DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS - Schedule of financial instruments fair value (Details) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2026 USD ($)	Dec. 31, 2025 USD ($)
DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS
Carrying Amount	$ 25,774	$ 25,774
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Fair Value	$ 25,774	$ 25,774
Hierarchy Level	3	3
Deposits
DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS
Carrying Amount	$ 4,302,067	$ 4,482,774
Fair Value	$ 4,299,632	$ 4,480,770
Hierarchy Level	3	3
Short-term borrowings
DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS
Carrying Amount	$ 485,473	$ 379,395
Fair Value	$ 485,473	$ 379,395
Hierarchy Level	3	3
Interest payable
DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS
Carrying Amount	$ 3,080	$ 3,612
Fair Value	$ 3,080	$ 3,612
Hierarchy Level	3	3
Unrecognized financial instruments (net of contractual value) \| Commitments to originate loans
DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS
Hierarchy Level	3	3
Unrecognized financial instruments (net of contractual value) \| Letters of credit
DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS
Carrying Amount	$ 144	$ 53
Fair Value	$ 144	$ 53
Hierarchy Level	3	3
Unrecognized financial instruments (net of contractual value) \| Lines of credit
DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS
Hierarchy Level	3	3
Loans, net of allowance for credit losses
DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS
Carrying Amount	$ 4,307,712	$ 4,356,853
Fair Value	$ 4,239,792	$ 4,261,757
Hierarchy Level	3	3
Cash and cash equivalents
DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS
Carrying Amount	$ 179,981	$ 189,554
Fair Value	$ 179,981	$ 189,554
Hierarchy Level	1	1
Held-to-maturity securities
DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS
Carrying Amount	$ 175,264	$ 179,200
Fair Value	$ 157,872	$ 162,629
Hierarchy Level	2	2
Mortgage loans held for sale
DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS
Carrying Amount	$ 7,868	$ 6,838
Fair Value	$ 7,868	$ 6,838
Hierarchy Level	2	2
Interest receivable
DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS
Carrying Amount	$ 18,467	$ 18,068
Fair Value	$ 18,467	$ 18,068
Hierarchy Level	3	3
Investment in FHLB stock and other assets
DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS
Carrying Amount	$ 27,414	$ 20,079
Fair Value	$ 27,414	$ 20,079
Hierarchy Level	3	3

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