RETIREMENT PLANS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Pension Plan
Net periodic benefit cost:
Interest cost	$ 101	$ 72	$ 203	$ 145
Expected return on plan assets	(166)	(155)	(333)	(311)
Amortization of net actuarial gain	0	0	0	0
Net periodic benefit (income) cost	(65)	(83)	(130)	(166)
Other disclosures
Estimated future Pension Plan contributions	0		0
SERP
Net periodic benefit cost:
Interest cost	22	15	44	30
Expected return on plan assets	0	0	0	0
Amortization of net actuarial gain	(20)	0	(40)	0
Net periodic benefit (income) cost	$ 2	$ 15	$ 4	$ 30