| Cover | Nov. 13, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 13, 2024 |
| Entity File Number | 001-40049 |
| Entity Registrant Name | SPRINGBIG HOLDINGS, INC. |
| Entity Central Index Key | 0001801602 |
| Entity Tax Identification Number | 88-2789488 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 621 NW 53rd Street |
| Entity Address, Address Line Two | Ste. 500 |
| Entity Address, City or Town | Boca Raton |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 33487 |
| City Area Code | 800 |
| Local Phone Number | 772-9172 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
