INTEREST RATE DERIVATIVES - Fair Value of Outstanding Derivatives (Details) - Interest Rate Swap - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023	Feb. 14, 2023	Dec. 14, 2022
Derivative [Line Items]
Accrued Interest Receivable and Other Assets			$ 3,650	$ 2,000
Designated as hedging Instrument | Fair Value Hedge
Derivative [Line Items]
Accrued Interest Receivable and Other Assets	$ 68	$ 250
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Interest Receivable and Other Assets	Interest Receivable and Other Assets