Federal Funds Purchased and Securities Sold under Agreements to Repurchase - Repurchase Agreements - Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total	$ 5,115	$ 5,187
U.S. government-sponsored enterprises
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total	5,115	5,187
Overnight and continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total	5,115	5,187
Overnight and continuous | U.S. government-sponsored enterprises
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total	5,115	5,187
Less than 90 days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total	0	0
Less than 90 days | U.S. government-sponsored enterprises
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total	0	0
Greater than 90 days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total	0	0
Greater than 90 days | U.S. government-sponsored enterprises
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total	$ 0	$ 0