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ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Foreign currency translation:
Balance at beginning of period	$ 262	$ 545
Change in cumulative translation adjustment before reclassifications	(40)	(283)
Foreign currency translation adjustments, taxes	0	0
Net current period other comprehensive loss	(40)	(283)
Balance at end of the period	222	262
Retirement plans:
Balance at beginning of period	(230)	(1,980)
Amortization of net actuarial loss	0	101
Net actuarial gain arising during the period	1,302	1,108
Gain on termination of post-retirement medical plan	0	541
Amortization of accumulated other comprehensive loss into net periodic benefit costs, taxes	0	0
Net current period other comprehensive income	1,302	1,750
Balance at end of the period	1,072	(230)
Accumulated other comprehensive income, net	$ 1,294	$ 32

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Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

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