Consolidated Condensed Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (2,367)	$ 3,639	$ (4,956)	$ (52)
Other comprehensive (loss) income:
Foreign currency translation adjustment, net of tax	74	(136)	416	(259)
Retirement plan liability adjustment, net of tax	74	119	152	238
Other	0	0	1	0
Comprehensive (loss) income	$ (2,219)	$ 3,622	$ (4,387)	$ (73)