CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Balance, beginning of period (in shares) at Sep. 30, 2022		10,192,051
Balance, beginning of period at Sep. 30, 2022		$ 512	$ 87,351	$ 402,821	$ 620	$ (3,290)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 19,534			19,534
Dividends declared				(12,781)
Issuance of stock under employee stock purchase plan (in shares)		5,401
Issuance of stock under employee stock purchase plan			266			460
Award of non-vested shares (in shares)		71,742
Award of non-vested shares		$ 2	(2,586)			2,123
Stock-based compensation			2,446
B to A conversion			(2)			2
Currency translation adjustment	2,790				2,790
Unrealized (loss) gain on available-for-sale securities, net of tax	(121)				(121)
Change in pension plans, net of tax					34
Non-vested stock forfeitures (in shares)		(10,632)
Non-vested stock forfeitures			759			(759)
Purchase of treasury stock at cost (in shares)		(7,613)
Purchase of treasury stock at cost						(444)
Balance, end of period (in shares) at Sep. 29, 2023		10,250,949
Balance, end of period at Sep. 29, 2023		$ 514	88,234	409,574	3,323	(1,908)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(26,533)			(26,533)
Dividends declared				(13,449)
Issuance of stock under employee stock purchase plan (in shares)		4,937
Issuance of stock under employee stock purchase plan			172			0
Award of non-vested shares (in shares)		63,164
Award of non-vested shares		$ 3	(3)			0
Stock-based compensation			1,292
Currency translation adjustment	2,475				2,475
Unrealized (loss) gain on available-for-sale securities, net of tax	138				138
Change in pension plans, net of tax					28
Non-vested stock forfeitures (in shares)		(7,237)
Non-vested stock forfeitures			451			(451)
Purchase of treasury stock at cost (in shares)		(10,075)
Purchase of treasury stock at cost						(436)
Balance, end of period (in shares) at Sep. 27, 2024		10,301,738
Balance, end of period at Sep. 27, 2024	463,424	$ 517	90,146	369,592	5,964	(2,795)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(34,294)			(34,294)
Dividends declared				(13,530)
Issuance of stock under employee stock purchase plan (in shares)		6,203
Issuance of stock under employee stock purchase plan			120
Award of non-vested shares (in shares)		72,045
Award of non-vested shares		$ 4	(4)
Stock-based compensation			1,495
B to A conversion			(90)			90
Currency translation adjustment	1,300				1,300
Unrealized (loss) gain on available-for-sale securities, net of tax	(17)				(17)
Change in pension plans, net of tax					42
Non-vested stock forfeitures (in shares)		(3,690)
Non-vested stock forfeitures			200			(200)
Purchase of treasury stock at cost (in shares)		(3,465)
Purchase of treasury stock at cost						(121)
Balance, end of period (in shares) at Oct. 03, 2025		10,372,831
Balance, end of period at Oct. 03, 2025	$ 418,419	$ 521	$ 91,867	$ 321,768	$ 7,289	$ (3,026)