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Loans Past Due Analysis (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	$ 443,213	$ 459,043
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	953	2,152
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	444,166	461,195
Financing Receivable, Recorded Investment, Nonaccrual Status	116	187
Loans and Leases Receivable, Gross, Carrying Amount	444,282	461,382	$ 473,173
Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	56,443	56,758
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	4	24
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	56,447	56,782
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	56,447	56,782	50,898
Construction And Land Development Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	32,294	32,385
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	8	456
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	32,302	32,841
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	32,302	32,841	44,931
Commercial Real Estate Owner Occupied Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	48,705	48,860
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	48,705	48,860
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	48,705	48,860
Commercial Real Estate Hotel Motel [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	43,249	43,719
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	43,249	43,719
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	43,249	43,719
Commercial Real Estate Multifamily [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	33,190	44,839
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	33,190	44,839
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	33,190	44,839
Commercial Real Estate Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	130,955	132,900
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	130,955	132,900
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	130,955	132,900
Commercial Real Estate Loans, Total [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	256,099	270,318
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	256,099	270,318
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	256,099	270,318	265,149
Residential Real Estate Consumer Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	44,514	47,151
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	922	1,585
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	45,436	48,736
Financing Receivable, Recorded Investment, Nonaccrual Status	112	187
Loans and Leases Receivable, Gross, Carrying Amount	45,548	48,923
Residential Real Estate Investment Property Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	45,462	43,629
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	0	23
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	45,462	43,652
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	45,462	43,652
Residential Real Estate Loans, Total [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	89,976	90,780
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	922	1,608
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	90,898	92,388
Financing Receivable, Recorded Investment, Nonaccrual Status	112	187
Loans and Leases Receivable, Gross, Carrying Amount	91,010	92,575	103,631
Consumer Installment and Revolving Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	8,401	8,802
Financing Receivable, Recorded Investment, 30 To 89 Days Past Due	19	64
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Total Still Accruing	8,420	8,866
Financing Receivable, Recorded Investment, Nonaccrual Status	4	0
Loans and Leases Receivable, Gross, Carrying Amount	$ 8,424	$ 8,866	$ 8,564

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