v3.26.1
Cover
Aug. 17, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Aug. 17, 2026
Entity File Number 001-33886
Entity Registrant Name ACORN ENERGY, INC.
Entity Central Index Key 0000880984
Entity Tax Identification Number 22-2786081
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 4295 Hamilton Mill Road
Entity Address, Address Line Two Suite 100
Entity Address, City or Town Buford
Entity Address, State or Province GA
Entity Address, Postal Zip Code 30518
City Area Code 770
Local Phone Number 209-0012
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.01 par value per share
Trading Symbol ACFN
Security Exchange Name NASDAQ
Entity Emerging Growth Company false