Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net (loss)	$ (9,640)	$ (743)
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustment, net of tax $0 and $0, respectively	(837)	(102)
Retirement plan liability adjustment, net of tax $0 and $0, respectively	1,211	4,491
Interest rate swap agreement adjustment, net of tax $0 and $0, respectively	12	0
Comprehensive (loss) income	$ (9,254)	$ 3,646