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INVESTMENT SECURITIES - Amortized cost and estimated fair value of held-to-maturity securities excluding SBIC (Details)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2022
USD ($)
security
Dec. 31, 2021
USD ($)
security
Debt Securities, Available-for-sale And Held-to-maturity [Line Items]    
Due within one year amortized cost $ 251  
Due between one year and five years amortized cost 2,232  
Due between five years and ten years amortized cost 21,565  
Due after ten years, amortized cost 315  
Securities (CMO and MBS), amortized cost 59,894  
Securities held-to-maturity, Amortized Cost 84,257  
Due within one year fair value 249  
Due between one year and five years fair value 2,135  
Due between five years and ten years fair value 20,022  
Due after ten years, fair value 307  
Securities (CMO and MBS), fair value 55,911  
Fair Value 78,624  
Held to maturity securities pledged as collateral $ 15,800  
Debt available for sale securities pledged as collateral   $ 17,300
Threshold Percentage Of Shareholders Equity Amount Held As Securities By One Issuer 10.00% 10.00%
Unrealized loss $ 5,649  
Available for sale securities, excluding SBIC    
Debt Securities, Available-for-sale And Held-to-maturity [Line Items]    
Number of held to maturity securities unrealized loss position | security 99  
Number of securities in continuous unrealized loss position for more than twelve months | security 9  
Securities Held To Maturity [Member]    
Debt Securities, Available-for-sale And Held-to-maturity [Line Items]    
Number of securities in unrealized loss position | security   10