BORROWINGS - Remaining contractual maturity of repurchase agreements (Details) $ in Thousands	Jun. 30, 2026 USD ($)
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	$ 35,604
U.S. Treasury and/or agency securities
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	35,604
Overnight and Continuous
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	35,604
Overnight and Continuous \| U.S. Treasury and/or agency securities
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	35,604
Up to 30 days
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	0
Up to 30 days \| U.S. Treasury and/or agency securities
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	0
Greater 30 - 90 Days
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	0
Greater 30 - 90 Days \| U.S. Treasury and/or agency securities
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	0
Greater than 90 Days
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	0
Greater than 90 Days \| U.S. Treasury and/or agency securities
Repurchase agreements and repurchase-to-maturity transactions:
Remaining Contractual Maturity of the Agreements	$ 0