Loans and Allowance for Loan Losses (Allowance for Loan Losses by Commercial and Consumer Portfolio Segments) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	$ 31,602	$ 16,144	$ 16,642	$ 15,762
Provision for loan losses	11,100	650	27,300	1,250
Loan charge-offs	(1,064)	(963)	(2,413)	(1,240)
Loan recoveries	581	17	690	76
Net loan charge-offs	(483)	(946)	(1,723)	(1,164)
Balance, end of period	$ 42,219	$ 15,848	$ 42,219	$ 15,848
Net charge-offs to average loans (annualized)	0.09%	0.21%	0.11%	0.09%
Allowance for loan losses to gross loans	2.03%	0.86%
Allowance for loan losses to nonperforming loans	482.43%	225.51%
Commercial Loan [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period			$ 11,372
Balance, end of period	$ 28,095		28,095
Commercial Loan [Member] | Owner Occupied Re [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	5,800	$ 2,808	2,835	$ 2,726
Provision for loan losses	2,105	(75)	5,070	117
Loan charge-offs				(110)
Loan recoveries
Net loan charge-offs				(110)
Balance, end of period	7,905	2,733	7,905	2,733
Commercial Loan [Member] | Non Owner Occupied Re [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	8,791	4,016	4,304	3,811
Provision for loan losses	2,461	237	8,081	454
Loan charge-offs	(375)	(225)	(1,508)	(239)
Loan recoveries	554		554	2
Net loan charge-offs	179	(225)	(954)	(237)
Balance, end of period	11,431	4,028	11,431	4,028
Commercial Loan [Member] | Business Loan [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	5,841	3,623	3,692	3,616
Provision for loan losses	2,274	588	4,562	577
Loan charge-offs	(564)	(709)	(735)	(709)
Loan recoveries	14	8	46	26
Net loan charge-offs	(550)	(701)	(689)	(683)
Balance, end of period	7,565	3,510	7,565	3,510
Commercial Loan [Member] | Construction Loans [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	977	569	541	615
Provision for loan losses	217	(63)	653	(109)
Loan charge-offs
Loan recoveries
Net loan charge-offs
Balance, end of period	1,194	506	1,194	506
Consumer Loan [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period			5,270
Balance, end of period	14,124		14,124
Consumer Loan [Member] | Other Consumer [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	399	297	277	290
Provision for loan losses	170	34	337	85
Loan charge-offs	(25)	(29)	(70)	(82)
Loan recoveries	11	1	11	10
Net loan charge-offs	(14)	(28)	(59)	(72)
Balance, end of period	555	303	555	303
Consumer Loan [Member] | Construction Loans [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	615	318	268	275
Provision for loan losses	87	8	434	51
Loan charge-offs
Loan recoveries
Net loan charge-offs
Balance, end of period	702	326	702	326
Consumer Loan [Member] | Real Estate Loan [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	6,538	3,104	3,278	3,081
Provision for loan losses	2,936	(93)	6,187	(99)
Loan charge-offs
Loan recoveries	2	7	11	36
Net loan charge-offs	2	7	11	36
Balance, end of period	9,476	3,018	9,476	3,018
Consumer Loan [Member] | Home Equity Loan [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	2,641	1,409	1,447	1,348
Provision for loan losses	850	14	1,976	174
Loan charge-offs	(100)		(100)	(100)
Loan recoveries		1	68	2
Net loan charge-offs	(100)	1	(32)	(98)
Balance, end of period	$ 3,391	$ 1,424	$ 3,391	$ 1,424