Loans and Allowance for Loan Losses - Schedule of Loans by Credit Quality Indicators (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Credit Quality Indicators [Abstract]
Loans	$ 616,749	$ 550,226	$ 549,364
Commercial and Industrial [Member]
Credit Quality Indicators [Abstract]
Loans	68,390	27,404	26,721
Commercial Real Estate [Member]
Credit Quality Indicators [Abstract]
Loans	200,690	181,898	187,797
Construction and Land [Member]
Credit Quality Indicators [Abstract]
Loans	73,966	65,231	71,409
Consumer [Member]
Credit Quality Indicators [Abstract]
Loans	6,355	5,958	5,562
Student [Member]
Credit Quality Indicators [Abstract]
Loans	6,971	8,151	9,158
Residential Real Estate [Member]
Credit Quality Indicators [Abstract]
Loans	230,885	225,316	205,945
Home Equity Lines of Credit [Member]
Credit Quality Indicators [Abstract]
Loans	29,492	36,268	$ 42,772
Pass [Member]
Credit Quality Indicators [Abstract]
Loans	593,439	530,859
Pass [Member] | Commercial and Industrial [Member]
Credit Quality Indicators [Abstract]
Loans	67,499	26,555
Pass [Member] | Commercial Real Estate [Member]
Credit Quality Indicators [Abstract]
Loans	189,656	175,063
Pass [Member] | Construction and Land [Member]
Credit Quality Indicators [Abstract]
Loans	71,630	62,231
Pass [Member] | Consumer [Member]
Credit Quality Indicators [Abstract]
Loans	6,352	5,955
Pass [Member] | Student [Member]
Credit Quality Indicators [Abstract]
Loans	6,971	8,151
Pass [Member] | Residential Real Estate [Member]
Credit Quality Indicators [Abstract]
Loans	223,681	218,686
Pass [Member] | Home Equity Lines of Credit [Member]
Credit Quality Indicators [Abstract]
Loans	27,650	34,218
Special Mention [Member]
Credit Quality Indicators [Abstract]
Loans	12,216	6,969
Special Mention [Member] | Commercial and Industrial [Member]
Credit Quality Indicators [Abstract]
Loans	348	422
Special Mention [Member] | Commercial Real Estate [Member]
Credit Quality Indicators [Abstract]
Loans	9,273	3,487
Special Mention [Member] | Construction and Land [Member]
Credit Quality Indicators [Abstract]
Loans	2,273	2,594
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	319	336
Special Mention [Member] | Home Equity Lines of Credit [Member]
Credit Quality Indicators [Abstract]
Loans	0	127
Substandard [Member]
Credit Quality Indicators [Abstract]
Loans	11,094	12,398
Substandard [Member] | Commercial and Industrial [Member]
Credit Quality Indicators [Abstract]
Loans	543	427
Substandard [Member] | Commercial Real Estate [Member]
Credit Quality Indicators [Abstract]
Loans	1,761	3,348
Substandard [Member] | Construction and Land [Member]
Credit Quality Indicators [Abstract]
Loans	63	406
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	6,885	6,294
Substandard [Member] | Home Equity Lines of Credit [Member]
Credit Quality Indicators [Abstract]
Loans	1,842	1,923
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