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BORROWINGS - Revolving Credit Agreement (Details) - USD ($)
9 Months Ended
Sep. 30, 2023
Oct. 11, 2023
Jul. 29, 2023
Dec. 31, 2022
Aug. 02, 2019
Line of Credit Facility [Line Items]          
Federal Funds purchased $ 0     $ 22,000,000  
Unsecured Revolving Credit Agreement          
Line of Credit Facility [Line Items]          
Maximum borrowing capacity     $ 12,500,000   $ 30,000,000
Debt instrument, term 1 year        
Federal Funds purchased $ 0     $ 0  
Unsecured Revolving Credit Agreement | Subsequent Event          
Line of Credit Facility [Line Items]          
Maximum borrowing capacity   $ 30,000,000