Commitments and Contingencies - General Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Commitments And Contingencies [Line Items]
Federal Reserve Bank Reserve Balance	$ 0	$ 2,674,000
Letter of Credit [Member]
Commitments And Contingencies [Line Items]
Advances from Federal Home Loan Banks, Total	104,854,000
Secure Public Deposits [Member]
Commitments And Contingencies [Line Items]
Advances from Federal Home Loan Banks, Total	100,000,000
Guarantee Financial Performance [Member]
Commitments And Contingencies [Line Items]
Advances from Federal Home Loan Banks, Total	$ 4,854,000
Commercial Real Estate [Member]
Commitments And Contingencies [Line Items]
Concentration Risk, Percentage	80.00%
Real Estate [Member]
Commitments And Contingencies [Line Items]
Concentration Risk, Percentage	60.00%
Residential Real Estate [Member]
Commitments And Contingencies [Line Items]
Concentration Risk, Percentage	29.00%
Farmland [Member]
Commitments And Contingencies [Line Items]
Concentration Risk, Percentage	10.00%