Loans and Allowance for Loan Losses - Additional Information (Details)	12 Months Ended
	Dec. 31, 2020 USD ($) Loan Property	Dec. 31, 2019 USD ($) Loan Property
Troubled Debt Restructurings [Abstract]
Number of TDR loans in loan portfolio	5	5
TDR loans in the portfolio | $	$ 8,400,000	$ 2,500,000
Number of TDR loans current and performing	5	5
Number of Contracts		0
Number of TDRs with payment defaults occurring within 12 months of modification	0	0
Number of loans not considered TDRs under current guidance	6
Residential Real Estate [Member]
Troubled Debt Restructurings [Abstract]
Number of foreclosed properties in possession or in process of foreclosure | Property	0	0
90 Days Past Due [Member]
Troubled Debt Restructurings [Abstract]
Number of TDR loans in loan portfolio	1
TDR loans in the portfolio | $	$ 2,600,000
Number of deferments loans	5
Deferments payment granted | $	$ 518,000
Small Business Administration (SBA) CARES Act, Paycheck Protection Program [Member]
Financing Receivable Impaired [Line Items]
Financing receivable number of loans authorized	549
Financing receivable amount of loans authorized | $	$ 53,100,000
Financing receivable number of loans forgiveness	223
Financing receivable aggregate principal balance of loans forgiveness | $	$ 22,600,000