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, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	$ 15,852	$ 14,020	$ 13,835	$ 13,964
Charge-offs	(56)	(134)	(2,124)	(266)
Recoveries	7	46	92	84
Provisions	2,550	125	6,550	275
Allowance for Loan Losses, Ending Balance	18,353	14,057	18,353	14,057
Allowance for Loan Losses, Ending Balance	18,353	14,057	13,835	13,964	$ 18,353	$ 13,835	$ 14,057
Allowance for loan losses: Ending balance: individually evaluated for impairment					142	42	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment					18,211	13,793	14,057
Total Loans Receivable					1,733,563	1,272,601	1,279,264
Loans receivables: Ending balance: individually evaluated for impairment					8,668	7,702	6,397
Loans Receivable: Ending balance: collectively evaluated for impairment					1,724,895	1,264,899	1,272,867
Commercial and Industrial
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	2,646	2,620	2,400	2,597
Charge-offs	(17)	(71)	(2,034)	(102)
Recoveries	5	7	75	21
Provisions	22	(94)	2,215	(54)
Allowance for Loan Losses, Ending Balance	2,656	2,462	2,656	2,462
Allowance for Loan Losses, Ending Balance	2,656	2,462	2,656	2,462	2,656	2,400	2,462
Allowance for loan losses: Ending balance: individually evaluated for impairment					29	42	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment					2,627	2,358	2,462
Total Loans Receivable					350,251	149,315	161,379
Loans receivables: Ending balance: individually evaluated for impairment					52	65	0
Loans Receivable: Ending balance: collectively evaluated for impairment					350,199	149,250	161,379
Commercial Real Estate
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	7,511	6,278	6,693	6,208
Charge-offs	0	0	0	0
Recoveries	0	0	6	0
Provisions	624	134	1,436	204
Allowance for Loan Losses, Ending Balance	8,135	6,412	8,135	6,412
Allowance for Loan Losses, Ending Balance	8,135	6,412	8,135	6,412	8,135	6,693	6,412
Allowance for loan losses: Ending balance: individually evaluated for impairment					113	0	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment					8,022	6,693	6,412
Total Loans Receivable					767,697	567,048	552,731
Loans receivables: Ending balance: individually evaluated for impairment					8,471	7,383	5,747
Loans Receivable: Ending balance: collectively evaluated for impairment					759,226	559,665	546,984
Commercial Real Estate Construction
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	231	241	298	203
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions	20	21	(47)	59
Allowance for Loan Losses, Ending Balance	251	262	251	262
Allowance for Loan Losses, Ending Balance	251	262	298	262	251	298	262
Allowance for loan losses: Ending balance: individually evaluated for impairment					0	0	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment					251	298	262
Total Loans Receivable					41,349	26,416	20,428
Loans receivables: Ending balance: individually evaluated for impairment					0	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment					41,349	26,416	20,428
Residential Mortgage
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	2,701	2,737	2,555	2,814
Charge-offs	0	0	0	(6)
Recoveries	0	0	0	1
Provisions	373	9	519	(63)
Allowance for Loan Losses, Ending Balance	3,074	2,746	3,074	2,746
Allowance for Loan Losses, Ending Balance	3,074	2,746	2,555	2,746	3,074	2,555	2,746
Allowance for loan losses: Ending balance: individually evaluated for impairment					0	0	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment					3,074	2,555	2,746
Total Loans Receivable					446,145	408,337	419,940
Loans receivables: Ending balance: individually evaluated for impairment					101	171	650
Loans Receivable: Ending balance: collectively evaluated for impairment					446,044	408,166	419,290
Home Equity Lines of Credit
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	605	616	619	611
Charge-offs	0	0	0	(51)
Recoveries	1	8	1	8
Provisions	55	1	41	57
Allowance for Loan Losses, Ending Balance	661	625	661	625
Allowance for Loan Losses, Ending Balance	661	625	661	625	661	619	625
Allowance for loan losses: Ending balance: individually evaluated for impairment					0	0	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment					661	619	625
Total Loans Receivable					114,402	108,047	110,585
Loans receivables: Ending balance: individually evaluated for impairment					44	83	0
Loans Receivable: Ending balance: collectively evaluated for impairment					114,358	107,964	110,585
Consumer
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	623	697	650	692
Charge-offs	(39)	(63)	(90)	(107)
Recoveries	1	31	10	54
Provisions	76	23	91	49
Allowance for Loan Losses, Ending Balance	661	688	661	688
Allowance for Loan Losses, Ending Balance	661	688	650	688	661	650	688
Allowance for loan losses: Ending balance: individually evaluated for impairment					0	0	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment					661	650	688
Total Loans Receivable					13,719	13,438	14,201
Loans receivables: Ending balance: individually evaluated for impairment					0	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment					13,719	13,438	14,201
Unallocated
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	1,535	831	620	839
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions	1,380	31	2,295	23
Allowance for Loan Losses, Ending Balance	2,915	862	2,915	862
Allowance for Loan Losses, Ending Balance	$ 2,915	$ 862	$ 620	$ 839	2,915	620	862
Allowance for loan losses: Ending balance: individually evaluated for impairment					0	0	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment					2,915	620	862
Total Loans Receivable					0	0	0
Loans receivables: Ending balance: individually evaluated for impairment					0	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment					$ 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 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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- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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

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