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Nature of Operations | 12 Months Ended
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Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Nature of Operations | NOTE 1—NATURE OF OPERATIONS (a) Description of Business Acorn Energy, Inc. (“Acorn” or “the Company”) is a Delaware corporation which is holding company focused on technology-driven solutions for energy infrastructure asset management., The Company provides the following services and products through its OmniMetrixTM, LLC (“OmniMetrix”) subsidiary:
| ● | Power Generation (“PG”) monitoring. OmniMetrix’s PG activities provide wireless remote monitoring and control systems and services for critical assets as well as Internet of Things applications.
| ● | Cathodic Protection (“CP”) monitoring. OmniMetrix’s CP activities provide for remote monitoring of cathodic protection systems on gas pipelines for gas utilities and pipeline companies.
The Company’s operations were based in the United States and in Israel through its investment in DSIT until the closing of the 2018 DSIT Transaction. Subsequent to February 14, 2018, the Company’s operations are based solely in the United States. Acorn’s shares are traded on the OTCQB marketplace under the symbol ACFN. On January 18, 2018, the company entered into a Share Purchase Agreement for the sale of its remaining interest in DSIT Solutions Ltd. (“DSIT”) to an Israeli investor group (the “2018 DSIT Transaction”). Following the closing of the 2018 DSIT Transaction on February 14, 2018, the company no longer reported DSIT’s results on the equity method. See Notes 14 and 15 for segment information and major customers. (b) Liquidity As of December 31, 2019, the Company had approximately $1,247 of corporate cash and cash equivalents including $313 that was related to a foreign tax settlement and held at a bank in Israel. The balance in the Israel bank account was reclassed to operating cash from restricted cash at December 31, 2019 as the funds were transferred to our operating bank account in the United States on January 29, 2020 and thus, were not deemed restricted cash as of December 31, 2019. As of March 20, 2020, the Company had corporate cash of approximately $1,555. Such cash plus the cash generated from operations and borrowing from the OmniMetrix Loan and Security Agreement, will provide sufficient liquidity to finance the operating activities of Acorn and OmniMetrix at their current level of operations for the foreseeable future and for the twelve months from the issuance of these consolidated financial statements in particular.

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- Definition The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -URI http://asc.fasb.org/topic&trid=2134479 + Details
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