Loans and Allowance for Credit Losses (Allowance for Credit Losses on Loans Receivable with Impairment) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	$ 15,606	$ 19,417
Loans collectively evaluated for impairment	1,408,359	1,229,237
Total loans	1,423,965	1,248,654
Allowance for credit losses allocated to:
Loans individually evaluated for impairment	237	975
Loans collectively evaluated for impairment	12,540	9,532
Loans and Leases Receivable, Allowance, Total	12,777	10,507
Commercial and Residential Real Estate Portfolio Segment [Member] \| Construction Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	333	41
Loans collectively evaluated for impairment	105,707	99,788
Total loans	106,040	99,829
Allowance for credit losses allocated to:
Loans collectively evaluated for impairment	1,558	1,576
Loans and Leases Receivable, Allowance, Total	1,558	1,576
Residential Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	6,216	7,072
Loans collectively evaluated for impairment	435,924	435,434
Total loans	442,140	442,506
Allowance for credit losses allocated to:
Loans individually evaluated for impairment	142	395
Loans collectively evaluated for impairment	3,142	2,106
Loans and Leases Receivable, Allowance, Total	3,284	2,501
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	8,746	12,006
Loans collectively evaluated for impairment	620,895	574,556
Total loans	629,641	586,562
Allowance for credit losses allocated to:
Loans individually evaluated for impairment	81	580
Loans collectively evaluated for impairment	5,018	3,452
Loans and Leases Receivable, Allowance, Total	5,099	4,032
Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	283	298
Loans collectively evaluated for impairment	218,313	101,722
Total loans	218,596	102,020
Allowance for credit losses allocated to:
Loans individually evaluated for impairment	14
Loans collectively evaluated for impairment	2,207	1,929
Loans and Leases Receivable, Allowance, Total	2,221	1,929
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	28
Loans collectively evaluated for impairment	27,520	17,737
Total loans	27,548	17,737
Allowance for credit losses allocated to:
Loans collectively evaluated for impairment	615	469
Loans and Leases Receivable, Allowance, Total	$ 615	$ 469

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- Definition

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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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

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

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

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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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