Borrowings (Details) - USD ($)
Sep. 30, 2020
Dec. 31, 2019
Federal Home Loan Bank, Advances [Line Items]    
Federal Home Loan Bank Stock $ 2,141,000 $ 1,694,000
Long-term Federal Home Loan Bank Advances 39,000,000 $ 29,000,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Due Date   2023
Long-term Debt 0  
Line of Credit Facility, Remaining Borrowing Capacity 48,400,000  
PPPLF    
Federal Home Loan Bank, Advances [Line Items]    
Current borrowing capacity 45,120,000  
Unused borrowing capacity 140,017,000  
Federal Home Loan Bank Advances [Member]    
Federal Home Loan Bank, Advances [Line Items]    
Line of Credit Facility, Remaining Borrowing Capacity 5,600,000  
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