Commitments and Contingencies (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Fair Value, Off-balance Sheet Risks [Abstract]
Commitments to extend credit	$ 157,056	$ 147,237
Home Equity Lines of Credit [Member]
Fair Value, Off-balance Sheet Risks [Abstract]
Commitments to extend credit	63,095	61,014
Commercial Real Estate, Construction and Development Loans Committed but not Funded [Member]
Fair Value, Off-balance Sheet Risks [Abstract]
Commitments to extend credit	18,982	12,165
Other Lines of Credit (Principally Commercial) [Member]
Fair Value, Off-balance Sheet Risks [Abstract]
Commitments to extend credit	74,979	74,058
Letters of Credit [Member]
Fair Value, Off-balance Sheet Risks [Abstract]
Commitments to extend credit	$ 7,756	$ 8,230