Loans and Allowance for Loan Losses (Allowance for Loan Losses by Commercial and Consumer Portfolio Segments) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	$ 22,462	$ 16,051	$ 16,642	$ 15,762
Provision for loan losses	10,200	300	16,200	600
Loan charge-offs	(1,082)	(237)	(1,348)	(277)
Loan recoveries	22	30	108	59
Net loan charge-offs	(1,060)	(207)	(1,240)	(218)
Balance, end of period	$ 31,602	$ 16,144	$ 31,602	$ 16,144
Net charge-offs to average loans (annualized)	0.24%	0.05%	0.12%	0.03%
Allowance for loan losses to gross loans	1.55%	0.89%
Allowance for loan losses to nonperforming loans	350.74%	277.92%
Commercial Loan [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period			$ 11,372
Balance, end of period	$ 21,409		21,409
Commercial Loan [Member] | Owner Occupied Re [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	4,005	$ 2,783	2,835	$ 2,726
Provision for loan losses	1,795	135	2,965	192
Loan charge-offs		(110)		(110)
Loan recoveries
Net loan charge-offs		(110)		(110)
Balance, end of period	5,800	2,808	5,800	2,808
Commercial Loan [Member] | Non Owner Occupied Re [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	5,794	3,886	4,304	3,811
Provision for loan losses	3,909	143	5,620	217
Loan charge-offs	(912)	(13)	(1,133)	(14)
Loan recoveries				2
Net loan charge-offs	(912)	(13)	(1,133)	(12)
Balance, end of period	8,791	4,016	8,791	4,016
Commercial Loan [Member] | Business Loan [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	4,714	3,796	3,692	3,616
Provision for loan losses	1,282	(181)	2,288	(10)
Loan charge-offs	(170)		(170)
Loan recoveries	15	8	31	17
Net loan charge-offs	(155)	8	(139)	17
Balance, end of period	5,841	3,623	5,841	3,623
Commercial Loan [Member] | Construction Loans [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	694	572	541	615
Provision for loan losses	283	(3)	436	(46)
Loan charge-offs
Loan recoveries
Net loan charge-offs
Balance, end of period	977	569	977	569
Consumer Loan [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period			5,270
Balance, end of period	10,193		10,193
Consumer Loan [Member] | Other Consumer [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	338	281	277	290
Provision for loan losses	61	23	167	50
Loan charge-offs		(14)	(45)	(53)
Loan recoveries		7		10
Net loan charge-offs		(7)	(45)	(43)
Balance, end of period	399	297	399	297
Consumer Loan [Member] | Construction Loans [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	415	282	268	275
Provision for loan losses	200	36	347	43
Loan charge-offs
Loan recoveries
Net loan charge-offs
Balance, end of period	615	318	615	318
Consumer Loan [Member] | Real Estate Loan [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	4,606	3,041	3,278	3,081
Provision for loan losses	1,925	49	3,251	(6)
Loan charge-offs
Loan recoveries	7	14	9	29
Net loan charge-offs	7	14	9	29
Balance, end of period	6,538	3,104	6,538	3,104
Consumer Loan [Member] | Home Equity Loan [Member]
Financing Receivable, Allowance For Credit Losses [Roll Forward]
Balance, beginning of period	1,896	1,410	1,447	1,348
Provision for loan losses	745	98	1,126	160
Loan charge-offs		(100)		(100)
Loan recoveries		1	68	1
Net loan charge-offs		(99)	68	(99)
Balance, end of period	$ 2,641	$ 1,409	$ 2,641	$ 1,409