N-2	12 Months Ended
	Dec. 30, 2023
Cover [Abstract]
Entity Central Index Key	0000105418
Amendment Flag	false
Securities Act File Number	1-5039
Document Type	10-K
Entity Registrant Name	WEIS MARKETS, INC
Entity Address, Address Line One	1000 S. Second Street
Entity Address, Address Line Two	P. O. Box 471
Entity Address, City or Town	Sunbury
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	17801-0471
City Area Code	570
Local Phone Number	286-4571
Entity Well-known Seasoned Issuer	No
Entity Emerging Growth Company	false