CONDENSED 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. 29, 2023		10,250,949
Balance, beginning 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)				3,955
Dividends declared				(3,347)
Award of non-vested shares (in shares)		37,712
Award of non-vested shares		$ 2	(2)
Stock-based compensation			598
Currency translation adjustment					3,059
Unrealized gain (loss) on available-for-sale securities, net of tax					102
Change in pension plans, net of tax					7
Purchase of treasury stock at cost (in shares)		(4,661)
Purchase of treasury stock at cost						(241)
Balance, end of period (in shares) at Dec. 29, 2023		10,284,000
Balance, end of period at Dec. 29, 2023		$ 516	88,830	410,182	6,491	(2,149)
Balance, beginning of period (in shares) at Sep. 29, 2023		10,250,949
Balance, beginning 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)	$ 6,111
Currency translation adjustment	680
Unrealized gain (loss) on available-for-sale securities, net of tax	0
Balance, end of period (in shares) at Mar. 29, 2024		10,301,342
Balance, end of period at Mar. 29, 2024	500,089	$ 517	88,990	408,970	4,102	(2,490)
Balance, beginning of period (in shares) at Dec. 29, 2023		10,284,000
Balance, beginning of period at Dec. 29, 2023		$ 516	88,830	410,182	6,491	(2,149)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	2,156			2,156
Dividends declared				(3,368)
Award of non-vested shares (in shares)		22,692
Award of non-vested shares		$ 1	(1)
Stock-based compensation			(180)
Currency translation adjustment	2,379				(2,379)
Unrealized gain (loss) on available-for-sale securities, net of tax					(18)
Change in pension plans, net of tax					8
Non-vested stock forfeitures (in shares)		(5,350)
Non-vested stock forfeitures			341			(341)
Balance, end of period (in shares) at Mar. 29, 2024		10,301,342
Balance, end of period at Mar. 29, 2024	500,089	$ 517	88,990	408,970	4,102	(2,490)
Balance, beginning of period (in shares) at Sep. 27, 2024		10,301,738
Balance, beginning 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)				(15,290)
Dividends declared				(3,362)
Award of non-vested shares (in shares)		32,121
Award of non-vested shares		$ 1	(1)
Stock-based compensation			507
Currency translation adjustment					(4,915)
Unrealized gain (loss) on available-for-sale securities, net of tax					(1)
Change in pension plans, net of tax					9
Non-vested stock forfeitures (in shares)		(3,690)
Non-vested stock forfeitures			200			(200)
Purchase of treasury stock at cost (in shares)		(2,657)
Purchase of treasury stock at cost						(88)
Balance, end of period (in shares) at Dec. 27, 2024		10,327,512
Balance, end of period at Dec. 27, 2024		$ 518	90,852	350,940	1,057	(3,083)
Balance, beginning of period (in shares) at Sep. 27, 2024		10,301,738
Balance, beginning 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)	(12,986)
Currency translation adjustment	(3,782)
Unrealized gain (loss) on available-for-sale securities, net of tax	0
Balance, end of period (in shares) at Mar. 28, 2025		10,366,060
Balance, end of period at Mar. 28, 2025	441,102	$ 521	91,599	349,872	2,193	(3,083)
Balance, beginning of period (in shares) at Dec. 27, 2024		10,327,512
Balance, beginning of period at Dec. 27, 2024		$ 518	90,852	350,940	1,057	(3,083)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	2,304			2,304
Dividends declared				(3,372)
Award of non-vested shares (in shares)		38,548
Award of non-vested shares		$ 3	(3)
Stock-based compensation			750
Currency translation adjustment	1,133				1,133
Unrealized gain (loss) on available-for-sale securities, net of tax					(4)
Change in pension plans, net of tax					7
Balance, end of period (in shares) at Mar. 28, 2025		10,366,060
Balance, end of period at Mar. 28, 2025	$ 441,102	$ 521	$ 91,599	$ 349,872	$ 2,193	$ (3,083)