Troubled Debt Restructuring (Details) $ in Thousands	Dec. 31, 2020 USD ($)
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	$ 0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	319
Impaired Financing Receivable, Trouble Debt Structuring, Total	319
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	0
Commercial Real Estate Other Loans [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	212
Impaired Financing Receivable, Trouble Debt Structuring, Total	212
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	0
Commercial Real Estate Loans, Total [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	212
Impaired Financing Receivable, Trouble Debt Structuring, Total	212
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	0
Residential Real Estate Investment Property Loans [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	107
Impaired Financing Receivable, Trouble Debt Structuring, Total	107
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	0
Residential Real Estate Loans, Total [Member]
Impaired Financing Receivable And Troubled Debt Restructing [Line Items]
Impaired Financing Receivable, Troubled Debt Restructuring, Still Accruing	0
Impaired Financing Receivable, Troubled Debt Restructuring, Nonaccrual	107
Impaired Financing Receivable, Trouble Debt Structuring, Total	107
Impaired Financing Receivable, Troubled Debt Restructuring, Allowance for Credit Losses	$ 0