| Document And Entity Information | Feb. 02, 2024 |
| Document Information [Line Items] | |
| Entity, Registrant Name | Build-A-Bear Workshop, Inc. |
| Document, Type | 8-K |
| Document, Period End Date | Feb. 02, 2024 |
| Entity, Incorporation, State or Country Code | DE |
| Entity, File Number | 001-32320 |
| Entity, Tax Identification Number | 43-1883836 |
| Entity, Address, Address Line One | 415 South 18th St |
| Entity, Address, City or Town | St. Louis |
| Entity, Address, State or Province | MO |
| Entity, Address, Postal Zip Code | 63103 |
| City Area Code | 314 |
| Local Phone Number | 423-8000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | BBW |
| Security Exchange Name | NYSE |
| Entity, Emerging Growth Company | false |
| Amendment Flag | false |
| Entity, Central Index Key | 0001113809 |
