Loans Allowance for Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Rollfoward of the Allowance for Loan Losses for the Quarterly Report [Roll Forward]
Beginning balance	$ 21,187	$ 20,196	$ 18,586
Charge-offs	(1,989)	(1,735)	(1,532)
Recoveries	715	647	535
Provision	9,319	2,079	2,607
Ending balance	29,232	21,187	20,196
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	41	47
Allowance for loan losses - Loans Collectively Evaluated for Impairment	29,191	21,140
Ending Loan Balance - Individually Evaluated for Impairment	2,703	1,101
Ending Loan Balance - Collectively Evaluated for Impairment	2,592,327	2,385,019
Commercial
Rollfoward of the Allowance for Loan Losses for the Quarterly Report [Roll Forward]
Beginning balance	1,386	1,218	1,873
Charge-offs	(37)	(12)	(153)
Recoveries	3	98	3
Provision	821	82	(505)
Ending balance	2,173	1,386	1,218
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	19	5
Allowance for loan losses - Loans Collectively Evaluated for Impairment	2,154	1,381
Ending Loan Balance - Individually Evaluated for Impairment	47	35
Ending Loan Balance - Collectively Evaluated for Impairment	240,507	150,625
Commercial Real Estate
Rollfoward of the Allowance for Loan Losses for the Quarterly Report [Roll Forward]
Beginning balance	5,830	5,644	4,504
Charge-offs	(5)	(29)	(17)
Recoveries	0	0	12
Provision	4,165	215	1,145
Ending balance	9,990	5,830	5,644
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	0	0
Allowance for loan losses - Loans Collectively Evaluated for Impairment	9,990	5,830
Ending Loan Balance - Individually Evaluated for Impairment	1,128	0
Ending Loan Balance - Collectively Evaluated for Impairment	570,659	510,541
Other Consumer
Rollfoward of the Allowance for Loan Losses for the Quarterly Report [Roll Forward]
Beginning balance	9,408	8,882	7,604
Charge-offs	(1,898)	(1,603)	(1,246)
Recoveries	712	549	520
Provision	3,340	1,580	2,004
Ending balance	11,562	9,408	8,882
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	0	0
Allowance for loan losses - Loans Collectively Evaluated for Impairment	11,562	9,408
Ending Loan Balance - Individually Evaluated for Impairment	111	107
Ending Loan Balance - Collectively Evaluated for Impairment	859,657	811,091
Residential Portfolio Segment
Rollfoward of the Allowance for Loan Losses for the Quarterly Report [Roll Forward]
Beginning balance	4,563	4,452	4,605
Charge-offs	(49)	(91)	(116)
Recoveries	0	0	0
Provision	993	202	(37)
Ending balance	5,507	4,563	$ 4,452
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	22	42
Allowance for loan losses - Loans Collectively Evaluated for Impairment	5,485	4,521
Ending Loan Balance - Individually Evaluated for Impairment	1,417	959
Ending Loan Balance - Collectively Evaluated for Impairment	$ 921,504	$ 912,762

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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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Amount of increase in allowance for credit loss on financing receivable from recovery.

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Amount of writeoff of financing receivable, charged against allowance for credit loss.

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The balance of financing receivables that were collectively evaluated for impairment.

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Amount of credit loss expense (reversal of expense) for financing receivable.

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