COVER - shares	3 Months Ended
	Mar. 31, 2023	May 03, 2023
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Document Transition Report	false
Entity File Number	001-40049
Entity Registrant Name	SPRINGBIG HOLDINGS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	88-2789488
Entity Address, Address Line One	621 NW 53rd Street
Entity Address, Address Line Two	Ste. 260
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
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		26,940,841
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Entity Central Index Key	0001801602
Current Fiscal Year End Date	--12-31
Class A common stock
Document Information [Line Items]
Title of 12(b) Security	Common stock, par value $0.0001 per share
Trading Symbol	SBIG
Security Exchange Name	NASDAQ
Shares subject to warrants stock conversion
Document Information [Line Items]
Title of 12(b) Security	Warrants, each exercisable for one share of Common Stock, at an exercise price of $11.50 per share
Trading Symbol	SBIGW
Security Exchange Name	NASDAQ