Annual report pursuant to Section 13 and 15(d)

FAIR VALUE MEASUREMENTS - (Summary of estimated fair values of significant financial instruments) (Details)

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FAIR VALUE MEASUREMENTS - (Summary of estimated fair values of significant financial instruments) (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
ASSETS:        
Investment Securities Available for Sale $ 413,294 $ 654,611    
Equity Securities 10 861    
Loans Held for Sale 54,635 52,532    
Mortgage Servicing Rights 6,067 3,774 $ 3,452 $ 910
LIABILITIES:        
Derivative Liabilities 73,675 67,735    
Level 1 Inputs [Member]        
ASSETS:        
Cash 72,114 65,313    
Short-Term Investments 528,536 970,041    
Investment Securities, Held to Maturity 431,733 113,877    
Equity Securities 0      
Other Equity Securities 0      
Mortgage Servicing Rights 0 0    
Loans, Net of Allowance for Credit Losses 0 0    
LIABILITIES:        
Deposits 0 0    
Short-Term Borrowings 0 0    
Subordinated Notes Payable 0 0    
Long-Term Borrowings 0 0    
Level 2 Inputs [Member]        
ASSETS:        
Cash 0 0    
Short-Term Investments 0 0    
Investment Securities, Held to Maturity 180,968 225,822    
Equity Securities 10      
Other Equity Securities 2,848      
Mortgage Servicing Rights 0 0    
Loans, Net of Allowance for Credit Losses 0 0    
LIABILITIES:        
Deposits 3,310,383 3,713,478    
Short-Term Borrowings 56,793 34,557    
Subordinated Notes Payable 45,763 42,609    
Long-Term Borrowings 513 938    
Level 3 Inputs [Member]        
ASSETS:        
Cash 0 0    
Short-Term Investments 0 0    
Investment Securities, Held to Maturity 0 0    
Equity Securities 0      
Other Equity Securities 0      
Mortgage Servicing Rights 8,503 4,718    
Loans, Net of Allowance for Credit Losses 2,357,533 1,903,640    
LIABILITIES:        
Deposits 0 0    
Short-Term Borrowings 0 0    
Subordinated Notes Payable 0 0    
Long-Term Borrowings 0 0    
Carrying Value [Member]        
ASSETS:        
Cash 72,114 65,313    
Short-Term Investments 528,536 970,041    
Investment Securities, Held to Maturity 660,774 339,601    
Equity Securities 10 861    
Other Equity Securities 2,848 2,848    
Mortgage Servicing Rights 6,067 3,774    
Loans, Net of Allowance for Credit Losses 2,500,444 1,909,859    
LIABILITIES:        
Deposits 3,939,317 3,712,862    
Short-Term Borrowings 56,793 34,557    
Subordinated Notes Payable 52,887 52,887    
Long-Term Borrowings $ 513 884    
Carrying Value [Member] | Level 1 Inputs [Member]        
ASSETS:        
Equity Securities   0    
Other Equity Securities   0    
Carrying Value [Member] | Level 2 Inputs [Member]        
ASSETS:        
Equity Securities   861    
Other Equity Securities   2,848    
Carrying Value [Member] | Level 3 Inputs [Member]        
ASSETS:        
Equity Securities   0    
Other Equity Securities   $ 0