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Consolidated Statements of Changes in Equity - 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 Interest [Member] | Total
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balances at Dec. 31, 2013 | $ 229 |  | $ 93,943 |  | $ 526 | $ (59,447) | $ (3,036) | $ 184 | $ 32,399 | $ (887) | $ 31,512
Balances, shares at Dec. 31, 2013 | 22,958,000 |  |  |  |  |  |  |  |  |  |
Net loss |  |  |  |  |  | $ (27,145) |  |  | (27,145) | (2,454) | (29,599)
Differences from translation of subsidiaries' financial statements |  |  |  |  |  |  |  | $ (396) | (396) | $ (27) | (423)
Capital raise net of transaction costs (see Note 15(c)) | $ 43 |  | $ 3,964 |  |  |  |  |  | $ 4,007 |  | $ 4,007
Capital raise net of transaction costs (see Note 15(c)), shares | 4,286,000 |  |  |  |  |  |  |  |  |  |
Warrants issued in capital raise (see Notes 15(c) and 15(h)) |  |  | (1,115) |  | $ 1,115 |  |  |  |  |  |
Insufficient authorized shares following capital raise (see Note 15(a)) |  |  | (50) |  |  |  |  |  | $ (50) |  | $ (50)
Stock option compensation |  |  | $ 865 |  |  |  |  |  | $ 865 |  | 865
Stock option compensation of subsidiaries |  |  |  |  |  |  |  |  |  | $ 81 | $ 81
Exercise of options and warrants |  | [1] |  | [1] |  |  |  |  |  |  |
Exercise of options and warrants, shares | 34,000 |  |  |  |  |  |  |  |  |  |
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 | 27,278,000 |  |  |  |  |  |  |  |  |  |
Net loss |  |  |  |  |  | $ (10,599) |  |  | (10,599) | (203) | (10,802)
Differences from translation of subsidiaries' financial statements |  |  |  |  |  |  |  | $ (50) | (50) | 14 | (36)
Deconsolidation of USSI (see Note 4) |  |  | $ 541 |  |  |  |  |  | $ 541 | $ 3,700 | $ 4,241
Expiration of warrants |  |  | 44 |  | $ (44) |  |  |  |  |  |
Initial shares in Leap Tide transaction (see Note 3(b)) | $ 9 |  | 153 |  |  |  |  |  | $ 162 |  | $ 162
Initial shares in Leap Tide transaction (see Note 3(b)), shares | 850,000 |  |  |  |  |  |  |  |  |  |
Stock option compensation |  |  | $ 582 |  |  |  |  |  | $ 582 |  | 582
Stock option compensation of subsidiaries |  |  |  |  |  |  |  |  |  | $ 83 | 83
Reversal of adjustment for insufficient authorized shares (see Note 22) |  |  | $ 50 |  |  |  |  |  | $ 50 |  | 50
Investment in OmniMetrix preferred shares |  |  |  |  |  |  |  |  |  | $ 1,000 | 1,000
Accrued dividend in OmniMetrix preferred shares |  |  |  |  |  |  |  |  |  | (15) | (15)
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 | 28,128,000 |  |  |  |  |  |  |  |  |  |
[1] | * Less than $1

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