Commitments and Contingencies (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Fair Value, Off-balance Sheet Risks [Abstract]
Commitments to extend credit	$ 149,023	$ 140,225
Home Equity Lines of Credit [Member]
Fair Value, Off-balance Sheet Risks [Abstract]
Commitments to extend credit	67,876	62,267
Commercial Real Estate, Construction and Development Loans Committed but not Funded [Member]
Fair Value, Off-balance Sheet Risks [Abstract]
Commitments to extend credit	16,198	15,637
Other Lines of Credit (Principally Commercial) [Member]
Fair Value, Off-balance Sheet Risks [Abstract]
Commitments to extend credit	64,949	62,321
Letters of Credit [Member]
Fair Value, Off-balance Sheet Risks [Abstract]
Commitments to extend credit	$ 5,653	$ 7,724