v3.25.2
FAIR VALUE MEASUREMENTS - FV of Financial instruments., nonrecurring (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2025
Dec. 31, 2024
FINANCIAL LIABILITIES:    
Accrued interest payable $ 2,319 $ 2,152
Derivative liabilities 3,617 1,463
Estimate of Fair Value Measurement | Fair Value Measurements, Nonrecurring | Fair Value, Inputs, Level 1, Level 2, and Level 3    
FINANCIAL ASSETS:    
Cash and due from banks 10,813 9,933
Interest-bearing deposits in other banks 28,240 7,321
Restricted investment in bank stocks 8,944 8,984
Net loans 953,159 929,302
Mortgage servicing rights 201 218
Accrued interest receivable 4,954 4,993
FINANCIAL LIABILITIES:    
Demand, savings and other deposits 622,853 677,762
Time deposits 433,346 366,772
Short-term borrowings 130,896 134,541
Long-term borrowings 107,442 107,728
Subordinated debentures 21,470 20,618
Accrued interest payable 2,319 2,152
Derivative liabilities 3,617 1,463
Estimate of Fair Value Measurement | Fair Value Measurements, Nonrecurring | Fair Value, Inputs, Level 1    
FINANCIAL ASSETS:    
Cash and due from banks 10,813 9,933
Interest-bearing deposits in other banks 0 0
Restricted investment in bank stocks 0 0
Net loans 0 0
Mortgage servicing rights 0 0
Accrued interest receivable 0 0
FINANCIAL LIABILITIES:    
Demand, savings and other deposits 0 0
Time deposits 0 0
Short-term borrowings 0 0
Long-term borrowings 0 0
Subordinated debentures 0 0
Accrued interest payable 0 0
Derivative liabilities 0 0
Estimate of Fair Value Measurement | Fair Value Measurements, Nonrecurring | Fair Value, Inputs, Level 2    
FINANCIAL ASSETS:    
Cash and due from banks 0 0
Interest-bearing deposits in other banks 28,240 7,321
Restricted investment in bank stocks 8,944 8,984
Net loans 0 0
Mortgage servicing rights 0 0
Accrued interest receivable 4,954 4,993
FINANCIAL LIABILITIES:    
Demand, savings and other deposits 622,853 677,762
Time deposits 433,346 366,772
Short-term borrowings 130,896 134,541
Long-term borrowings 107,442 107,728
Subordinated debentures 21,470 20,618
Accrued interest payable 2,319 2,152
Derivative liabilities 3,617 1,463
Estimate of Fair Value Measurement | Fair Value Measurements, Nonrecurring | Fair Value, Inputs, Level 3    
FINANCIAL ASSETS:    
Cash and due from banks 0 0
Interest-bearing deposits in other banks 0 0
Restricted investment in bank stocks 0 0
Net loans 953,159 929,302
Mortgage servicing rights 201 218
Accrued interest receivable 0 0
FINANCIAL LIABILITIES:    
Demand, savings and other deposits 0 0
Time deposits 0 0
Short-term borrowings 0 0
Long-term borrowings 0 0
Subordinated debentures 0 0
Accrued interest payable 0 0
Derivative liabilities 0 0
Reported Value Measurement | Fair Value Measurements, Nonrecurring    
FINANCIAL ASSETS:    
Cash and due from banks 10,813 9,933
Interest-bearing deposits in other banks 28,240 7,321
Restricted investment in bank stocks 8,944 8,984
Net loans 952,008 940,779
Mortgage servicing rights 201 218
Accrued interest receivable 4,954 4,993
FINANCIAL LIABILITIES:    
Demand, savings and other deposits 622,853 677,762
Time deposits 434,425 368,118
Short-term borrowings 129,551 134,426
Long-term borrowings 106,000 106,000
Subordinated debentures 25,000 25,000
Accrued interest payable 2,319 2,152
Derivative liabilities $ 3,617 $ 1,463