Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Shares	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance at Sep. 30, 2021	$ 49,622	$ 5,987	$ 11,118	$ 41,596	$ (9,079)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive (loss) income	(9,254)			(9,640)	386
Performance and restricted share expense	428		428
Share transactions under employee stock plans	(106)	53	(159)
Ending balance at Sep. 30, 2022	40,690	6,040	11,387	31,956	(8,693)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive (loss) income	(6,659)			(8,692)	2,033
Performance and restricted share expense	375		375
Share transactions under employee stock plans	(71)	65	(136)
Ending balance at Sep. 30, 2023	$ 34,335	$ 6,105	$ 11,626	$ 23,264	$ (6,660)