Commitments and Contingencies - Narrative (Details)	3 Months Ended
	Mar. 31, 2020 USD ($) action	Dec. 31, 2019 USD ($)
Loss Contingencies [Line Items]
Amount of loans sold to FHLB	$ 60,700,000
Federal Home Loan Bank, First Loss Account Established	938,000
Bank recourse obligation	$ 811,000
Bank recourse obligation, percentage of loans outstanding	1.30%
Reserve as a percentage of outstanding CE	10.00%
Reserve for loans sold	$ 272,000
Outstanding Delinquencies On Loans Sold to Federal Home Loan Bank	$ 482,000	$ 0
Severance agreement, period of base compensation disbursed as lump sum payment (in months)	24 months
Change of control agreement, notice required to cancel agreement (in months)	24 months
Change of control agreement, executive payment, period following change in control (in months)	12 months
Pending material legal actions | action	0
Maximum
Loss Contingencies [Line Items]
Change of control agreement, executive payment, period prior to change in control (in months)	6 months
Change of control agreement, period of base compensation disbursed as lump sum payment (in months)	12 months
Commitments to Extend Credit
Loss Contingencies [Line Items]
Reserve for estimated losses	$ 312,000	293,000
Guarantee on loans sold
Loss Contingencies [Line Items]
Reserve for estimated losses	$ 1,300,000	$ 1,200,000