RETIREMENT PLANS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Pension Plan
Net periodic benefit cost:
Interest cost	$ 102	$ 73	$ 305	$ 218
Expected return on plan assets	(167)	(156)	(500)	(467)
Amortization of net actuarial gain	0	0	0	0
Net periodic benefit (income) cost	(65)	(83)	(195)	(249)
Other disclosures
Estimated future Pension Plan contributions	0		0
SERP
Net periodic benefit cost:
Interest cost	22	15	66	45
Expected return on plan assets	0	0	0	0
Amortization of net actuarial gain	(20)	0	(60)	0
Net periodic benefit (income) cost	$ 2	$ 15	$ 6	$ 45