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Borrowings - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Short Term Debt [Line Items]    
Federal Funds Purchased $ 0 $ 0
Securities Sold under Agreements to Repurchase, Total 17 17
Short-term Debt, Total 10,017 10,017
Federal Home Loan Bank, Advances, Maturities Summary, Due in Next Twelve Months, Total 10,000 10,000
Long-term Federal Home Loan Bank advances $ 0 $ 0
Minimum [Member]    
Short Term Debt [Line Items]    
Maturity Period of Federal Funds 1 day  
Maximum [Member]    
Short Term Debt [Line Items]    
Maturity Period of Federal Funds 4 days