FAIR VALUE MEASUREMENTS - Level 3 inputs for financial instruments measured at fair value (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2023	Mar. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Loans Valuation Technique [Extensible Enumeration]		us-gaap:ValuationTechniqueDiscountedCashFlowMember
Impaired Loans Measurement Input [Extensible Enumeration]		Discount rate
Adjustments to the appraised values of impaired loans	$ 0
Discount rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans		5.375%