Consolidated Statement of Stockholders' Deficit - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Paid-In-Capital	Convertible Preferred Stock	Accumulated Other Comprehensive Loss	(Accumulated Deficit) Retained Earnings	Treasury Stock
Beginning Balance (in shares) at Sep. 30, 2021			27,205,269		0			1,782,568
Beginning Balance at Sep. 30, 2021	$ (32,656)	$ 74,798	$ 3	$ 96,170	$ 0	$ (44,794)	$ (33,753)	$ (50,282)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	3,539			3,539
Restricted stock activity (in shares)			116,556
Restricted stock activity	(1,688)			(1,688)
Exercise of stock options, cashless (in shares)			15,586
Stock option activity	284			284
Net income (loss)	(45,759)						(45,759)
Other comprehensive income, net of tax	2,864					2,864
Ending Balance (in shares) at Sep. 30, 2022			32,024,911		0			1,782,568
Ending Balance at Sep. 30, 2022	1,382		$ 3	173,103	$ 0	(41,930)	(79,512)	$ (50,282)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	4,015			4,015
Restricted stock activity (in shares)			79,545
Restricted stock activity	(376)			(376)
Exercise of stock options, cashless (in shares)			60,769
Stock option activity	1,119			1,119
Net income (loss)	23,812						23,812
Other comprehensive income, net of tax	10,046					10,046
Ending Balance (in shares) at Sep. 30, 2023			32,165,225		0			1,782,568
Ending Balance at Sep. 30, 2023	39,998		$ 3	177,861	$ 0	(31,884)	(55,700)	$ (50,282)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	8,466			8,466
Restricted stock activity (in shares)			65,495
Restricted stock activity	$ (1,178)			(1,178)
Exercise of stock options, cashless (in shares)	248,015		239,120
Stock option activity	$ 3,785			3,785
Net income (loss)	105,547						105,547
Other comprehensive income, net of tax	5,468					5,468
Private placement (Note 13) (in shares)			0
Issuance of warrants (Note 17)	7,416			7,416
Ending Balance (in shares) at Sep. 28, 2024			32,268,022		0			0
Ending Balance at Sep. 28, 2024	$ 159,564		$ 3	$ 185,977	$ 0	$ (26,416)	$ 0	$ 0