Annual report [Section 13 and 15(d), not S-K Item 405]

INVESTMENT SECURITIES (Narrative) (Details)

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INVESTMENT SECURITIES (Narrative) (Details)
 3 Months Ended 12 Months Ended
Sep. 30, 2022
USD ($)
Securities
Dec. 31, 2024
USD ($)
Securities
Item
Dec. 31, 2023
USD ($)
Securities
Item
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Investment Securities [Abstract]          
Securities pledged to secure public deposits   $ 489,500,000 $ 578,500,000    
Schedule of Available-for-sale Securities [Line Items]          
Number of holdings securities in an amount greater than 10% of shareowner's equity | Securities   0 0    
Amortized Cost   $ 429,033,000 $ 367,747,000    
Fair Value   403,345,000 337,902,000    
Unrealized Losses   25,685,000 29,928,000    
Allowance for Credit Losses   29,251,000 29,941,000 $ 25,068,000 $ 21,606,000
Equity Securities   2,399,000 3,450,000    
Securities held nonaccrual status   0      
Proceeds from the Sale of Securities   0 30,420,000 $ 3,365,000  
Municipal Securities [Member]          
Schedule of Available-for-sale Securities [Line Items]          
Allowance for Credit Losses   $ 3,000      
Number of positions in AFS and HTM investments with unrealized losses | Item   97      
U.S. Government and Municipal Bonds [Member]          
Schedule of Available-for-sale Securities [Line Items]          
Number of positions in AFS and HTM investments with unrealized losses | Item   676      
Debt Securities [Member]          
Schedule of Available-for-sale Securities [Line Items]          
Available-for-sale Securities and Held-To-Maturity, Continuous Unrealized Loss Position, Accumulated Loss   $ 48,400,000 $ 63,200,000    
Number of positions in AFS and HTM investments with unrealized losses | Item   856 878    
U.S. Treasury Securities [Member]          
Schedule of Available-for-sale Securities [Line Items]          
Amortized Cost   $ 106,710,000 $ 25,947,000    
Fair Value   105,801,000 24,679,000    
Unrealized Losses   $ 934,000 1,269,000    
Number of positions in AFS and HTM investments with unrealized losses | Item   83      
U.S. Government Agency [Member]          
Schedule of Available-for-sale Securities [Line Items]          
Amortized Cost   $ 148,666,000 152,983,000    
Fair Value   143,127,000 145,034,000    
Unrealized Losses   5,578,000 8,053,000    
Allowance for Credit Losses   0      
Estimated write off of loans and leases receivable   0      
Available-for-sale Securities [Member]          
Schedule of Available-for-sale Securities [Line Items]          
Number of available for sale securities transferred | Securities 33        
Amortized Cost $ 168,400,000        
Fair Value $ 159,000,000.0        
Unrealized Losses   1,300,000 4,500,000    
Corporate Debt Securities [Member]          
Schedule of Available-for-sale Securities [Line Items]          
Amortized Cost   55,970,000 63,600,000    
Fair Value   51,462,000 57,552,000    
Unrealized Losses   4,444,000 $ 6,031,000    
Allowance for Credit Losses   $ 64,000