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Loans Past Due Analysis (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	$ 459,572	$ 450,082
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	454	1,123
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	460,026	451,205
Financing Receivable, Recorded Investment, Nonaccrual Status	934	2,972
Loans and Leases Receivable, Gross, Carrying Amount	460,960	454,177	$ 449,972
Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	52,420	59,047
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	10	8
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	52,430	59,055
Financing Receivable, Recorded Investment, Nonaccrual Status	0	31
Loans and Leases Receivable, Gross, Carrying Amount	52,430	59,086	50,101
Construction And Land Development Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	44,832	39,607
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	241	0
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	45,073	39,607
Financing Receivable, Recorded Investment, Nonaccrual Status	36	0
Loans and Leases Receivable, Gross, Carrying Amount	45,109	39,607	47,455
Commercial Real Estate Owner Occupied Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	51,846	44,192
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	51,846	44,192
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	51,846	44,192
Commercial Real Estate Multifamily [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	40,753	52,167
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	40,753	52,167
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	40,753	52,167
Commercial Real Estate Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	156,855	140,486
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	156,855	140,486
Financing Receivable, Recorded Investment, Nonaccrual Status	696	2,188
Loans and Leases Receivable, Gross, Carrying Amount	157,551	142,674
Commercial Real Estate Loans, Total [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	249,454	236,845
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	249,454	236,845
Financing Receivable, Recorded Investment, Nonaccrual Status	696	2,188
Loans and Leases Receivable, Gross, Carrying Amount	250,150	239,033	232,380
Residential Real Estate Consumer Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	56,889	58,195
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	60	746
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	56,949	58,941
Financing Receivable, Recorded Investment, Nonaccrual Status	194	599
Loans and Leases Receivable, Gross, Carrying Amount	57,143	59,540
Residential Real Estate Investment Property Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	46,060	46,871
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	126	312
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	46,186	47,183
Financing Receivable, Recorded Investment, Nonaccrual Status	0	140
Loans and Leases Receivable, Gross, Carrying Amount	46,186	47,323
Residential Real Estate Loans, Total [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	102,949	105,066
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	186	1,058
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	103,135	106,124
Financing Receivable, Recorded Investment, Nonaccrual Status	194	739
Loans and Leases Receivable, Gross, Carrying Amount	103,329	106,863	110,159
Consumer Installment and Revolving Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	9,917	9,517
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	17	57
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	9,934	9,574
Financing Receivable, Recorded Investment, Nonaccrual Status	8	14
Loans and Leases Receivable, Gross, Carrying Amount	$ 9,942	$ 9,588	$ 9,877

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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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