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STOCK AWARD PLANS - Other Stock Option Information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Compensation cost for stock options	$ 1,147	$ 1,571	$ 1,875
Weighted average grant date fair value per stock option (in dollars per share)	$ 6.69	$ 6.14	$ 5.91
Total intrinsic value of options exercised	$ 718	$ 1,228	$ 214
Grant date fair value of options exercised	648	690	198
Cash received from option exercises	$ 3,943	$ 5,187	$ 1,089

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
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Amount of cash inflow from exercise of option under share-based payment arrangement.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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