OTHER INCOME (EXPENSE) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Other Income and Expenses [Abstract]
Other income (expense)	$ 512	$ 626	$ 2,344	$ 1,258
Foreign currency transaction gain (loss), before tax	(222)	179	218	191
Net periodic (benefit) expense	(299)	35	(600)	69
Net investment income (loss)	(16)	29	54	85
Royalty income	$ 556	$ 509	$ 1,146	$ 1,100

Amount of net periodic benefit cost (credit) for defined benefit plan.

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Amount, before tax, of realized and unrealized gain (loss) from foreign currency transaction.

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Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities.

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Amount of income (expense) related to nonoperating activities, classified as other.

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Ancillary revenue earned during the period from the consideration paid to the entity for the use of its rights and property by another party. Examples include licensing the use of copyrighted materials and leasing the extraction of natural resources.

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