Acorn Energy (ACFN) 10-Q 14 Aug 15 2015 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Aug. 13, 2015
Document And Entity Information
Entity Registrant Name	ACORN ENERGY, INC.
Entity Central Index Key	880,984
Document Type	10-Q
Document Period End Date	Jun. 30, 2015
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		27,325,591
Trading Symbol	ACFN
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2,015

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 896	$ 4,821
Restricted deposits	4,957	467
Accounts receivable, net of provisions for doubtful accounts of $143 and $41 at December 31, 2014 and June 30, 2015, respectively	4,036	4,902
Unbilled revenue	7,367	7,890
Inventory	1,209	1,374
Other current assets	1,789	1,813
Current assets - discontinued operations	4	143
Total current assets	20,258	21,410
Property and equipment, net	1,078	1,080
Severance assets	3,537	3,256
Restricted deposits	2,991	650
Intangible assets, net	753	1,211
Goodwill	535	1,031
Other assets	803	905
Total assets	29,955	29,543
Current liabilities:
Short-term bank credit and current maturities of long-term debt	3,642	4,419
Accounts payable	3,440	2,187
Accrued payroll, payroll taxes and social benefits	1,764	1,584
Deferred revenue	6,895	1,634
Other current liabilities	3,286	3,028
Current liabilities - discontinued operations	4,405	4,693
Total current liabilities	23,432	17,545
Long-term liabilities:
Accrued severance	4,941	4,594
Other long-term liabilities	898	1,011
Total long-term liabilities	5,839	5,605
Equity:
Acorn Energy, Inc. shareholders Common stock - $0.01 par value per share: Authorized - 30,000,000 shares; Issued - 27,277,511 shares at December 31, 2014 and June 30, 2015	272	272
Additional paid-in capital	97,983	97,607
Warrants	1,641	1,641
Accumulated deficit	(92,510)	(86,592)
Treasury stock, at cost - 801,920 shares at December 31, 2014 and June 30, 2015	(3,036)	(3,036)
Accumulated other comprehensive loss	(207)	(212)
Total Acorn Energy, Inc. shareholders' equity	4,143	9,680
Non-controlling interests	(3,459)	(3,287)
Total equity	684	6,393
Total liabilities and equity	$ 29,955	$ 29,543

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Accounts receivable, net of provisions for doubtful accounts	$ 41	$ 143
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	27,277,511	27,277,511
Treasury stock, shares	801,920	801,920

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues:
Projects	$ 3,338	$ 2,654	$ 6,304	$ 5,446
Products	930	1,563	2,063	2,766
Services	539	506	1,058	965
Total revenues	4,807	4,723	9,425	9,177
Cost of sales:
Projects	2,073	2,166	4,252	4,126
Products	947	1,163	1,747	2,114
Services	122	118	242	231
Total cost of sales	3,142	3,447	6,241	6,471
Gross profit	1,665	1,276	3,184	2,706
Operating expenses:
Research and development expenses, net of credits	636	731	1,201	1,458
Selling, general and administrative expenses	2,998	$ 3,126	5,779	$ 6,444
Impairments	$ 850		$ 850
Provision for loss - channel partner		$ 649		$ 649
Restructuring and related charges		198		198
Total operating expenses	$ 4,484	4,704	$ 7,830	8,749
Operating loss	(2,819)	(3,428)	(4,646)	(6,043)
Finance expense, net	(106)	(87)	(94)	(146)
Loss before income taxes	(2,925)	(3,515)	(4,740)	(6,189)
Income tax benefit (expense)	(22)	(168)	11	(113)
Net loss from continuing operations	(2,947)	(3,683)	(4,729)	(6,302)
Loss from discontinued operations, net of income taxes	(229)	(2,238)	(1,381)	(4,194)
Net loss	(3,176)	(5,921)	(6,110)	(10,496)
Non-controlling interest share of net (income) loss - continuing operations	(4)	113	17	138
Non-controlling interest share of net loss - discontinued operations	31	281	175	527
Net loss attributable to Acorn Energy, Inc. shareholders	$ (3,149)	$ (5,527)	$ (5,918)	$ (9,831)
Basic and diluted net loss per share attributable to Acorn Energy, Inc. shareholders:
Continuing operations	$ (0.11)	$ (0.16)	$ (0.18)	$ (0.28)
Discontinued operations	(0.01)	(0.09)	(0.04)	(0.16)
Total attributable to Acorn Energy, Inc. shareholders	$ (0.12)	$ (0.25)	$ (0.22)	$ (0.44)
Weighted average number of shares outstanding attributable to Acorn Energy, Inc. shareholders - basic and diluted	26,476	22,190	26,476	22,180

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Condensed Consolidated Statements Of Comprehensive Loss
Net loss attributable to Acorn Energy, Inc. shareholders	$ (3,149)	$ (5,527)	$ (5,918)	$ (9,831)
Other comprehensive income (loss):
Foreign currency translation adjustments	86	88	18	166
Comprehensive loss	(3,063)	(5,439)	(5,900)	$ (9,665)
Comprehensive income attributable to non-controlling interests	(11)	(2)	(13)
Comprehensive loss attributable to Acorn Energy, Inc. shareholders	$ (3,074)	$ (5,441)	$ (5,913)	$ (9,665)

Condensed Consolidated Stateme6

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

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows provided by (used in) operating activities:
Net loss	$ (6,110)	$ (10,496)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities (see Schedule A)	11,725	7,432
Net cash provided by (used in) operating activities - continuing operations	5,615	(3,064)
Net cash used in operating activities - discontinued operations	(1,575)	(5,372)
Net cash provided by (used in) operating activities	4,040	(8,436)
Cash flows provided by (used in) investing activities:
Acquisitions of property and equipment	$ (101)	(245)
Loan to channel partner		(640)
Restricted deposits	$ (6,950)	(650)
Release of restricted deposits	126	96
Amounts funded for severance assets	(188)	(129)
Net cash used in investing activities - continuing operations	$ (7,113)	(1,568)
Net cash used in investing activities - discontinued operations		(171)
Net cash used in investing activities	$ (7,113)	(1,739)
Cash flows provided by (used in) financing activities:
Short-term bank credit, net	(781)	$ 838
Repayments of long-term debt	(64)
Net cash provided by (used in) financing activities - continuing operations	$ (845)	$ 838
Net cash provided by financing activities - discontinued operations		300
Net cash provided by financing activities	$ (845)	1,138
Effect of exchange rate changes on cash and cash equivalents	(55)	26
Net decrease in cash and cash equivalents	(3,973)	(9,011)
Cash and cash equivalents at the beginning of the year - discontinued operations	52	748
Cash and cash equivalents at the beginning of the year - continuing operations	4,821	16,531
Cash and cash equivalents at the end of the period - discontinued operations	4	9
Cash and cash equivalents at the end of the period - continuing operations	896	8,259
A. Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Loss from discontinued operations	1,381	4,194
Depreciation and amortization	261	$ 337
Impairments	850
Write-off of inventory	$ 44	$ 101
Provision for loss - channel partner		649
Increase in accrued severance	$ 203	147
Stock-based compensation	377	557
Deferred taxes	3	103
Other	50	10
Change in operating assets and liabilities:
Decrease in accounts receivable, unbilled revenue, other current and other assets	1,371	1,922
Decrease in inventory	116	77
Increase (decrease) in deferred revenues	5,261	(856)
Increase in accounts payable, accrued payroll, payroll taxes and social benefits, other current liabilities and other liabilities	1,808	191
Adjustments to reconcile net loss to net cash provided by (used in) operating activities, total	$ 11,725	$ 7,432

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2015
Accounting Policies [Abstract]
Basis of Presentation	NOTE 1—BASIS OF PRESENTATION The accompanying unaudited condensed consolidated financial statements of Acorn Energy, Inc. and its subsidiaries (the “Company”) have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions to Article 8 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete consolidated financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation have been included. Operating results for the six month period ended June 30, 2015 are not necessarily indicative of the results that may be expected for the year ending December 31, 2015. All dollar amounts in the notes to the condensed consolidated financial statements are in thousands except for per share data. Certain reclassifications have been made to the Company’s condensed consolidated financial statements for the three and six month periods ended June 30, 2014 to conform to the current period’s condensed consolidated financial statement presentation. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

Recent Authoritative Guidance

Recent Authoritative Guidance	6 Months Ended
	Jun. 30, 2015
Accounting Changes and Error Corrections [Abstract]
Recent Authoritative Guidance	NOTE 2—RECENT AUTHORITATIVE GUIDANCE There have been no recent accounting pronouncements or changes in accounting pronouncements during the six months ended June 30, 2015, that are of material significance, or have potential material significance, to the Company.

Liquidity

Liquidity	6 Months Ended
	Jun. 30, 2015
Liquidity
Liquidity	NOTE 3—LIQUIDITY The Company believes that it will have sufficient liquidity to finance its activities and the activities of GridSense and OmniMetrix over at least the next 12 months based upon its current cash balance, the support expected to be provided by DSIT and the funds provided by its recent financing (see Note 12 – Subsequent Events). If the support expected to be provided by DSIT (up to $5,000 in 2015) is not available in sufficient amounts, Acorn may not be able to fund its own corporate activities and Acorn may not be able to fund GridSense and OmniMetrix as it has historically which could materially impact the carrying value of these subsidiaries and the Company’s ability to continue operations. Through June 30, 2015, DSIT has lent Acorn $500 in 2015. At June 30, 2015, DSIT was not in compliance with one of its financial covenants following the receipt of the $6,168 down payment from its recently received $15,420 order. The bank is working with DSIT to reformulate this covenant to take this into account. See Note 12 for additional developments with respect to the Company’s liquidity.

Repayment of Gridsense Loan

Repayment of Gridsense Loan	6 Months Ended
	Jun. 30, 2015
Debt Disclosure [Abstract]
Repayment of Gridsense Loan	NOTE 4—REPAYMENT OF GRIDSENSE LOAN The Company’s GridSense subsidiary is a party to a Loan and Security Agreement with Square 1 Bank (the “Bank”) dated as of November 2, 2012, as amended from time to time (the “Loan Agreement”) and a related Financing Agreement (the “Financing Agreement”). The obligations of GridSense to the Bank under the Loan Agreement are guaranteed by the Company. On April 13, 2015, the Company received notice stating that the Company had failed to maintain compliance with covenants thereby creating an event of default under the Loan Agreement and under the Financing Agreement and declaring all obligations of GridSense owing under the Loan Agreement and the Financing Agreement to be immediately due and payable. As of the date of the notice, GridSense owed approximately $1,480 and $158 under the Loan Agreement and the Financing Agreement, respectively. Effective as of April 30, 2015, GridSense and the Bank entered into an amendment to the Loan Agreement pursuant to which (i) the Bank waived events of default under the Loan Agreement and Financing Agreement, (ii) GridSense paid $500 to the Bank in reduction of its obligations under the Loan Agreement, (iii) the Company deposited $250 on May 4, 2015 and $250 on May 14, 2015 into a restricted account (the “Restricted Account”) at the Bank to secure the Company’s guaranty of GridSense’s obligations under the Loan Agreement and agreed to make an additional deposit into the Restricted Account of $250 by July 31, 2015, (iv) GridSense agreed to the repayment, commencing September 1, 2015, of an aggregate of $250 of advances under the Loan Agreement in equal monthly installments through May 1, 2016, and (v) the Company is required to have an unrestricted cash balance equal to no less than the amount of all obligations of GridSense to the Bank which are not secured by the Restricted Account. As at June 30, 2015, the Company had deposited a total of $500 into the Restricted Account (see Note 10) and GridSense owed $980 to the Bank under the Loan Agreement. See Note 12 (Subsequent Events) with respect to developments regarding the Loan Agreement and Restricted Account.

Discontinued Operations

Discontinued Operations	6 Months Ended
	Jun. 30, 2015
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	NOTE 5— Discontinued Operations In early 2015, the Company’s Board of Directors decided that it would no longer continue to fund USSI’s activities following the significant decline in oil prices which led to significantly reduced demand for USSI’s products. USSI has suspended operations and terminated substantially all employees. The Company intends to sell its USSI assets and is exploring ways to maximize value for creditors and other stakeholders, expecting that most of the proceeds from any sale of its assets will be used to pay creditors. It is uncertain whether there will be any proceeds available to Acorn Energy or other USSI shareholders. Assets and liabilities related to the discontinued operations of USSI are as follows: As of December 31, 2014 June 30, 2015 Cash and cash equivalents $ 52 $ 4 Other current assets 91 — Total assets $ 143 $ 4 Short-term bank credit $ 1,460 $ 1,460 Accounts payable 1,006 1,024 Accrued payroll, payroll taxes and social benefits 346 136 Other current liabilities 1,881 1,785 Total liabilities $ 4,693 $ 4,405 USSI has granted a lien to its bank on substantially all of its assets including intellectual property. The debt due to the bank under USSI’s line-of-credit ($1,460) has matured, is currently due and is bearing interest at the default rate of 11.5% per annum. The Company has not guaranteed the line-of-credit. USSI’s losses for the three and six months ended June 30, 2014 and 2015 are included in “Loss from discontinued operations, net of income taxes” in the Company’s Condensed Consolidated Statements of Operations. Summarized financial information for USSI’s operations for the three and six months ended June 30, 2014 and 2015 are presented below: Six months ended June 30, Three months ended June 30, 2014 2015 2014 2015 Revenues $ — $ 79 $ — $ 79 Gross profit $ (430 ) $ (86 ) $ (242 ) $ 4 Net loss $ (4,194 ) $ (1,381 ) $ (2,238 ) $ (229 ) Net loss attributable to non-controlling interests $ 527 $ 175 $ 281 $ 31 Net loss attributable to Acorn Energy Inc. $ (3,667 ) $ (1,206 ) $ (1,957 ) $ (198 )

Restructuring and Related Charg

Restructuring and Related Charges	6 Months Ended
	Jun. 30, 2015
Restructuring and Related Activities [Abstract]
Restructuring and Related Charges	NOTE 6—RESTRUCTURING AND RELATED CHARGES (a) GridSense ® In 2013 and 2014, GridSense restructured operations in both its U.S. and Australian entities. This action was taken primarily in order to improve efficiency based on GridSense’s revenue mix and skills mix. The restructurings included terminations of employees in both the United States and Australia and a shut-down of GridSense’s Australian offices in an effort to further reduce costs and streamline operations. GridSense continues to sell its current products in Australia and the surrounding areas through a network of distributors. At December 31, 2014, $38 of the costs associated with employee severance and termination benefits charge remained unpaid. During the six months ended June 30, 2015, GridSense made no additional payments. The $38 of remaining accrued restructuring charge is expected to be paid in full by June 30, 2016. The balance is included in Other current liabilities in the Company’s condensed consolidated balance sheets. (b) OmniMetrix TM In 2013, OmniMetrix restructured its operations to better align expenses with revenues following a change in management. The restructuring involved employee severance and termination benefits as well as a charge for a significant reduction in the utilization of its leased facility in Buford and a write-down of a majority of the remaining book value of leasehold improvements associated with the leased facility. At December 31, 2014, $248 of lease payments associated with the reduced utilization of leased facilities remained unpaid. During the six months ended June 30, 2015, OmniMetrix paid $22 of this liability. The total remaining accrued restructuring balance of $226 is expected to be paid in full by December 31, 2019 and is included in Other current liabilities ($44) and Other liabilities ($182) in the Company’s condensed consolidated balance sheets.

Inventory, Net

Inventory, Net	6 Months Ended
	Jun. 30, 2015
Inventory Disclosure [Abstract]
Inventory, Net	NOTE 7—INVENTORY, NET The composition of inventory is as follows: As of December 31, 2014 As of June 30, 2015 Raw materials $ 682 $ 518 Work-in-process 275 431 Finished goods 417 260 $ 1,374 $ 1,209 At December 31, 2014 and June 30, 2015, the Company’s inventory reserve was $319 and $342, respectively.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	NOTE 8—GOODWILL AND INTANGIBLE ASSETS (a) Goodwill The changes in the carrying amounts of goodwill by segment from December 31, 2014 to June 30, 2015 were as follows: Energy & Security Sonar Solutions segment Smart Grid Distribution Automation segment Total Balance at December 31, 2014 $ 518 $ 513 $ 1,031 Impairment — (513 ) (513 ) Translation adjustment 17 — 17 Balance at June 30, 2015 $ 535 $— $ 535 In the second quarter of 2015, the Company determined that the goodwill associated with its Smart Grid Distribution Automation segment (GridSense) was fully impaired as a result of below-projected revenues for the first six months of 2015 and for the balance of 2015. (b) Intangibles The changes in the carrying amounts and accumulated amortization of intangible assets from December 31, 2014 to June 30, 2015 were as follows: Cost Accumulated amortization Total Balance as of December 31, 2014 $ 2,175 $ (964 ) $ 1,211 Amortization — (93 ) (93 ) Impairment (337 ) — (337 ) Cumulative translation adjustment (62 ) 34 (28 ) Balance as of June 30, 2015 $ 1,776 $ (1,023 ) $ 753 In the second quarter of 2015, the Company’s Smart Grid Distribution Automation segment recorded an impairment charge of $337 representing an impairment of certain technologies and the value of customer relationships and trade name associated with GridSense’s historic operations in Australia. The impairment charge follows declining second quarter 2015 revenue and expected future revenues in Australia through GridSense’s distributor relationship in Australia following the fulfillment of a major order in the first quarter of 2015. The Company’s intangibles are in its Smart Grid Distribution Automation segment and include technologies, customer relationships and trade name. The weighted average estimated useful life of the intangibles is 10.7 years. Amortization expense for the six months ended June 30, 2014 and 2015 amounted to $142 and $93, respectively. Amortization expense with respect to intangible assets is estimated to be $125 for each of the years ending June 30, 2016 through 2019 and $116 for the year ending June 30, 2020.

Equity

Equity	6 Months Ended
	Jun. 30, 2015
Equity [Abstract]
Equity	NOTE 9—EQUITY (a) Acorn Stock Options A summary of stock option activity for the six months ended June 30, 2015 is as follows: Number of Options (in shares) Weighted Average Exercise Price Per Share Weighted Average Remaining Contractual Life Aggregate Intrinsic Value Outstanding at December 31, 2014 1,812,428 $ 4.51 Granted 662,654 $ 0.77 Exercised — — Forfeited or expired (95,164 ) $ 3.19 Outstanding at June 30, 2015 2,379,918 $ 3.52 5.6 years $ — Exercisable at June 30, 2015 1,322,330 $ 5.01 3.8 years $ — The fair value of the options granted ($0.52 per option during the six months ended June 30, 2015) was estimated on the grant dates using the Black-Scholes option-pricing model with the following weighted average assumptions: Risk-free interest rate 2.1 % Expected term of options 8.7 years Expected annual volatility 63 % Expected dividend yield —% (b) Stock-based Compensation Expense Stock-based compensation expense included in Selling, general and administrative expenses in the Company’s Condensed Statements of Operations for the six and month period ended June 30, 2014 and 2015 was $557 and $377, respectively and was $247 and $169 for the three month period ended June 30, 2014 and 2015, respectively. In addition, $63 and $6 was recorded in the Company’s USSI subsidiary included in Discontinued Operations for the six month periods ended June 30, 2014 and 2015, respectively and $31 and $0 for the three month periods ended June 30, 2014 and 2015, respectively - See Note 5.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurements	NOTE 10—FAIR VALUE MEASUREMENTS Financial items measured at fair value are classified in the table below in accordance with the hierarchy established in applicable accounting principles. As at June 30, 2015 Level 1 Level 2 Level 3 Total Restricted deposits – current $ 4,957 $ — $ — $ 4,957 Restricted deposits – non-current 2,991 — — 2,991 Derivative assets (liabilities) 39 — (72 ) (33 ) Total $ 7,987 $ — $ (72 ) $ 7,915 As at December 31, 2014 Level 1 Level 2 Level 3 Total Restricted deposits – current $ 467 $ — $ — $ 467 Restricted deposits – non-current 650 — — 650 Derivative assets (liabilities) 5 — (50 ) (45 ) Total $ 1,122 $ — $ (50 ) $ 1,072 Current restricted deposits are comprised of $4,457 of security deposits with respect to various performance and bank guarantees provided in the normal course of business for DSIT’s operations that are expected to be released by June 30, 2016. Current restricted deposits also include $500 deposited by Acorn in connection with the GridSense Loan (see Note 4). DSIT has also provided $2,991 of security deposits for guarantees that are expected to be released through the middle of 2018. Derivative assets are forward contracts for the purchase of New Israeli Shekels for which market prices are readily available. Unrealized gains or losses from forward contracts are recorded in Finance income (expense), net. Derivative liabilities are with respect to the fair value of the liability of stock options and warrants outstanding in excess of the Company’s authorized shares. See Note 12 (Subsequent Events) with respect to developments regarding restricted deposits.

Segment Reporting

Segment Reporting	6 Months Ended
	Jun. 30, 2015
Segment Reporting [Abstract]
Segment Reporting	NOTE 11—SEGMENT REPORTING The Company currently operates in three reportable operating segments: ● Energy & Security Sonar Solutions. The Company provides sonar and acoustic related solutions for energy, defense and commercial markets with a focus on underwater site security for strategic energy installations and other advanced acoustic systems and real-time embedded hardware and software development and production through its DSIT Solutions Ltd. (“DSIT”) subsidiary. ● Smart Grid Distribution Automation. These products and services are provided by the Company’s GridSense TM ● Machine-to-Machine Critical Asset Monitoring & Control (“M2M”). The M2M segment provides wireless remote monitoring and control systems and services for critical assets such as gas pipelines and backup generators. These activities are performed through the Company’s OmniMetrix subsidiary. Other operations include certain IT activities (protocol management software for cancer patients and billing software) and outsourced consulting activities performed by the Company’s DSIT subsidiary as well as pipeline monitoring activities in the Company’s OmniMetrix subsidiary (for remote monitoring and control of corrosion protection systems on gas pipelines for gas utilities and pipeline companies) that do not meet the quantitative thresholds under applicable accounting principles. Energy & Security Sonar Solutions Smart Grid Distribution Automation M2M Other Total Six months ended June 30, 2015 Revenues from external customers $ 5,748 $ 1,610 $ 1,113 $ 954 $ 9,425 Intersegment revenues — — — — — Segment gross profit 1,790 317 634 487 3,228 Depreciation and amortization 90 113 35 22 260 Impairments — 850 — — 850 Segment net income (loss) before income taxes (204 ) (1,893 ) (700 ) 13 (2,784 ) Six months ended June 30, 2014 Revenues from external customers $ 5,037 $ 2,209 $ 1,056 $ 875 $ 9,177 Intersegment revenues — — — — — Segment gross profit 1,145 551 564 446 2,706 Restructuring and related charges — 102 77 19 198 Depreciation and amortization 145 131 35 24 335 Segment net loss before income taxes (778 ) (1,778 ) (851 ) (60 ) (3,467 ) Three months ended June 30, 2015 Revenues from external customers $ 3,088 $ 702 $ 560 $ 457 $ 4,807 Intersegment revenues — — — — — Segment gross profit 1,185 40 294 190 1,709 Depreciation and amortization 45 56 17 11 129 Impairments — 850 — — 850 Segment net income (loss) before income taxes 90 (1,568 ) (422 ) (92 ) (1,992 ) Three months ended June 30, 2014 Revenues from external customers $ 2,522 $ 1,246 $ 548 $ 407 $ 4,723 Intersegment revenues — — — — — Segment gross profit 459 366 252 199 1,276 Restructuring and related charges — 102 77 19 198 Depreciation and amortization 74 66 18 10 168 Segment net loss before income taxes (570 ) (805 ) (448 ) (39 ) (1,862 ) Reconciliation of Segment Income (Loss) to Consolidated Net Loss Before Income Taxes Six months ended June 30, Three months ended June 30, 2014 2015 2014 2015 Total net loss before income taxes for reportable segments $ (3,407 ) $ (2,797 ) $ (1,823 ) $ (1,900 ) Other operational segment net loss before income taxes (60 ) 13 (39 ) (92 ) Total segment net loss before income taxes (3,467 ) (2,784 ) (1,862 ) (1,992 ) Unallocated cost of corporate headquarters* (1,985 ) (1,890 ) (942 ) (856 ) Provision for loss – channel partner (649 ) — (649 ) — Unallocated cost of DSIT headquarters (88 ) (66 ) (62 ) (77 ) Consolidated loss before income taxes $ (6,189 ) $ (4,740 ) $ (3,515 ) $ (2,925 ) * Includes stock compensation expense of $550 and $376 for the six month periods ended June 30, 2014 and 2015 and $240 and $168 for the three month periods ended June 30, 2014 and 2015, respectively.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2015
Subsequent Events [Abstract]
Subsequent Events	NOTE 12—SUBSEQUENT EVENTS Financing On August 13, 2015, the Company executed a Loan and Security Agreement with Leap Tide Capital Partners III, LLC (“Leap Tide”), pursuant to which the Company borrowed, on such date, $2,000 from Leap Tide (the “LT Loan”). Principal and accrued interest shall be due and payable on August 13, 2016, the first anniversary of the date of funding. Interest accrues and is payable quarterly at a rate of 10% per annum. At the closing, $100 of the proceeds were deposited into an escrow account which will be used to fund the payment of interest; the escrow account shall be maintained at not less than $50 until the last three months before maturity. In addition to the interest payable in cash described above, Leap Tide received 850,000 shares of the Company’s common stock (the “Initial Shares”) at the closing and became entitled to vested rights to receive 179,167 additional shares of the Company’s common stock (each vested right to receive one share, a “Vested Share Right”) per month for each full month that the full principal amount of the LT Loan remains outstanding, subject to immediate vesting upon acceleration of the LT Loan for the Company’s failure to timely increase its authorized shares of common stock as described below. The number of Vested Share Rights that accrue in a given month shall be prorated to the extent less than the full principal amount is outstanding and/or for any partial month in which no principal amount is outstanding. Leap Tide is entitled to receive the Company’s common stock underlying its Vested Share Rights after the expiration of the Cash Settlement Period (defined below). The Company may pre-pay all principal and interest accrued on the LT Loan at any time. In addition, the Company may on or prior to 30 days after the maturity or earlier acceleration or repayment of the LT Loan (such 30-day period being referred to herein as the “Cash Settlement Period”) repurchase any or all Initial Shares and settle any or all Vested Share Rights accrued under the LT Loan for cash in lieu of stock. The cash repurchase/settlement price shall be an amount equal to $0.30 for each Initial Share so repurchased and each Vested Share Right so settled. The Company’s right to repurchase Initial Shares and settle Vested Share Rights for cash in lieu of stock shall be subject to Lender’s right to put the same to the Company at a higher price as described below. The Company does not have sufficient authorized common stock to cover the full amount of Vested Share Rights that will accrue through maturity of the LT Loan. Failure by the Company to effectuate a charter amendment to authorize sufficient additional common stock by March 31, 2016 shall be deemed an event of default, triggering Leap Tide’s right to accelerate the LT Loan and entitling Leap Tide to put to the Company, at a price equal to $0.40 per Initial Share and Vested Share Right, any Initial Shares and any Vested Share Rights. Subject to customary permitted liens, the LT Loan is secured by a first priority lien on the assets of the Company, except that the lien on the Company’s shares of DSIT is pari passu with a preexisting lien held by DSIT to secure its loans to the Company in the principal amount of up to $5,000. DSIT and Leap Tide have entered into an intercreditor and collateral agency agreement reflecting the pari passu nature of their respective liens. Each of the Company’s domestic subsidiaries (GridSense, OMX Holdings, Inc. and OmniMetrix) have guaranteed the repayment of the LT Loan, and GridSense and OmniMetrix have pledged their respective IP as security. Certain members of the management of the Company's DSIT Solutions subsidiary (including its CEO and its CFO--who also serves as CFO of the Company) have invested in Leap Tide (which is a special entity formed to make the loan) on the same terms as the other investors in Leap Tide. None of these persons has any role in the management of Leap Tide. GridSense Loan Under the latest amendment to the Loan Agreement (Note 4), the Company was required to make a $250 payment to the Restricted Account by July 31, 2015. The Bank agreed to delay this required payment until the Company completed its recent financing (see above). Following the completion of the financing, the Company paid $480 to the Bank and applied the $500 in current restricted deposits (see Note 10) to the outstanding debt to the Bank in full satisfaction of amounts due under the Loan Agreement.

Discontinued Operations (Tables

Discontinued Operations (Tables)	6 Months Ended
	Jun. 30, 2015
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Assets and Liabilities Related to Discontinued Operations	Assets and liabilities related to the discontinued operations of USSI are as follows: As of December 31, 2014 June 30, 2015 Cash and cash equivalents $ 52 $ 4 Other current assets 91 — Total assets $ 143 $ 4 Short-term bank credit $ 1,460 $ 1,460 Accounts payable 1,006 1,024 Accrued payroll, payroll taxes and social benefits 346 136 Other current liabilities 1,881 1,785 Total liabilities $ 4,693 $ 4,405
Schedule of Financial Information	Summarized financial information for USSI’s operations for the three and six months ended June 30, 2014 and 2015 are presented below: Six months ended June 30, Three months ended June 30, 2014 2015 2014 2015 Revenues $ — $ 79 $ — $ 79 Gross profit $ (430 ) $ (86 ) $ (242 ) $ 4 Net loss $ (4,194 ) $ (1,381 ) $ (2,238 ) $ (229 ) Net loss attributable to non-controlling interests $ 527 $ 175 $ 281 $ 31 Net loss attributable to Acorn Energy Inc. $ (3,667 ) $ (1,206 ) $ (1,957 ) $ (198 )

Inventory, Net (Tables)

Inventory, Net (Tables)	6 Months Ended
	Jun. 30, 2015
Inventory Disclosure [Abstract]
Schedule of Inventory	The composition of inventory is as follows: As of December 31, 2014 As of June 30, 2015 Raw materials $ 682 $ 518 Work-in-process 275 431 Finished goods 417 260 $ 1,374 $ 1,209

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Changes in Carrying Amounts of Goodwill by Segment	The changes in the carrying amounts of goodwill by segment from December 31, 2014 to June 30, 2015 were as follows: Energy & Security Sonar Solutions segment Smart Grid Distribution Automation segment Total Balance at December 31, 2014 $ 518 $ 513 $ 1,031 Impairment — (513 ) (513 ) Translation adjustment 17 — 17 Balance at June 30, 2015 $ 535 $— $ 535
Schedule of Changes in Carrying Amounts and Accumulated Amortization of Intangible Assets	The changes in the carrying amounts and accumulated amortization of intangible assets from December 31, 2014 to June 30, 2015 were as follows: Cost Accumulated amortization Total Balance as of December 31, 2014 $ 2,175 $ (964 ) $ 1,211 Amortization — (93 ) (93 ) Impairment (337 ) — (337 ) Cumulative translation adjustment (62 ) 34 (28 ) Balance as of June 30, 2015 $ 1,776 $ (1,023 ) $ 753

Equity (Tables)

Equity (Tables)	6 Months Ended
	Jun. 30, 2015
Equity [Abstract]
Summary of Stock Option Activity	A summary of stock option activity for the six months ended June 30, 2015 is as follows: Number of Options (in shares) Weighted Average Exercise Price Per Share Weighted Average Remaining Contractual Life Aggregate Intrinsic Value Outstanding at December 31, 2014 1,812,428 $ 4.51 Granted 662,654 $ 0.77 Exercised — — Forfeited or expired (95,164 ) $ 3.19 Outstanding at June 30, 2015 2,379,918 $ 3.52 5.6 years $ — Exercisable at June 30, 2015 1,322,330 $ 5.01 3.8 years $ —
Schedule of Fair Value Assumptions Estimated Using Black-Scholes Pricing Model	The fair value of the options granted ($0.52 per option during the six months ended June 30, 2015) was estimated on the grant dates using the Black-Scholes option-pricing model with the following weighted average assumptions: Risk-free interest rate 2.1 % Expected term of options 8.7 years Expected annual volatility 63 % Expected dividend yield —%

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Schedule of Fair Value Measurements	Financial items measured at fair value are classified in the table below in accordance with the hierarchy established in applicable accounting principles. As at June 30, 2015 Level 1 Level 2 Level 3 Total Restricted deposits – current $ 4,957 $ — $ — $ 4,957 Restricted deposits – non-current 2,991 — — 2,991 Derivative assets (liabilities) 39 — (72 ) (33 ) Total $ 7,987 $ — $ (72 ) $ 7,915 As at December 31, 2014 Level 1 Level 2 Level 3 Total Restricted deposits – current $ 467 $ — $ — $ 467 Restricted deposits – non-current 650 — — 650 Derivative assets (liabilities) 5 — (50 ) (45 ) Total $ 1,122 $ — $ (50 ) $ 1,072

Segment Reporting (Tables)

Segment Reporting (Tables)	6 Months Ended
	Jun. 30, 2015
Segment Reporting [Abstract]
Summary of Segmented Data	Energy & Security Sonar Solutions Smart Grid Distribution Automation M2M Other Total Six months ended June 30, 2015 Revenues from external customers $ 5,748 $ 1,610 $ 1,113 $ 954 $ 9,425 Intersegment revenues — — — — — Segment gross profit 1,790 317 634 487 3,228 Depreciation and amortization 90 113 35 22 260 Impairments — 850 — — 850 Segment net income (loss) before income taxes (204 ) (1,893 ) (700 ) 13 (2,784 ) Six months ended June 30, 2014 Revenues from external customers $ 5,037 $ 2,209 $ 1,056 $ 875 $ 9,177 Intersegment revenues — — — — — Segment gross profit 1,145 551 564 446 2,706 Restructuring and related charges — 102 77 19 198 Depreciation and amortization 145 131 35 24 335 Segment net loss before income taxes (778 ) (1,778 ) (851 ) (60 ) (3,467 ) Three months ended June 30, 2015 Revenues from external customers $ 3,088 $ 702 $ 560 $ 457 $ 4,807 Intersegment revenues — — — — — Segment gross profit 1,185 40 294 190 1,709 Depreciation and amortization 45 56 17 11 129 Impairments — 850 — — 850 Segment net income (loss) before income taxes 90 (1,568 ) (422 ) (92 ) (1,992 ) Three months ended June 30, 2014 Revenues from external customers $ 2,522 $ 1,246 $ 548 $ 407 $ 4,723 Intersegment revenues — — — — — Segment gross profit 459 366 252 199 1,276 Restructuring and related charges — 102 77 19 198 Depreciation and amortization 74 66 18 10 168 Segment net loss before income taxes (570 ) (805 ) (448 ) (39 ) (1,862 )
Schedule of Reconciliation of Segment Data to Consolidated Statement of Operations	Reconciliation of Segment Income (Loss) to Consolidated Net Loss Before Income Taxes Six months ended June 30, Three months ended June 30, 2014 2015 2014 2015 Total net loss before income taxes for reportable segments $ (3,407 ) $ (2,797 ) $ (1,823 ) $ (1,900 ) Other operational segment net loss before income taxes (60 ) 13 (39 ) (92 ) Total segment net loss before income taxes (3,467 ) (2,784 ) (1,862 ) (1,992 ) Unallocated cost of corporate headquarters* (1,985 ) (1,890 ) (942 ) (856 ) Provision for loss – channel partner (649 ) — (649 ) — Unallocated cost of DSIT headquarters (88 ) (66 ) (62 ) (77 ) Consolidated loss before income taxes $ (6,189 ) $ (4,740 ) $ (3,515 ) $ (2,925 ) * Includes stock compensation expense of $550 and $376 for the six month periods ended June 30, 2014 and 2015 and $240 and $168 for the three month periods ended June 30, 2014 and 2015, respectively.

Liquidity (Details Narrative)

Liquidity (Details Narrative) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Expected cash balance	$ 896	$ 4,821
DSIT Solutions, Ltd. [Member]
Cash lent from related party	$ 500
Non compliance of financial covenants	DSIT was not in compliance with one of its financial covenants following the receipt of the $6,168 down payment from its recently received $15,420 million order. The bank is working with DSIT to reformulate this covenant to take this into account.
Down payment received	$ 6,168
Order received	15,420
DSIT Solutions, Ltd. [Member] | Maximum [Member]
Expected cash balance	$ 5,000

Repayment of Gridsense Loan (De

Repayment of Gridsense Loan (Details Narrative) - USD ($) $ in Thousands	Apr. 30, 2015	Jun. 30, 2015	May. 14, 2015	May. 04, 2015	Apr. 13, 2015
Deposit into restricted account		$ 500
GridSense [Member] | Loan Agreement [Member]
Value owed by GridSense					$ 1,480
Repayment of debt	$ 500
Deposit into restricted account			$ 250	$ 250
Owned to the bank under loan agreement		980
GridSense [Member] | Loan Agreement [Member] | July 31, 2015 [Member]
Additional deposit into restricted account		250
GridSense [Member] | Loan Agreement [Member] | September 1, 2015 [Member]
Repayment of advances in equal monthly installments		$ 250
GridSense [Member] | Financing Agreement [Member]
Value owed by GridSense					$ 158

Discontinued Operations (Detail

Discontinued Operations (Details Narrative) - Jun. 30, 2015 - USSI's [Member] - USD ($) $ in Thousands	Total
Debt due to bank	$ (1,460)
Debt interest rate	11.50%

Discontinued Operations - Sched

Discontinued Operations - Schedule of Assets and Liabilities Related to Discontinued Operations (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Cash and cash equivalents	$ 896	$ 4,821
Other current assets	1,789	1,813
Total assets	29,955	29,543
Accounts payable	3,440	2,187
Other current liabilities	3,286	3,028
USSI's [Member] | Discontinued Operations [Member]
Cash and cash equivalents	$ 4	52
Other current assets		91
Total assets	$ 4	143
Short-term bank credit	1,460	1,460
Accounts payable	1,024	1,006
Accrued payroll, payroll taxes and social benefits	136	346
Other current liabilities	1,785	1,881
Total liabilities	$ 4,405	$ 4,693

Discontinued Operations - Sch30

Discontinued Operations - Schedule of Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues	$ 4,807	$ 4,723	$ 9,425	$ 9,177
Gross profit	1,665	1,276	3,184	2,706
Net loss	(3,176)	(5,921)	(6,110)	(10,496)
Net loss attributable to Acorn Energy Inc.	(3,149)	$ (5,527)	(5,918)	$ (9,831)
USSI's [Member] | Discontinued Operations [Member]
Revenues	79		79
Gross profit	4	$ (242)	(86)	$ (430)
Net loss	(229)	(2,238)	(1,381)	(4,194)
Net loss attributable to non-controlling interests	31	281	175	527
Net loss attributable to Acorn Energy Inc.	$ (198)	$ (1,957)	$ (1,206)	$ (3,667)

Restructuring and Related Cha31

Restructuring and Related Charges (Details Narrative) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
GridSense [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs		$ 38
Restructuring charges payable	$ 38
OmniMetrix [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges payable	226
Payment of lease cost	$ 22	$ 248
Expected to be paid restructuring cost date	Dec. 31, 2019
Restructuring charges included in other current liabilities	$ (44)
Restructuring charges included in other liabilities	$ (182)

Inventory, Net (Details Narrati

Inventory, Net (Details Narrative) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Inventory valuation reserves	$ 342	$ 319

Inventory, Net - Schedule of In

Inventory, Net - Schedule of Inventory (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Raw materials	$ 518	$ 682
Work-in-process	431	275
Finished goods	260	417
Inventory, net	$ 1,209	$ 1,374

Goodwill and Intangible Asset34

Goodwill and Intangible Assets (Details Narrative) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Impairment	$ 850		$ 850
Weighted average estimated useful lives in years			10 years 8 months 12 days
Amortization Expense			$ 142	$ 93
Amortization expense of intangible assets, 2016	125		125
Amortization expense of intangible assets, 2017	125		125
Amortization expense of intangible assets, 2018	125		125
Amortization expense of intangible assets, 2019	125		125
Amortization expense of intangible assets, 2020	116		$ 116
Smart Grid Distribution Automation [Member]
Impairment	$ 337

Goodwill and Intangible Asset35

Goodwill and Intangible Assets - Schedule of Changes in Carrying Amounts of Goodwill by Segment (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2015USD ($)
Goodwill, Beginning balance	$ 1,031
Impairment	(513)
Translation adjustment	17
Goodwill, Ending balance	535
Energy & Security Sonar Solutions [Member]
Goodwill, Beginning balance	$ 518
Impairment
Translation adjustment	$ 17
Goodwill, Ending balance	535
Smart Grid Distribution Automation [Member]
Goodwill, Beginning balance	513
Impairment	$ (513)
Translation adjustment
Goodwill, Ending balance

Goodwill and Intagible Assets -

Goodwill and Intagible Assets - Schedule of Changes in Carrying Amounts and Accumulated Amortization of Intangible Assets (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2015USD ($)
Intangible assets, Beginning balance	$ 1,211
Amortization	(93)
Impairment	(337)
Cumulative translation adjustment	(28)
Intangible assets, Ending balance	753
Energy & Security Sonar Solutions [Member] | Accumulated Amortization [Member]
Intangible assets, Beginning balance	(964)
Amortization	$ (93)
Impairment
Cumulative translation adjustment	$ 34
Intangible assets, Ending balance	(1,023)
Energy & Security Sonar Solutions [Member] | Cost [Member]
Intangible assets, Beginning balance	$ 2,175
Amortization
Impairment	$ (337)
Cumulative translation adjustment	(62)
Intangible assets, Ending balance	$ 1,776

Equity (Details Narrative)

Equity (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Fair value of option granted per share price			$ 0.52
Stock based compensation expense	$ 169	$ 247	$ 377	$ 557
USSI Stock Option Plan [Member] | Selling General and Administrative Expenses [Member]
Stock based compensation expense	$ 0	$ 31	$ 6	$ 63

Equity - Summary of Stock Optio

Equity - Summary of Stock Option Activity (Details) - 6 months ended Jun. 30, 2015 - USD ($) None in scaling factor is -9223372036854775296	Total
Equity [Abstract]
Number of Options, Outstanding at beginning balance	1,812,428
Number of Options, Granted	662,654
Number of Options, Exercised
Number of Options, Forfeited or expired	(95,164)
Number of Options, Outstanding at end balance	2,379,918
Number of Options, Exercisable at end of period	1,322,330
Weighted Average Exercise Price, Outstanding at beginning	$ 4.51
Weighted Average Exercise Price, Granted	$ 0.77
Weighted Average Exercise Price, Exercised
Weighted Average Exercise Price, Forfeited or expired	$ 3.19
Weighted Average Exercise Price, Outstanding at end	3.52
Weighted Average Exercise Price, Exercisable at end of Period	$ 5.01
Weighted Average Remaining Contractual Terms, Outstanding	5 years 7 months 6 days
Weighted Average Remaining Contractual Terms, Exercisable	3 years 9 months 18 days
Aggregate Intrinsic Value, Outstanding
Aggregate Intrinsic Value, Exercisable

Equity - Schedule of Fair Value

Equity - Schedule of Fair Value Assumptions Estimated Using Black-Scholes Pricing Model (Details) - 6 months ended Jun. 30, 2015	Total
Equity [Abstract]
Risk-free interest rate	2.10%
Expected term of options, in years	8 years 8 months 12 days
Expected annual volatility	63.00%
Expected dividend yield

Fair Value Measurements (Detail

Fair Value Measurements (Details Narrative) $ in Thousands	Jun. 30, 2015USD ($)
Deposit into restricted account	$ 500
June 30, 2016 [Member]
Security deposits	4,457
2018 [Member]
Security deposits	$ 2,991

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Fair Value Measurements (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted deposits - current	$ 4,957	$ 467
Restricted deposits - non-current	2,991	650
Derivative assets (liabilities)	(33)	(45)
Total	7,915	1,072
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted deposits - current	4,957	467
Restricted deposits - non-current	2,991	650
Derivative assets (liabilities)	39	5
Total	$ 7,987	$ 1,122
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted deposits - current
Restricted deposits - non-current
Derivative assets (liabilities)
Total
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted deposits - current
Restricted deposits - non-current
Derivative assets (liabilities)	$ (72)	$ (50)
Total	$ (72)	$ (50)

Segment Reporting - Summary of

Segment Reporting - Summary of Segmented Data (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting Information [Line Items]
Revenue from external customers	$ 4,807	$ 4,723	$ 9,425	$ 9,177
Intersegment revenues
Segment gross profit	$ 1,665	$ 1,276	$ 3,184	$ 2,706
Depreciation and amortization	$ 129	168	$ 260	335
Restructuring and related charges		$ 198		$ 198
Impairments	$ 850		$ 850
Segment net income (loss) before income taxes	(1,992)	$ (1,862)	(2,784)	$ (3,467)
Energy & Security Sonar Solutions [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	$ 3,088	$ 2,522	$ 5,748	$ 5,037
Intersegment revenues
Segment gross profit	$ 1,185	$ 459	$ 1,790	$ 1,145
Depreciation and amortization	$ 45	$ 74	$ 90	$ 145
Restructuring and related charges
Impairments
Segment net income (loss) before income taxes	$ 90	$ (570)	$ (204)	$ (778)
Smart Grid Distribution Automation [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	$ 702	$ 1,246	$ 1,610	$ 2,209
Intersegment revenues
Segment gross profit	$ 40	$ 366	$ 317	$ 551
Depreciation and amortization	56	66	113	131
Restructuring and related charges		102		102
Impairments	850		850
Segment net income (loss) before income taxes	(1,568)	(805)	(1,893)	(1,778)
M2M [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	$ 560	$ 548	$ 1,113	$ 1,056
Intersegment revenues
Segment gross profit	$ 294	$ 252	$ 634	$ 564
Depreciation and amortization	$ 17	18	$ 35	35
Restructuring and related charges		77		77
Impairments
Segment net income (loss) before income taxes	$ (422)	(448)	$ (700)	(851)
Other [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	$ 457	$ 407	$ 954	$ 875
Intersegment revenues
Segment gross profit	$ 190	$ 199	$ 487	$ 446
Depreciation and amortization	$ 11	10	$ 22	24
Restructuring and related charges		19		19
Impairments
Segment net income (loss) before income taxes	$ (92)	$ (39)	$ 13	$ (60)

Segment Reporting - Schedule of

Segment Reporting - Schedule of Reconciliation of Segment Data to Consolidated Statement of Operations (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting [Abstract]
Total net loss before income taxes for reportable segments		$ (1,900)	$ (1,823)	$ (2,797)	$ (3,407)
Other operational segment net income (loss) before income taxes		(92)	(39)	13	(60)
Total segment net loss before income taxes		(1,992)	(1,862)	(2,784)	(3,467)
Unallocated cost of corporate headquarters	[1]	$ (856)	(942)	$ (1,890)	(1,985)
Provision for loss - channel partner			(649)		(649)
Unallocated benefit (cost) of DSIT headquarters		$ (77)	(62)	$ (66)	(88)
Consolidated loss before income taxes		$ (2,925)	$ (3,515)	$ (4,740)	$ (6,189)
[1]	Includes stock compensation expense of $550 and $376 for the six month periods ended June 30, 2014 and 2015 and $240 and $168 for the three month periods ended June 30, 2014 and 2015, respectively.

Segment Reporting - Schedule 44

Segment Reporting - Schedule of Reconciliation of Segment Data to Consolidated Statement of Operations (Details) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting [Abstract]
Stock compensation expense	$ 168	$ 240	$ 376	$ 550

Subsequent Events (Details Narr

Subsequent Events (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	Aug. 13, 2015	Jul. 31, 2015	Jun. 30, 2015	May. 14, 2015	May. 04, 2015
Deposit into restricted account			$ 500
GridSense [Member] | Loan Agreement [Member]
Deposit into restricted account				$ 250	$ 250
Subsequent Event [Member] | Leap Tide Capital Partners LLC [Member] | Loan Agreement [Member]
Amount borrowed as per the agreement	$ 2,000
Debt interest rate percentage	10.00%
Amount of proceeds deposited in escrow account	$ 100
Minimum amount maintained in escrow account	$ 50
Number of shares issued for debt	850,000
Additional shares issued to vested rights	179,167
Shares repurchase price per share - call option	$ 0.30
Shares repurchase price per share - put option	$ 0.40
Subsequent Event [Member] | Leap Tide Capital Partners LLC [Member] | Loan Agreement [Member] | DSIT Solutions, Ltd. [Member]
Secured loan prrincipal amount	$ 5,000
Subsequent Event [Member] | GridSense [Member] | Loan Agreement [Member]
Scheduled payment to restricted account		$ 250
Deposit into restricted account			500
Subsequent Event [Member] | GridSense [Member] | Loan Agreement [Member]
Paid to bank			$ 480

Uncategorized Items - acfn-2015

Label	Element	Value
Provision for loss - channel partner	us-gaap_ProvisionForLeaseLosses
Provision for loss - channel partner	us-gaap_ProvisionForLeaseLosses	$ 649
Loss from discontinued operations, net of income taxes	us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	(2,238)
Loss from discontinued operations, net of income taxes	us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	$ (229)