LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR CREDIT LOSSES (Details) - USD ($)		3 Months Ended				6 Months Ended
	Oct. 01, 2023	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2024	Mar. 31, 2023	Sep. 30, 2023
LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR CREDIT LOSSES (Details) [Line Items]
Commercial relationships, description						Generally, the external consultant reviews commercial relationships greater than $500 thousand and/or criticized relationships greater than $250 thousand.
Allowance for credit losses	$ 492,000
Provisions for credit losses		$ 14,000		$ 195,000		$ 495,000	$ 513,000
Loan recoveries		65,000		$ 1,000		66,000
Allowance for credit losses		7,700,000				7,700,000		$ 8,300,000
Off-balance sheet commitments increased		705,000				705,000		$ 0
Residential Real Estate [Member]
LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR CREDIT LOSSES (Details) [Line Items]
Residential loans		$ 304,000				304,000
Minimum [Member]
LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR CREDIT LOSSES (Details) [Line Items]
Allowance for credit losses						69,000
Maximum [Member]
LOANS RECEIVABLE, NET AND RELATED ALLOWANCE FOR CREDIT LOSSES (Details) [Line Items]
Allowance for credit losses						$ 8,400,000