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Condensed Consolidated Statement of Changes in Equity (Unaudited) - 6 months ended Jun. 30, 2015 - 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, 2014	$ 272	$ 97,607	$ 1,641	$ (86,592)	$ (3,036)	$ (212)	$ 9,680	$ (3,287)	$ 6,393
Balances, shares at Dec. 31, 2014	27,278
Net loss				$ (5,918)			(5,918)	(192)	(6,110)
Differences from translation of subsidiaries' financial statements						$ 5	5	$ 13	18
Stock option compensation		$ 376					$ 376		376
Stock option compensation of subsidiaries								$ 7	7
Balances at Jun. 30, 2015	$ 272	$ 97,983	$ 1,641	$ (92,510)	$ (3,036)	$ (207)	$ 4,143	$ (3,459)	$ 684
Balances, shares at Jun. 30, 2015	27,278

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