Loans - Credit Quality Indicators (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
2021	$ 464,216
2020	848,209
2019	378,694
2018	270,311
2017	183,288
Prior	359,070
Revolving Loans Amortized Cost Basis	140,294
Revolving Loan Converted to Term	0
Total	2,644,082	$ 2,595,030	$ 2,561,915
Total Loans	2,617,072	2,565,798	2,535,615
Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	98,776
2020	74,978
2019	16,439
2018	14,316
2017	9,106
Prior	15,045
Revolving Loans Amortized Cost Basis	14,130
Revolving Loan Converted to Term	0
Total	242,790
Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	75,499
2020	323,522
2019	55,421
2018	40,361
2017	24,282
Prior	76,988
Revolving Loans Amortized Cost Basis	2,169
Revolving Loan Converted to Term	0
Total	598,242
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	219,810
2020	293,010
2019	199,075
2018	115,160
2017	46,081
Prior	18,964
Revolving Loans Amortized Cost Basis	449
Revolving Loan Converted to Term	0
Total	892,549	859,768	828,493
Mortgage loans in process of foreclosure, amount	1,300
Residential
Financing Receivable, Credit Quality Indicator [Line Items]
2021	70,131
2020	156,699
2019	107,759
2018	100,474
2017	103,819
Prior	248,073
Revolving Loans Amortized Cost Basis	123,546
Revolving Loan Converted to Term	0
Total	910,501	922,921	923,719
Satisfactory
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans		754,960	766,364
Satisfactory | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	98,633
2020	64,854
2019	15,714
2018	14,316
2017	9,067
Prior	11,486
Revolving Loans Amortized Cost Basis	14,083
Revolving Loan Converted to Term	0
Total	228,153
Total Loans		229,351	268,315
Satisfactory | Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	68,576
2020	297,152
2019	49,458
2018	40,229
2017	24,142
Prior	66,277
Revolving Loans Amortized Cost Basis	2,145
Revolving Loan Converted to Term	0
Total	547,979
Total Loans		525,609	498,049
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans		17,787	7,390
Special Mention | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	666
2019	58
2018	0
2017	0
Prior	50
Revolving Loans Amortized Cost Basis	0
Revolving Loan Converted to Term	0
Total	774
Total Loans		1,574	1,560
Special Mention | Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	20,380
2019	1,982
2018	0
2017	140
Prior	1,127
Revolving Loans Amortized Cost Basis	0
Revolving Loan Converted to Term	0
Total	23,629
Total Loans		16,213	5,830
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans		39,594	35,949
Substandard | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	143
2020	9,458
2019	667
2018	0
2017	39
Prior	3,509
Revolving Loans Amortized Cost Basis	47
Revolving Loan Converted to Term	0
Total	13,863
Total Loans		9,629	6,796
Substandard | Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	6,923
2020	5,990
2019	3,981
2018	132
2017	0
Prior	9,584
Revolving Loans Amortized Cost Basis	24
Revolving Loan Converted to Term	0
Total	26,634
Total Loans		29,965	29,153
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans		0	0
Doubtful | Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	0
Revolving Loans Amortized Cost Basis	0
Revolving Loan Converted to Term	0
Total	0
Total Loans		0	0
Doubtful | Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	0
Revolving Loans Amortized Cost Basis	0
Revolving Loan Converted to Term	0
Total	0
Total Loans		0	0
Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans		1,778,165	1,747,697
Performing | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	219,782
2020	292,852
2019	198,930
2018	115,042
2017	45,994
Prior	18,941
Revolving Loans Amortized Cost Basis	449
Revolving Loan Converted to Term	0
Total	891,990
Total Loans		858,298	826,684
Performing | Residential
Financing Receivable, Credit Quality Indicator [Line Items]
2021	70,131
2020	156,496
2019	107,323
2018	100,447
2017	103,671
Prior	246,277
Revolving Loans Amortized Cost Basis	123,514
Revolving Loan Converted to Term	0
Total	907,859
Total Loans		919,867	921,013
Nonperforming
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans		4,524	4,515
Nonperforming | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	28
2020	158
2019	145
2018	118
2017	87
Prior	23
Revolving Loans Amortized Cost Basis	0
Revolving Loan Converted to Term	0
Total	559
Total Loans		1,470	1,809
Nonperforming | Residential
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	203
2019	436
2018	27
2017	148
Prior	1,796
Revolving Loans Amortized Cost Basis	32
Revolving Loan Converted to Term	0
Total	$ 2,642
Total Loans		$ 3,054	$ 2,706