Loans - Schedule of Allowance for Loan Losses and Recorded Investment in Financing Receivables (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	$ 20,237	$ 15,852	$ 20,226	$ 13,835
Charge-offs	(40)	(56)	(95)	(2,124)
Recoveries	10	7	26	92
Provisions (credits)	0	2,550	50	6,550
Allowance for Loan Losses, Ending Balance	20,207	18,353	20,207	18,353
Allowance for Loan Losses, Ending Balance	20,207	18,353	20,207	18,353	$ 20,226
Allowance for loan losses: Ending balance: individually evaluated for impairment	2,395	142	2,395	142	1,382
Allowance for loan losses: Ending balance: collectively evaluated for impairment	17,812	18,211	17,812	18,211	18,844
Financing Receivable, before Allowance for Credit Loss	1,557,776	1,733,563	1,557,776	1,733,563	1,637,784
Loans receivables: Ending balance: individually evaluated for impairment	10,747	8,668	10,747	8,668	10,721
Loans Receivable: Ending balance: collectively evaluated for impairment	1,547,029	1,724,895	1,547,029	1,724,895	1,627,063
Commercial and Industrial
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	4,503	2,646	4,037	2,400
Charge-offs	(14)	(17)	(32)	(2,034)
Recoveries	8	5	16	75
Provisions (credits)	133	22	609	2,215
Allowance for Loan Losses, Ending Balance	4,630	2,656	4,630	2,656
Allowance for Loan Losses, Ending Balance	4,630	2,656	4,630	2,656	4,037
Allowance for loan losses: Ending balance: individually evaluated for impairment	1,873	29	1,873	29	1,224
Allowance for loan losses: Ending balance: collectively evaluated for impairment	2,757	2,627	2,757	2,627	2,813
Financing Receivable, before Allowance for Credit Loss	272,539	350,251	272,539	350,251	320,154
Loans receivables: Ending balance: individually evaluated for impairment	2,635	52	2,635	52	2,031
Loans Receivable: Ending balance: collectively evaluated for impairment	269,904	350,199	269,904	350,199	318,123
Commercial Real Estate
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	9,540	7,511	9,569	6,693
Charge-offs	0	0	0	0
Recoveries	0	0	0	6
Provisions (credits)	587	624	558	1,436
Allowance for Loan Losses, Ending Balance	10,127	8,135	10,127	8,135
Allowance for Loan Losses, Ending Balance	10,127	8,135	10,127	8,135	9,569
Allowance for loan losses: Ending balance: individually evaluated for impairment	522	113	522	113	158
Allowance for loan losses: Ending balance: collectively evaluated for impairment	9,605	8,022	9,605	8,022	9,411
Financing Receivable, before Allowance for Credit Loss	778,310	767,697	778,310	767,697	744,627
Loans receivables: Ending balance: individually evaluated for impairment	8,011	8,471	8,011	8,471	8,589
Loans Receivable: Ending balance: collectively evaluated for impairment	770,299	759,226	770,299	759,226	736,038
Commercial Real Estate Construction
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	543	231	503	298
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	(86)	20	(46)	(47)
Allowance for Loan Losses, Ending Balance	457	251	457	251
Allowance for Loan Losses, Ending Balance	457	251	457	251	503
Allowance for loan losses: Ending balance: individually evaluated for impairment	0	0	0	0	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	457	251	457	251	503
Financing Receivable, before Allowance for Credit Loss	42,659	41,349	42,659	41,349	53,902
Loans receivables: Ending balance: individually evaluated for impairment	0	0	0	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment	42,659	41,349	42,659	41,349	53,902
Residential Mortgage
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	3,366	2,701	3,395	2,555
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	(390)	373	(419)	519
Allowance for Loan Losses, Ending Balance	2,976	3,074	2,976	3,074
Allowance for Loan Losses, Ending Balance	2,976	3,074	2,976	3,074	3,395
Allowance for loan losses: Ending balance: individually evaluated for impairment	0	0	0	0	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	2,976	3,074	2,976	3,074	3,395
Financing Receivable, before Allowance for Credit Loss	357,422	446,145	357,422	446,145	401,340
Loans receivables: Ending balance: individually evaluated for impairment	101	101	101	101	101
Loans Receivable: Ending balance: collectively evaluated for impairment	357,321	446,044	357,321	446,044	401,239
Home Equity Lines of Credit
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	629	605	693	619
Charge-offs	0	0	0	0
Recoveries	0	1	0	1
Provisions (credits)	(56)	55	(120)	41
Allowance for Loan Losses, Ending Balance	573	661	573	661
Allowance for Loan Losses, Ending Balance	573	661	573	661	693
Allowance for loan losses: Ending balance: individually evaluated for impairment	0	0	0	0	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	573	661	573	661	693
Financing Receivable, before Allowance for Credit Loss	94,824	114,402	94,824	114,402	104,610
Loans receivables: Ending balance: individually evaluated for impairment	0	44	0	44	0
Loans Receivable: Ending balance: collectively evaluated for impairment	94,824	114,358	94,824	114,358	104,610
Consumer
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	608	623	648	650
Charge-offs	(26)	(39)	(63)	(90)
Recoveries	2	1	10	10
Provisions (credits)	(123)	76	(134)	91
Allowance for Loan Losses, Ending Balance	461	661	461	661
Allowance for Loan Losses, Ending Balance	461	661	461	661	648
Allowance for loan losses: Ending balance: individually evaluated for impairment	0	0	0	0	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	461	661	461	661	648
Financing Receivable, before Allowance for Credit Loss	12,022	13,719	12,022	13,719	13,151
Loans receivables: Ending balance: individually evaluated for impairment	0	0	0	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment	12,022	13,719	12,022	13,719	13,151
Unallocated
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	1,048	1,535	1,381	620
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	(65)	1,380	(398)	2,295
Allowance for Loan Losses, Ending Balance	983	2,915	983	2,915
Allowance for Loan Losses, Ending Balance	983	2,915	983	2,915	1,381
Allowance for loan losses: Ending balance: individually evaluated for impairment	0	0	0	0	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	983	2,915	983	2,915	1,381
Financing Receivable, before Allowance for Credit Loss	0	0	0	0	0
Loans receivables: Ending balance: individually evaluated for impairment	0	0	0	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment	$ 0	$ 0	$ 0	$ 0	$ 0

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

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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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, before allowance for credit loss, of financing receivable.

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

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