RETIREMENT PLANS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Pension Plan
Net periodic benefit cost:
Interest cost	$ 102	$ 101	$ 205	$ 203
Expected return on plan assets	(191)	(166)	(383)	(333)
Amortization of net actuarial gain	0	0	0	0
Net periodic benefit (income) cost	(89)	(65)	(178)	(130)
Other disclosures
Estimated future Pension Plan contributions	0		0
SERP
Net periodic benefit cost:
Interest cost	24	22	48	44
Expected return on plan assets	0	0	0	0
Amortization of net actuarial gain	(22)	(20)	(43)	(40)
Net periodic benefit (income) cost	$ 2	$ 2	$ 5	$ 4