Loans and Allowance for Loan Losses - Schedule of Portfolio Quality Indicators (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	$ 450,034	$ 443,491
Commercial loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	99,728	103,277
Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	254,577	246,167
Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	88,114	85,789
Installment loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	7,615	8,258
Pass Grade
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	444,231	436,976
Pass Grade | Commercial loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	99,721	103,181
Pass Grade | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	248,895	239,862
Pass Grade | Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	88,000	85,675
Pass Grade | Installment loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	7,615	8,258
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	2,892	3,437
Special Mention | Commercial loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	7	15
Special Mention | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	2,885	3,422
Special Mention | Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	0	0
Special Mention | Installment loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	0	0
Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	2,911	3,078
Substandard | Commercial loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	0	81
Substandard | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	2,797	2,883
Substandard | Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	114	114
Substandard | Installment loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	0	0
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	0	0
Doubtful | Commercial loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	0	0
Doubtful | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	0	0
Doubtful | Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	0	0
Doubtful | Installment loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans Receivable	$ 0	$ 0