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Loan Credit Quality Analysis (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	$ 442,301	$ 440,852
Financing Receivable, Recorded Investment, Special Mention	17,218	18,190
Financing Receivable Recorded Investment, Substandard Accruing	2,820	2,912
Financing Receivable, Recorded Investment, Nonaccrual Status	783	534
Loans and Leases Receivable, Gross, Carrying Amount	463,122	462,488	$ 444,282
Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	86,376	79,984
Financing Receivable, Recorded Investment, Special Mention	2,012	2,383
Financing Receivable Recorded Investment, Substandard Accruing	299	218
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	88,687	82,585	56,447
Construction And Land Development Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	30,085	33,260
Financing Receivable, Recorded Investment, Special Mention	0	0
Financing Receivable Recorded Investment, Substandard Accruing	247	254
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	30,332	33,514	32,302
Commercial Real Estate Owner Occupied Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	50,091	51,265
Financing Receivable, Recorded Investment, Special Mention	2,029	2,627
Financing Receivable Recorded Investment, Substandard Accruing	137	141
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	52,257	54,033
Commercial Real Estate Hotel Motel [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	40,452	35,084
Financing Receivable, Recorded Investment, Special Mention	7,816	7,816
Financing Receivable Recorded Investment, Substandard Accruing	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	48,268	42,900
Commercial Real Estate Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	34,406	36,673
Financing Receivable, Recorded Investment, Special Mention	3,530	3,530
Financing Receivable Recorded Investment, Substandard Accruing	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	37,936	40,203
Commercial Real Estate Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	114,809	116,498
Financing Receivable, Recorded Investment, Special Mention	1,219	1,243
Financing Receivable Recorded Investment, Substandard Accruing	36	47
Financing Receivable, Recorded Investment, Nonaccrual Status	206	212
Loans and Leases Receivable, Gross, Carrying Amount	116,270	118,000
Commercial Real Estate Loans, Total [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	239,758	239,520
Financing Receivable, Recorded Investment, Special Mention	14,594	15,216
Financing Receivable Recorded Investment, Substandard Accruing	173	188
Financing Receivable, Recorded Investment, Nonaccrual Status	206	212
Loans and Leases Receivable, Gross, Carrying Amount	254,731	255,136	256,099
Residential Real Estate Consumer Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	31,108	32,518
Financing Receivable, Recorded Investment, Special Mention	320	397
Financing Receivable Recorded Investment, Substandard Accruing	1,749	1,897
Financing Receivable, Recorded Investment, Nonaccrual Status	474	215
Loans and Leases Receivable, Gross, Carrying Amount	33,651	35,027
Residential Real Estate Investment Property Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	48,465	48,501
Financing Receivable, Recorded Investment, Special Mention	286	187
Financing Receivable Recorded Investment, Substandard Accruing	343	332
Financing Receivable, Recorded Investment, Nonaccrual Status	103	107
Loans and Leases Receivable, Gross, Carrying Amount	49,197	49,127
Residential Real Estate Loans, Total [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	79,573	81,019
Financing Receivable, Recorded Investment, Special Mention	606	584
Financing Receivable Recorded Investment, Substandard Accruing	2,092	2,229
Financing Receivable, Recorded Investment, Nonaccrual Status	577	322
Loans and Leases Receivable, Gross, Carrying Amount	82,848	84,154	91,010
Consumer Installment and Revolving Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Pass	6,509	7,069
Financing Receivable, Recorded Investment, Special Mention	6	7
Financing Receivable Recorded Investment, Substandard Accruing	9	23
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Gross, Carrying Amount	$ 6,524	$ 7,099	$ 8,424

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