Loans and Allowance for Loan Losses - Schedule of Loans by Credit Quality Indicators (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Credit Quality Indicators [Abstract]
Loans	$ 550,226	$ 549,364	$ 502,799
Commercial and Industrial [Member]
Credit Quality Indicators [Abstract]
Loans	27,404	26,721	24,413
Commercial Real Estate [Member]
Credit Quality Indicators [Abstract]
Loans	181,898	187,797	176,827
Construction and Land [Member]
Credit Quality Indicators [Abstract]
Loans	65,231	71,409	54,162
Consumer [Member]
Credit Quality Indicators [Abstract]
Loans	5,958	5,562	5,068
Student [Member]
Credit Quality Indicators [Abstract]
Loans	8,151	9,158	10,677
Residential Real Estate [Member]
Credit Quality Indicators [Abstract]
Loans	225,316	205,945	187,104
Home Equity Lines of Credit [Member]
Credit Quality Indicators [Abstract]
Loans	36,268	42,772	$ 44,548
Pass [Member]
Credit Quality Indicators [Abstract]
Loans	530,859	523,005
Pass [Member] | Commercial and Industrial [Member]
Credit Quality Indicators [Abstract]
Loans	26,555	24,285
Pass [Member] | Commercial Real Estate [Member]
Credit Quality Indicators [Abstract]
Loans	175,063	178,525
Pass [Member] | Construction and Land [Member]
Credit Quality Indicators [Abstract]
Loans	62,231	67,767
Pass [Member] | Consumer [Member]
Credit Quality Indicators [Abstract]
Loans	5,955	5,559
Pass [Member] | Student [Member]
Credit Quality Indicators [Abstract]
Loans	8,151	9,158
Pass [Member] | Residential Real Estate [Member]
Credit Quality Indicators [Abstract]
Loans	218,686	198,566
Pass [Member] | Home Equity Lines of Credit [Member]
Credit Quality Indicators [Abstract]
Loans	34,218	39,145
Special Mention [Member]
Credit Quality Indicators [Abstract]
Loans	6,969	10,388
Special Mention [Member] | Commercial and Industrial [Member]
Credit Quality Indicators [Abstract]
Loans	422	1,540
Special Mention [Member] | Commercial Real Estate [Member]
Credit Quality Indicators [Abstract]
Loans	3,487	4,643
Special Mention [Member] | Construction and Land [Member]
Credit Quality Indicators [Abstract]
Loans	2,594	2,282
Special Mention [Member] | Consumer [Member]
Credit Quality Indicators [Abstract]
Loans	3	3
Special Mention [Member] | Student [Member]
Credit Quality Indicators [Abstract]
Loans	0	0
Special Mention [Member] | Residential Real Estate [Member]
Credit Quality Indicators [Abstract]
Loans	336	1,496
Special Mention [Member] | Home Equity Lines of Credit [Member]
Credit Quality Indicators [Abstract]
Loans	127	424
Substandard [Member]
Credit Quality Indicators [Abstract]
Loans	12,398	15,971
Substandard [Member] | Commercial and Industrial [Member]
Credit Quality Indicators [Abstract]
Loans	427	896
Substandard [Member] | Commercial Real Estate [Member]
Credit Quality Indicators [Abstract]
Loans	3,348	4,629
Substandard [Member] | Construction and Land [Member]
Credit Quality Indicators [Abstract]
Loans	406	1,360
Substandard [Member] | Consumer [Member]
Credit Quality Indicators [Abstract]
Loans	0	0
Substandard [Member] | Student [Member]
Credit Quality Indicators [Abstract]
Loans	0	0
Substandard [Member] | Residential Real Estate [Member]
Credit Quality Indicators [Abstract]
Loans	6,294	5,883
Substandard [Member] | Home Equity Lines of Credit [Member]
Credit Quality Indicators [Abstract]
Loans	1,923	3,203
Doubtful [Member]
Credit Quality Indicators [Abstract]
Loans	0	0
Doubtful [Member] | Commercial and Industrial [Member]
Credit Quality Indicators [Abstract]
Loans	0	0
Doubtful [Member] | Commercial Real Estate [Member]
Credit Quality Indicators [Abstract]
Loans	0	0
Doubtful [Member] | Construction and Land [Member]
Credit Quality Indicators [Abstract]
Loans	0	0
Doubtful [Member] | Consumer [Member]
Credit Quality Indicators [Abstract]
Loans	0	0
Doubtful [Member] | Student [Member]
Credit Quality Indicators [Abstract]
Loans	0	0
Doubtful [Member] | Residential Real Estate [Member]
Credit Quality Indicators [Abstract]
Loans	0	0
Doubtful [Member] | Home Equity Lines of Credit [Member]
Credit Quality Indicators [Abstract]
Loans	0	0
Loss [Member]
Credit Quality Indicators [Abstract]
Loans	0	0
Loss [Member] | Commercial and Industrial [Member]
Credit Quality Indicators [Abstract]
Loans	0	0
Loss [Member] | Commercial Real Estate [Member]
Credit Quality Indicators [Abstract]
Loans	0	0
Loss [Member] | Construction and Land [Member]
Credit Quality Indicators [Abstract]
Loans	0	0
Loss [Member] | Consumer [Member]
Credit Quality Indicators [Abstract]
Loans	0	0
Loss [Member] | Student [Member]
Credit Quality Indicators [Abstract]
Loans	0	0
Loss [Member] | Residential Real Estate [Member]
Credit Quality Indicators [Abstract]
Loans	0	0
Loss [Member] | Home Equity Lines of Credit [Member]
Credit Quality Indicators [Abstract]
Loans	$ 0	$ 0