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Condensed Consolidated Statement of Changes In Equity (Unaudited) - 6 months ended Jun. 30, 2017 - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Warrants [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]	Total Acorn Energy, Inc. Shareholders' Equity [Member]	Non-Controlling Interests [Member]	Total
Balances at Dec. 31, 2016	$ 301	$ 99,767	$ 1,600	$ (97,046)	$ (3,036)	$ (254)	$ 1,332	$ 555	$ 1,887
Balances, shares at Dec. 31, 2016	30,125,000
Net loss				(711)			(711)	(85)	(796)
Accrued dividend in OmniMetrix preferred shares								(50)	(50)
Shares granted in lieu of director fees	$ 1	15					16		16
Shares granted in lieu of director fees, shares	88,000
Stock option compensation		18					18		18
Balances at Jun. 30, 2017	$ 302	$ 99,800	$ 1,600	$ (97,757)	$ (3,036)	$ (254)	$ 655	$ 420	$ 1,075
Balances, shares at Jun. 30, 2017	30,213,000

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