Borrowings - (Details) - USD ($) |
Mar. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|
| Federal Home Loan Bank, Advances [Line Items] | ||
| Federal Home Loan Bank Stock | $ 353,000 | $ 484,000 |
| Long-term Federal Home Loan Bank Advances | 0 | 0 |
| Line of Credit Facility, Remaining Borrowing Capacity | 75,500,000 | |
| PPPLF | ||
| Federal Home Loan Bank, Advances [Line Items] | ||
| Current borrowing capacity | 17,100,000 | 41,500,000 |
| Unused borrowing capacity | 142,600,000 | $ 95,200,000 |
| Federal Home Loan Bank Advances [Member] | ||
| Federal Home Loan Bank, Advances [Line Items] | ||
| Line of Credit Facility, Remaining Borrowing Capacity | 32,700,000 | |
| Revolving Credit Facility [Member] | ||
| Federal Home Loan Bank, Advances [Line Items] | ||
| Line of Credit Facility, Remaining Borrowing Capacity | 10,000,000 | |
| Secured Debt [Member] | ||
| Federal Home Loan Bank, Advances [Line Items] | ||
| Line of Credit Facility, Remaining Borrowing Capacity | 7,800,000 | |
| Line of Credit [Member] | ||
| Federal Home Loan Bank, Advances [Line Items] | ||
| Line of Credit Facility, Remaining Borrowing Capacity | $ 25,000,000 |