| Cover | Dec. 09, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 9, 2020 |
| Entity File Number | 001-38555 |
| Entity Registrant Name | Lovesac Co |
| Entity Central Index Key | 0001701758 |
| Entity Tax Identification Number | 32-0514958 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | Two Landmark Square |
| Entity Address, Address Line Two | Suite 300 |
| Entity Address, City or Town | Stamford |
| Entity Address, State or Province | CT |
| Entity Address, Postal Zip Code | 06901 |
| City Area Code | (888) |
| Local Phone Number | 636-1223 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $0.00001 per share |
| Trading Symbol | LOVE |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
