Segment Reporting (Details) $ in Thousands	3 Months Ended		6 Months Ended
Segment Reporting (Details) $ in Thousands	Jun. 28, 2025 USD ($)	Jun. 29, 2024 USD ($)	Jun. 28, 2025 USD ($) segment	Jun. 29, 2024 USD ($)
Segment Reporting
Total net sales	$ 1,218,796	$ 1,185,719	$ 2,419,572	$ 2,368,670
Income from operations	31,937	32,489	54,972	59,852
Other income (expense)	(2,163)	(407)	(1,805)	(1,808)
Investment income (loss) and interest expense	5,294	4,062	9,705	9,613
Provision for income taxes	8,541	9,885	15,868	18,233
Net income	26,526	26,259	47,004	49,424
Depreciation and amortization expense			60,218	55,353
Net sales
Segment Reporting
Total net sales	1,214,479	1,181,456	2,411,284	2,360,370
Service [Member]
Segment Reporting
Total net sales	4,317	4,263	8,288	8,300
Retail Segment [Member]
Segment Reporting
Total net sales	1,218,796	1,185,719	2,419,572	2,368,670
Cost of sales - stores	890,344	865,741	1,770,945	1,734,044
Labor - stores	110,789	106,934	219,595	212,127
Depreciation and amortization - stores	23,574	22,405	46,800	44,369
Occupancy - stores	21,893	21,155	44,281	42,808
All other expense - stores	79,897	77,412	159,962	155,336
Administration, manufacturing, and property management expense	30,969	33,520	63,726	66,300
Distribution and transportation	29,393	26,063	59,291	53,834
Income from operations	31,937	32,489	54,972	59,852
Other income (expense)	(2,163)	(407)	(1,805)	(1,808)
Investment income (loss) and interest expense	5,294	4,062	9,705	9,613
Provision for income taxes	8,541	9,885	15,868	18,233
Net income	$ 26,526	$ 26,259	$ 47,004	$ 49,424
Segment Reporting, Other Segment Item, Composition, Description	All other expense consists of all other store controllable and fixed expenses, such as financial services fees, utilities, and outside services.	All other expense consists of all other store controllable and fixed expenses, such as financial services fees, utilities, and outside services.	All other expense consists of all other store controllable and fixed expenses, such as financial services fees, utilities, and outside services.	All other expense consists of all other store controllable and fixed expenses, such as financial services fees, utilities, and outside services.
Depreciation and amortization expense	$ 30,600	$ 27,900	$ 60,200	$ 55,300
Segment additions of long-lived assets	55,100	30,000	$ 91,200	65,600
Operating segment \| segment			1
Retail Segment [Member] \| Net sales
Segment Reporting
Total net sales	1,214,479	1,181,456	$ 2,411,284	2,360,370
Retail Segment [Member] \| Service [Member]
Segment Reporting
Total net sales	$ 4,317	$ 4,263	$ 8,288	$ 8,300

WEIS MARKETS INC 10-Q