Loans and Related Allowance for Loan Losses (Classes of the Loan Portfolio Summarized by the Aggregate Risk Rating) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 422,661	$ 400,590
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	372,347	378,875
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	40,626	10,362
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	9,602	11,209
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	86	144
Commercial, Financial and Agricultural [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	73,057	51,785
Commercial, Financial and Agricultural [Member] | Commercial Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	71,983	46,725
Commercial, Financial and Agricultural [Member] | Commercial Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	495	4,080
Commercial, Financial and Agricultural [Member] | Commercial Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	579	980
Commercial, Financial and Agricultural [Member] | Commercial Portfolio Segment [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Commercial Loan [Member] | Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	122,698	126,613
Commercial Loan [Member] | Real Estate Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	99,828	113,851
Commercial Loan [Member] | Real Estate Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	15,198	5,668
Commercial Loan [Member] | Real Estate Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	7,631	7,046
Commercial Loan [Member] | Real Estate Portfolio Segment [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	41	48
Construction Loan [Member] | Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	61,051	46,459
Construction Loan [Member] | Real Estate Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	36,332	44,954
Construction Loan [Member] | Real Estate Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	24,644	287
Construction Loan [Member] | Real Estate Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	75	1,218
Construction Loan [Member] | Real Estate Portfolio Segment [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Mortgage Loan [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	141,438	150,538
Mortgage Loan [Member] | Consumer Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	139,787	148,164
Mortgage Loan [Member] | Consumer Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	289	327
Mortgage Loan [Member] | Consumer Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,317	1,951
Mortgage Loan [Member] | Consumer Portfolio Segment [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	45	96
Obligations of State and Political Subdivisions [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	18,550	16,377
Obligations of State and Political Subdivisions [Member] | Commercial Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	18,550	16,377
Obligations of State and Political Subdivisions [Member] | Commercial Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0
Obligations of State and Political Subdivisions [Member] | Commercial Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Obligations of State and Political Subdivisions [Member] | Commercial Portfolio Segment [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Personal Loan [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	5,867	8,818
Personal Loan [Member] | Consumer Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	5,867	8,804
Personal Loan [Member] | Consumer Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0
Personal Loan [Member] | Consumer Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	14
Personal Loan [Member] | Consumer Portfolio Segment [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 0	$ 0