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INVESTMENT SECURITIES - Narrative (Details)
$ in Thousands
9 Months Ended
Sep. 30, 2022
USD ($)
security
Jun. 30, 2022
USD ($)
Dec. 31, 2021
USD ($)
Sep. 30, 2021
USD ($)
Jun. 30, 2021
USD ($)
Dec. 31, 2020
USD ($)
Debt Securities, Available-for-sale [Line Items]            
Allowance for credit loss | $ $ 79 $ 88 $ 0 $ 0 $ 81 $ 112
Unrealized losses | $ 64,247   195      
Expected credit losses | $ 0          
Debt securities, held-to-maturity, allowance for credit loss | $ $ 0   0      
Debt Securities            
Debt Securities, Available-for-sale [Line Items]            
Number of securities in portfolio | security 441          
Number of securities in unrealized loss position | security 425          
Number of securities in portfolio | security 24          
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises            
Debt Securities, Available-for-sale [Line Items]            
Number of securities in unrealized loss position | security 338          
Number of securities in unrealized loss position | security 18          
SBA pool securities            
Debt Securities, Available-for-sale [Line Items]            
Number of securities in unrealized loss position | security 33          
Allowance for credit loss | $ $ 0   0      
Unrealized losses | $ $ 2,216   69      
State, County And Municipal Securities            
Debt Securities, Available-for-sale [Line Items]            
Number of securities in unrealized loss position | security 30          
Corporate debt securities            
Debt Securities, Available-for-sale [Line Items]            
Number of securities in unrealized loss position | security 5          
Allowance for credit loss | $ $ 79   0      
Unrealized losses | $ $ 522   120      
U.S. government sponsored agency security            
Debt Securities, Available-for-sale [Line Items]            
Number of securities in unrealized loss position | security 1          
State, county and municipal securities            
Debt Securities, Available-for-sale [Line Items]            
Number of securities in unrealized loss position | security 18          
Number of securities in unrealized loss position | security 6          
Allowance for credit loss | $ $ 0   0      
Unrealized losses | $ 1,584   0      
Collateral Pledged            
Debt Securities, Available-for-sale [Line Items]            
Pledged securities, carrying value | $ $ 663,600   $ 366,700