Condensed Consolidated Statement of Changes In Equity (Unaudited) - 9 months ended Sep. 30, 2016 - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Warrants [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total Acorn Energy, Inc. Shareholders' Equity [Member]	Non-Controlling Interests [Member]	Total
Balances at Dec. 31, 2015	$ 281	$ 98,977	$ 1,597	$ (97,191)	$ (3,036)	$ (262)	$ 366	$ 1,292	$ 1,658
Balances, shares at Dec. 31, 2015	28,128
Net income				113			113	(206)	(93)
Differences from translation of subsidiaries' financial statements						8	8	(2)	6
Conversion of loan to Common Stock	$ 5	110					115		115
Conversion of loan to Common Stock, shares	466
Shares issued in connection with loan from Leap Tide	$ 15	352					367		367
Shares issued in connection with loan from Leap Tide, shares	1,531
Deconsolidation of DSIT		242					242	(371)	(129)
Accrued dividend in OmniMetrix preferred shares								(75)	(75)
Warrants issued		(3)	3
Stock option compensation		243					243		243
Balances at Sep. 30, 2016	$ 301	$ 99,921	$ 1,600	$ (97,078)	$ (3,036)	$ (254)	$ 1,454	$ 638	$ 2,092
Balances, shares at Sep. 30, 2016	30,125