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BORROWINGS - Short-term borrowings (Details)
12 Months Ended
Dec. 31, 2022
USD ($)
note
Dec. 31, 2021
USD ($)
note
Short-term borrowings    
Total short-term debt $ 351,054,000 $ 17,678,000
FHLB, weighted average interest rate 1.91% 0.08%
Federal funds purchased $ 0 $ 0
FHLB advances maturing in less than one year from date of origination, and the current portion of long-term FHLB advances due within 12 months    
Short-term borrowings    
Total short-term debt 339,054,000 5,678,000
Term Loan, current portion due within 12 months    
Short-term borrowings    
Total short-term debt $ 12,000,000 $ 12,000,000
Federal Home Loan Bank Certificates and Obligations (FHLB)    
Short-term borrowings    
Number of FHLB notes | note 4 2
FHLB, weighted average interest rate 4.28% 0.36%
Minimum    
Short-term borrowings    
Short-term borrowings, mature period 1 day  
Maximum    
Short-term borrowings    
Short-term borrowings, mature period 90 days