Document and Entity Information
Jan. 13, 2022
Cover [Abstract]  
Entity Registrant Name The Boston Beer Company, Inc.
Document Type 8-K
Amendment Flag false
Entity Central Index Key 0000949870
Document Period End Date Jan. 13, 2022
Entity Emerging Growth Company false
Entity File Number 001-14092
Entity Incorporation State or Country Code MA
Entity Tax Identification Number 04-3284048
Entity Address, Address Line One One Design Center Place
Entity Address, Address Line Two Suite 850
Entity Address, City or Town Boston
Entity Address, State or Province MA
Entity Address, Postal Zip Code 02210
City Area Code 617
Local Phone Number 368-5000
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Class A Common Stock
Trading Symbol SAM
Security Exchange Name NYSE