CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY AND NONCONTROLLING INTEREST - USD ($) $ in Thousands	Total	Common Shares	Additional paid-in capital	Accumulated deficit	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Sep. 30, 2024		26,015,129
Beginning balance at Sep. 30, 2024	$ 170,504	$ 6,466	$ 724,789	$ (562,163)	$ 1,412
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Consolidated net loss	(27,630)			(27,630)
Issuance of common shares (in shares)		6,900,000
Issuance of common shares	27,524	$ 1,725	25,799
Issuance of stock under employee stock plans (in shares)		1,520
Issuance of stock under employee stock plans	1		1
Stock-based compensation	1,770		1,770
Pension cost amortization	66				66
Foreign currency translation adjustment	(2,379)				(2,379)
Other (in shares)		801,013
Other	(24)	$ 200	(223)	(1)
Ending balance (in shares) at Dec. 31, 2024		33,717,662
Ending balance at Dec. 31, 2024	$ 169,832	$ 8,391	752,136	(589,794)	(901)
Beginning balance (in shares) at Sep. 30, 2025	34,357,251	34,357,251
Beginning balance at Sep. 30, 2025	$ 136,028	$ 8,551	756,062	(630,813)	2,228
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Consolidated net loss	(28,378)			(28,378)
Issuance of stock under employee stock plans (in shares)		37,720
Issuance of stock under employee stock plans	19	$ 9	10
Stock-based compensation	1,382		1,382
Pension cost amortization	71				71
Foreign currency translation adjustment	$ (98)				(98)
Ending balance (in shares) at Dec. 31, 2025	34,394,971	34,394,971
Ending balance at Dec. 31, 2025	$ 109,024	$ 8,560	$ 757,454	$ (659,191)	$ 2,201