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, 2021
Dec. 31, 2020
Dec. 31, 2019
ASSETS:      
Investment Securities Available for Sale $ 654,611 $ 324,870  
Equity Securities 861 0  
Loans Held for Sale 52,532 114,039  
Mortgage Servicing Rights 3,774 3,452 $ 910
Level 1 Inputs [Member]      
ASSETS:      
Cash 65,313 67,919  
Short-Term Investments 970,041 860,630  
Investment Securities Available for Sale 187,868 104,519  
Investment Securities Held to Maturity 113,877 5,014  
Equity Securities 0    
Loans Held for Sale 0 0  
Other equity securities 0 0  
Interest Rate Swap Derivative 0 0  
Mortgage Servicing Rights 0 0  
Derivative Assets 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 1 Inputs [Member] | Mortgage Banking IRLC Derivative [Member]      
ASSETS:      
Derivative Assets   0  
Level 1 Inputs [Member] | Mortgage Banking Hedge Derivative [Member]      
LIABILITIES:      
Derivative Liabilities 0 0  
Level 2 Inputs [Member]      
ASSETS:      
Cash 0 0  
Short-Term Investments 0 0  
Investment Securities Available for Sale 466,743 220,351  
Investment Securities Held to Maturity 225,822 170,161  
Equity Securities 861    
Loans Held for Sale 52,532 114,039  
Other equity securities 2,848 3,589  
Interest Rate Swap Derivative 2,050 574  
Mortgage Servicing Rights 0 0  
Derivative Assets 0    
Loans, Net of Allowance for Credit Losses 0 0  
LIABILITIES:      
Deposits 3,713,478 3,217,615  
Short-Term Borrowings 34,557 79,654  
Subordinated Notes Payable 42,609 43,449  
Long-Term Borrowings 938 3,174  
Level 2 Inputs [Member] | Mortgage Banking IRLC Derivative [Member]      
ASSETS:      
Derivative Assets   0  
Level 2 Inputs [Member] | Mortgage Banking Hedge Derivative [Member]      
LIABILITIES:      
Derivative Liabilities 7 907  
Level 3 Inputs [Member]      
ASSETS:      
Cash 0 0  
Short-Term Investments 0 0  
Investment Securities Available for Sale 0 0  
Investment Securities Held to Maturity 0 0  
Equity Securities 0    
Loans Held for Sale 0 0  
Other equity securities 0 0  
Interest Rate Swap Derivative 0 0  
Mortgage Servicing Rights 4,718 3,451  
Derivative Assets 1,258    
Loans, Net of Allowance for Credit Losses 1,903,640 1,990,740  
LIABILITIES:      
Deposits 0 0  
Short-Term Borrowings 0 0  
Subordinated Notes Payable 0 0  
Long-Term Borrowings 0 0  
Level 3 Inputs [Member] | Mortgage Banking IRLC Derivative [Member]      
ASSETS:      
Derivative Assets   4,825  
Level 3 Inputs [Member] | Mortgage Banking Hedge Derivative [Member]      
LIABILITIES:      
Derivative Liabilities 0 0  
Carrying Value [Member]      
ASSETS:      
Cash 65,313 67,919  
Short-Term Investments 970,041 860,630  
Investment Securities Available for Sale 654,611 324,870  
Investment Securities Held to Maturity 339,601 169,939  
Equity Securities 861 3,589  
Loans Held for Sale 52,532 114,039  
Other equity securities 2,848 3,589  
Interest Rate Swap Derivative 2,050 574  
Mortgage Servicing Rights 3,774 3,452  
Derivative Assets 1,258    
Loans, Net of Allowance for Credit Losses 1,909,859 1,982,610  
LIABILITIES:      
Deposits 3,712,862 3,217,560  
Short-Term Borrowings 34,557 79,654  
Subordinated Notes Payable 52,887 52,887  
Long-Term Borrowings 884 3,057  
Carrying Value [Member] | Mortgage Banking IRLC Derivative [Member]      
ASSETS:      
Derivative Assets   4,825  
Carrying Value [Member] | Mortgage Banking Hedge Derivative [Member]      
LIABILITIES:      
Derivative Liabilities $ 7 $ 907