ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Sep. 30, 2024
Foreign currency translation:
Beginning accumulated foreign currency translation	$ 310	$ 228	$ 220	$ 220
Change in cumulative translation adjustment before reclassifications	(37)	12	53	20
Income taxes	0	0	0	0
Net current period other comprehensive (loss) income	(37)	12	53	20
Ending accumulated foreign currency translation	273	240	273	240
Retirement plans:
Beginning accumulated retirement plans benefit income	1,723	1,841	1,723	1,884
Amortization of net actuarial gain	0	(21)	0	(64)
Income taxes	0	0	0	0
Net current period other comprehensive loss	0	(21)	0	(64)
Ending accumulated retirement plans benefit income	1,723	1,820	1,723	1,820
Accumulated other comprehensive income, net of taxes	$ 1,996	$ 2,060	$ 1,996	$ 2,060	$ 1,943