741,000
Commercial
Loans by risk rating
2022 / 2021	110,759,000	201,800,000
2021 / 2020	103,231,000	54,770,000
2020 / 2019	38,989,000	53,429,000
2019 / 2018	32,624,000	28,503,000
2018 / 2017	13,200,000	5,176,000
Prior	32,498,000	11,020,000
Revolving Loans	475,424,000	416,746,000
Revolving Loans Converted To Term Loans		30,000
Total Loans	806,725,000	771,474,000
Commercial | Pass [Member]
Loans by risk rating
2022 / 2021	101,846,000	192,258,000
2021 / 2020	84,311,000	50,638,000
2020 / 2019	34,286,000	38,614,000
2019 / 2018	16,069,000	28,177,000
2018 / 2017	13,178,000	5,176,000
Prior	32,438,000	10,945,000
Revolving Loans	468,212,000	408,394,000
Revolving Loans Converted To Term Loans		30,000
Total Loans	750,340,000	734,232,000
Commercial | Special Mention [Member]
Loans by risk rating
2022 / 2021	88,000	44,000
2021 / 2020	15,326,000	84,000
2020 / 2019	1,394,000	694,000
2019 / 2018	3,160,000
Revolving Loans	4,840,000	3,708,000
Total Loans	24,808,000	4,530,000
Commercial | Substandard [Member]
Loans by risk rating
2022 / 2021	8,825,000	9,498,000
2021 / 2020	3,594,000	4,048,000
2020 / 2019	3,309,000	14,121,000
2019 / 2018	13,395,000	326,000
2018 / 2017	22,000
Prior	60,000	75,000
Revolving Loans	2,372,000	4,644,000
Total Loans	31,577,000	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	85,782,000	83,402,000
2021 / 2020	74,574,000	44,129,000
2020 / 2019	34,929,000	35,093,000
2019 / 2018	26,390,000	9,573,000
2018 / 2017	7,054,000	1,170,000
Prior	1,948,000	2,664,000
Total Loans	230,677,000	176,031,000
Leases | Pass [Member]
Loans by risk rating
2022 / 2021	85,782,000	83,402,000
2021 / 2020	74,574,000	44,129,000
2020 / 2019	34,929,000	32,259,000
2019 / 2018	24,334,000	8,950,000
2018 / 2017	7,054,000	1,170,000
Prior	1,713,000	2,367,000
Total Loans	228,386,000	172,277,000
Leases | Special Mention [Member]
Loans by risk rating
2019 / 2018	286,000
Total Loans	286,000
Leases | Substandard [Member]
Loans by risk rating
2020 / 2019		2,834,000
2019 / 2018	1,770,000	623,000
Prior	235,000	297,000
Total Loans	2,005,000	3,754,000
Commercial real estate - Investor
Loans by risk rating
2022 / 2021	245,689,000	332,951,000
2021 / 2020	319,803,000	236,342,000
2020 / 2019	214,559,000	158,512,000
2019 / 2018	135,419,000	85,230,000
2018 / 2017	52,267,000	68,422,000
Prior	88,973,000	57,330,000
Revolving Loans	19,968,000	18,602,000
Total Loans	1,076,678,000	957,389,000
Commercial real estate - Investor | Pass [Member]
Loans by risk rating
2022 / 2021	245,689,000	315,247,000
2021 / 2020	310,869,000	233,964,000
2020 / 2019	185,655,000	147,511,000
2019 / 2018	83,699,000	85,049,000
2018 / 2017	52,267,000	64,810,000
Prior	85,785,000	55,523,000
Revolving Loans	19,968,000	18,602,000
Total Loans	983,932,000	920,706,000
Commercial real estate - Investor | Special Mention [Member]
Loans by risk rating
2022 / 2021		15,466,000
2021 / 2020	4,955,000
2020 / 2019	28,904,000	10,550,000
2019 / 2018	28,480,000
Total Loans	62,339,000	26,016,000
Commercial real estate - Investor | Substandard [Member]
Loans by risk rating
2022 / 2021		2,238,000
2021 / 2020	3,979,000	2,378,000
2020 / 2019		451,000
2019 / 2018	23,240,000	181,000
2018 / 2017		3,612,000
Prior	3,188,000	1,807,000
Total Loans	30,407,000	10,667,000
Commercial real estate - Owner occupied
Loans by risk rating
2022 / 2021	80,008,000	228,642,000
2021 / 2020	201,248,000	97,549,000
2020 / 2019	107,483,000	66,150,000
2019 / 2018	74,035,000	60,915,000
2018 / 2017	53,156,000	55,487,000
Prior	110,328,000	63,119,000
Revolving Loans	1,640,000	2,522,000
Total Loans	627,898,000	574,384,000
Commercial real estate - Owner occupied | Pass [Member]
Loans by risk rating
2022 / 2021	71,396,000	220,324,000
2021 / 2020	178,903,000	96,607,000
2020 / 2019	97,521,000	61,511,000
2019 / 2018	63,526,000	60,915,000
2018 / 2017	53,156,000	54,236,000
Prior	107,040,000	59,887,000
Revolving Loans	1,640,000	2,522,000
Total Loans	573,182,000	556,002,000
Commercial real estate - Owner occupied | Special Mention [Member]
Loans by risk rating
2022 / 2021	8,405,000
2020 / 2019	8,766,000	2,953,000
2019 / 2018	8,830,000
Total Loans	26,001,000	2,953,000
Commercial real estate - Owner occupied | Substandard [Member]
Loans by risk rating
2022 / 2021	207,000	8,318,000
2021 / 2020	22,345,000	942,000
2020 / 2019	1,196,000	1,686,000
2019 / 2018	1,679,000
2018 / 2017		1,251,000
Prior	3,288,000	3,232,000
Total Loans	28,715,000	15,429,000
Construction
Loans by risk rating
2022 / 2021	22,741,000	88,780,000
2021 / 2020	72,347,000	67,767,000
2020 / 2019	54,830,000	42,101,000
2019 / 2018	12,807,000	4,671,000
2018 / 2017	2,828,000	477,000
Prior	1,678,000	1,193,000
Revolving Loans	2,806,000	1,143,000
Total Loans	170,037,000	206,132,000
Construction | Pass [Member]
Loans by risk rating
2022 / 2021	21,503,000	88,620,000
2021 / 2020	70,850,000	65,629,000
2020 / 2019	49,606,000	37,169,000
2019 / 2018	2,596,000	2,727,000
2018 / 2017	2,828,000	477,000
Prior	1,678,000	1,193,000
Revolving Loans	2,806,000	1,143,000
Total Loans	151,867,000	196,958,000
Construction | Special Mention [Member]
Loans by risk rating
2021 / 2020	1,497,000	2,138,000
2020 / 2019	5,224,000	4,932,000
2019 / 2018	10,211,000
Total Loans	16,932,000	7,070,000
Construction | Substandard [Member]
Loans by risk rating
2022 / 2021	1,238,000	160,000
2019 / 2018		1,944,000
Total Loans	1,238,000	2,104,000
Residential real estate - Investor
Loans by risk rating
2022 / 2021	12,597,000	13,492,000
2021 / 2020	11,037,000	9,902,000
2020 / 2019	7,308,000	13,084,000
2019 / 2018	10,228,000	6,589,000
2018 / 2017	5,814,000	7,444,000
Prior	13,162,000	11,020,000
Revolving Loans	1,074,000	1,868,000
Total Loans	61,220,000	63,399,000
Residential real estate - Investor | Pass [Member]
Loans by risk rating
2022 / 2021	12,597,000	13,371,000
2021 / 2020	11,037,000	9,758,000
2020 / 2019	7,308,000	13,084,000
2019 / 2018	9,722,000	6,392,000
2018 / 2017	5,623,000	7,059,000
Prior	12,613,000	10,602,000
Revolving Loans	1,074,000	1,868,000
Total Loans	59,974,000	62,134,000
Residential real estate - Investor | Substandard [Member]
Loans by risk rating
2022 / 2021		121,000
2021 / 2020		144,000
2019 / 2018	506,000	197,000
2018 / 2017	191,000	385,000
Prior	549,000	418,000
Total Loans	1,246,000	1,265,000
Residential real estate - Owner occupied
Loans by risk rating
2022 / 2021	2,524,000	48,990,000
2021 / 2020	46,744,000	32,095,000
2020 / 2019	30,009,000	20,996,000
2019 / 2018	17,524,000	14,523,000
2018 / 2017	13,132,000	30,738,000
Prior	96,457,000	63,854,000
Revolving Loans	1,446,000	2,052,000
Total Loans	207,836,000	213,248,000
Residential real estate - Owner occupied | Pass [Member]
Loans by risk rating
2022 / 2021	2,524,000	48,009,000
2021 / 2020	45,874,000	31,912,000
2020 / 2019	29,768,000	20,990,000
2019 / 2018	16,812,000	13,304,000
2018 / 2017	13,000,000	30,562,000
Prior	94,011,000	60,661,000
Revolving Loans	1,446,000	2,052,000
Total Loans	203,435,000	207,490,000
Residential real estate - Owner occupied | Special Mention [Member]
Loans by risk rating
2022 / 2021		659,000
2021 / 2020	616,000
Total Loans	616,000	659,000
Residential real estate - Owner occupied | Substandard [Member]
Loans by risk rating
2022 / 2021		322,000
2021 / 2020	254,000	183,000
2020 / 2019	241,000	6,000
2019 / 2018	712,000	1,219,000
2018 / 2017	132,000	176,000
Prior	2,446,000	3,193,000
Total Loans	3,785,000	5,099,000
Multifamily
Loans by risk rating
2022 / 2021	57,222,000	109,608,000
2021 / 2020	109,808,000	71,748,000
2020 / 2019	43,793,000	46,193,000
2019 / 2018	35,179,000	62,733,000
2018 / 2017	55,496,000	11,701,000
Prior	9,154,000	7,117,000
Revolving Loans	54,000	64,000
Total Loans	310,706,000	309,164,000
Multifamily | Pass [Member]
Loans by risk rating
2022 / 2021	56,793,000	109,175,000
2021 / 2020	109,808,000	71,748,000
2020 / 2019	43,793,000	39,293,000
2019 / 2018	28,315,000	61,190,000
2018 / 2017	54,875,000	11,399,000
Prior	8,868,000	7,117,000
Revolving Loans	54,000	64,000
Total Loans	302,506,000	299,986,000
Multifamily | Special Mention [Member]
Loans by risk rating
2020 / 2019		6,900,000
2019 / 2018	6,864,000
Total Loans	6,864,000	6,900,000
Multifamily | Substandard [Member]
Loans by risk rating
2022 / 2021	429,000	433,000
2019 / 2018		1,543,000
2018 / 2017	621,000	302,000
Prior	286,000
Total Loans	1,336,000	2,278,000
HELOC
Loans by risk rating
2022 / 2021	225,000	907,000
2021 / 2020	743,000	2,091,000
2020 / 2019	1,547,000	2,131,000
2019 / 2018	1,758,000	822,000
2018 / 2017	750,000	1,679,000
Prior	3,695,000	2,065,000
Revolving Loans	102,354,000	105,969,000
Total Loans	111,072,000	115,664,000
HELOC | Pass [Member]
Loans by risk rating
2022 / 2021	225,000	907,000
2021 / 2020	365,000	2,091,000
2020 / 2019	537,000	2,131,000
2019 / 2018	1,617,000	805,000
2018 / 2017	679,000	1,667,000
Prior	2,822,000	1,869,000
Revolving Loans	102,036,000	104,843,000
Total Loans	108,281,000	114,313,000
HELOC | Special Mention [Member]
Loans by risk rating
2019 / 2018	110,000
Revolving Loans		108,000
Total Loans	110,000	108,000
HELOC | Substandard [Member]
Loans by risk rating
2021 / 2020	378,000
2020 / 2019	1,010,000
2019 / 2018	31,000	17,000
2018 / 2017	71,000	12,000
Prior	873,000	196,000
Revolving Loans	318,000	1,018,000
Total Loans	2,681,000	1,243,000
HELOC - Purchased
Loans by risk rating
Prior	172,000	10,626,000
Revolving Loans	8,894,000
Total Loans	9,066,000	10,626,000
HELOC - Purchased | Pass [Member]
Loans by risk rating
Prior		10,446,000
Revolving Loans	8,894,000
Total Loans	8,894,000	10,446,000
HELOC - Purchased | Substandard [Member]
Loans by risk rating
Prior	172,000	180,000
Total Loans	172,000	180,000
Other
Loans by risk rating
2022 / 2021	1,467,000	8,659,000
2021 / 2020	3,900,000	1,102,000
2020 / 2019	610,000	437,000
2019 / 2018	281,000	261,000
2018 / 2017	88,000	1,414,000
Prior	1,263,000	4,214,000
Revolving Loans	5,546,000	7,206,000
Total Loans	13,155,000	23,293,000
Other | Pass [Member]
Loans by risk rating
2022 / 2021	1,467,000	8,659,000
2021 / 2020	3,900,000	1,099,000
2020 / 2019	608,000	437,000
2019 / 2018	281,000	254,000
2018 / 2017	88,000	1,414,000
Prior	1,263,000	4,214,000
Revolving Loans	5,546,000	7,206,000
Total Loans	13,153,000	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