Loans (Schedule of Accounts, Notes, Loans and Financing Receivable) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2019	Dec. 31, 2018	Sep. 30, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 1,415,417	$ 1,346,922	$ 1,307,737
Less:
Net deferred costs (fees)	1,691	1,183
Total loans, net of deferred costs	1,417,108	1,348,105
Less: allowance for loan losses	(11,252)	(10,976)
Net loans	$ 1,405,856	$ 1,337,129
Percentage status of loan in portfolio	100.00%	100.00%
Deferred loan fees and premiums, percentage	0.12%	0.09%
Loans and leases receivable, allowance percentage	(0.79%)	(0.81%)
PCI Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 2,803	$ 3,220	3,511
Less:
Total loans, net of deferred costs	2,803	3,220
Net loans	$ 2,803	3,220
Percentage status of loan in portfolio	0.15%
All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 1,412,614	1,343,702
Less:
Net deferred costs (fees)	1,691	1,183
Total loans, net of deferred costs	1,414,305	1,344,885
Less: allowance for loan losses	(11,252)	(10,976)
Net loans	1,403,053	1,333,909
Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 932,344	$ 878,016	847,945
Less:
Percentage status of loan in portfolio	65.86%	65.18%
Commercial Real Estate Portfolio Segment [Member] \| PCI Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 1,732	$ 1,785	1,463
Commercial Real Estate Portfolio Segment [Member] \| All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	930,612	876,231
Residential First Mortgages Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	163,727	156,709	156,565
Less:
Less: allowance for loan losses	$ (11,300)	$ (11,000)
Percentage status of loan in portfolio	11.57%	11.63%
Residential First Mortgages Portfolio Segment [Member] \| PCI Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 451	$ 466	468
Residential First Mortgages Portfolio Segment [Member] \| All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	163,276	156,243
Residential Rentals Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 121,170	$ 124,298	125,383
Less:
Percentage status of loan in portfolio	8.56%	9.23%
Residential Rentals Portfolio Segment [Member] \| PCI Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 317	$ 897	1,261
Residential Rentals Portfolio Segment [Member] \| All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	120,853	123,401
Construction And Land Development Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 30,774	$ 29,705	28,788
Less:
Percentage status of loan in portfolio	2.17%	2.21%
Construction And Land Development Portfolio Segment [Member] \| PCI Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans			0
Construction And Land Development Portfolio Segment [Member] \| All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 30,774	$ 29,705
Home Equity And Second Mortgages Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 36,182	$ 35,561
Less:
Percentage status of loan in portfolio	2.56%	2.64%
Home Equity And Second Mortgages Portfolio Segment [Member] \| PCI Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 303	$ 72
Home Equity And Second Mortgages Portfolio Segment [Member] \| All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	35,879	35,489
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 69,179	$ 71,680	62,083
Less:
Percentage status of loan in portfolio	4.89%	5.32%
Commercial Portfolio Segment [Member] \| All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 69,179	$ 71,680
Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 937	$ 751	730
Less:
Percentage status of loan in portfolio	0.07%	0.06%
Consumer Portfolio Segment [Member] \| All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 937	$ 751
Commercial Equipment Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 61,104	$ 50,202	$ 49,883
Less:
Percentage status of loan in portfolio	4.32%	3.73%
Commercial Equipment Portfolio Segment [Member] \| All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 61,104	$ 50,202

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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.

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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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