Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Revenue		$ 2,132	$ 1,749
COGS		541	433
Gross profit		1,591	1,316
Operating expenses:
Research and development expenses (R&D)		238	214
Selling, general and administrative (SG&A) expenses		1,275	1,197
Total operating expenses		1,513	1,411
Operating income (loss)		78	(95)
Interest income, net		15	11
Income (loss) before income taxes		93	(84)
Income tax expense		25
Net income (loss)		68	(84)
Non-controlling interest share of income		(3)	(1)
Net income (loss) attributable to Acorn Energy, Inc. stockholders		$ 65	$ (85)
Basic and diluted net income (loss) per share attributable to Acorn Energy, Inc. stockholders:
Net income (loss) per share -basic	[1]	$ 0.03	$ (0.03)
Net income (loss) per share -diluted	[1]	$ 0.03	$ (0.03)
Weighted average number of shares outstanding attributable to Acorn Energy, Inc. stockholders – basic and diluted:
Basic	[1]	2,486	2,483
Diluted	[1]	2,494	2,483

[1] As adjusted to reflect the September 2023 1-for-16 reverse stock split.