Audit Information	12 Months Ended
Audit Information	Dec. 31, 2025
Auditor [Table]
Auditor Name	WithumSmith+Brown, PC
Auditor Firm ID	100
Auditor Location	New York, New York
Auditor Opinion [Text Block]	Opinion on the Consolidated Financial Statements We have audited the accompanying consolidated balance sheets of SpringBig Holdings, Inc. and its subsidiaries (collectively, the “Company”) as of December 31, 2025 and 2024, the related consolidated statements of operations, changes in stockholders’ deficit and cash flows for each of the two years in the period ended December 31, 2025, and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2025 and 2024, and the results of its operations and its cash flows for each of the two years in the period ended December 31, 2025, in conformity with accounting principles generally accepted in the United States of America.

SpringBig Holdings, Inc. 10-K