Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock Including Additional Paid in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Sep. 24, 2022	19,219,000
Balance at Sep. 24, 2022	$ 94,026	$ (13,713)	$ 782,856	$ 863,169
Common Stock issued in connection with employee and director plans, net of tax withheld (in shares)	10,000
Common Stock issued in connection with employee and director plans, net of tax withheld	$ 1,285	0	0	1,285
Foreign currency translation adjustment	0	871	0	871
Dividends declared	0	0	(13,461)	(13,461)
Share-based compensation	1,239	0	0	1,239
Net earnings	0	0	6,633
Dividends declared	(0)	(0)	13,461	13,461
Net earnings	$ 0	0	6,633
Balance (in shares) at Dec. 24, 2022	19,229,000
Balance at Dec. 24, 2022	$ 96,550	(12,842)	776,028	859,736
Balance (in shares) at Sep. 24, 2022	19,219,000
Balance at Sep. 24, 2022	$ 94,026	(13,713)	782,856	863,169
Net earnings				48,485
Net earnings				48,485
Balance (in shares) at Jun. 24, 2023	19,270,000
Balance at Jun. 24, 2023	$ 104,250	(8,999)	790,916	886,167
Balance (in shares) at Dec. 24, 2022	19,229,000
Balance at Dec. 24, 2022	$ 96,550	(12,842)	776,028	859,736
Common Stock issued in connection with employee and director plans, net of tax withheld (in shares)	14,000
Common Stock issued in connection with employee and director plans, net of tax withheld	$ 1,713	0	0	1,713
Foreign currency translation adjustment	0	1,068	0	1,068
Dividends declared	0	0	(13,475)	(13,475)
Share-based compensation	1,313	0	0	1,313
Net earnings	$ 0	0	6,871	6,871
Issuance of common stock for employee stock purchase plan (in shares)	9,000
Issuance of common stock for employee stock purchase plan	$ 1,061	0	0	1,061
Dividends declared	(0)	(0)	13,475	13,475
Net earnings	$ 0	0	6,871	6,871
Balance (in shares) at Mar. 25, 2023	19,252,000
Balance at Mar. 25, 2023	$ 100,637	(11,774)	769,424	858,287
Common Stock issued in connection with employee and director plans, net of tax withheld (in shares)	18,000
Common Stock issued in connection with employee and director plans, net of tax withheld	$ 2,230	0	0	2,230
Foreign currency translation adjustment	0	2,775	0	2,775
Dividends declared	0	0	(13,489)	(13,489)
Share-based compensation	1,383	0	0	1,383
Net earnings	0	0	34,981	34,981
Dividends declared	(0)	(0)	13,489	13,489
Net earnings	$ 0	0	34,981	34,981
Balance (in shares) at Jun. 24, 2023	19,270,000
Balance at Jun. 24, 2023	$ 104,250	(8,999)	790,916	$ 886,167
Balance (in shares) at Sep. 30, 2023	19,332,000			19,332,000
Balance at Sep. 30, 2023	$ 114,556	(10,166)	807,128	$ 911,518
Common Stock issued in connection with employee and director plans, net of tax withheld (in shares)	35,000
Common Stock issued in connection with employee and director plans, net of tax withheld	$ 4,481	0	0	4,481
Foreign currency translation adjustment	0	1,935	0	1,935
Dividends declared	0	0	(14,235)	(14,235)
Share-based compensation	1,480	0	0	1,480
Net earnings	0	0	7,282	7,282
Dividends declared	(0)	(0)	14,235	14,235
Net earnings	$ 0	0	7,282	7,282
Balance (in shares) at Dec. 30, 2023	19,367,000
Balance at Dec. 30, 2023	$ 120,517	(8,231)	800,175	$ 912,461
Balance (in shares) at Sep. 30, 2023	19,332,000			19,332,000
Balance at Sep. 30, 2023	$ 114,556	(10,166)	807,128	$ 911,518
Foreign currency translation adjustment				(2,263)
Net earnings				56,910
Net earnings				$ 56,910
Balance (in shares) at Jun. 29, 2024	19,408,000			19,332,000
Balance at Jun. 29, 2024	$ 129,054	(12,429)	821,291	$ 937,916
Balance (in shares) at Dec. 30, 2023	19,367,000
Balance at Dec. 30, 2023	$ 120,517	(8,231)	800,175	912,461
Common Stock issued in connection with employee and director plans, net of tax withheld (in shares)	9,000
Common Stock issued in connection with employee and director plans, net of tax withheld	$ 715	0	0	715
Foreign currency translation adjustment	0	348	0	348
Dividends declared	0	0	(14,249)	(14,249)
Share-based compensation	1,728	0	0	1,728
Net earnings	$ 0	0	13,329	13,329
Issuance of common stock for employee stock purchase plan (in shares)	10,000
Issuance of common stock for employee stock purchase plan	$ 1,320	0	0	1,320
Dividends declared	0	(0)	14,249	14,249
Net earnings	$ 0	0	13,329	13,329
Balance (in shares) at Mar. 30, 2024	19,386,000
Balance at Mar. 30, 2024	$ 124,280	(7,883)	799,255	915,652
Common Stock issued in connection with employee and director plans, net of tax withheld (in shares)	22,000
Common Stock issued in connection with employee and director plans, net of tax withheld	$ 3,141	0	0	3,141
Foreign currency translation adjustment	0	(4,546)	0	(4,546)
Dividends declared	0	0	(14,263)	(14,263)
Share-based compensation	1,633	0	0	1,633
Net earnings	0	0	36,299	36,299
Dividends declared	0	(0)	14,263	14,263
Net earnings	$ 0	0	36,299	$ 36,299
Balance (in shares) at Jun. 29, 2024	19,408,000			19,332,000
Balance at Jun. 29, 2024	$ 129,054	$ (12,429)	$ 821,291	$ 937,916