Organization and Summary of significant accounting policies	3 Months Ended
Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Summary of significant accounting policies	Organization and Summary of significant accounting policies Organization and nature of operations MRV Communications, Inc. ("MRV" or the "Company"), a Delaware corporation, is a global supplier of communications solutions to telecommunications service providers, data center operators, enterprises and governments throughout the world. MRV's products enable customers to provide high-bandwidth data and video services and mobile communications services more efficiently and cost effectively. MRV markets and sells its products worldwide, through a variety of channels, which include a dedicated direct sales force, manufacturers' representatives, value-added-resellers, distributors and systems integrators. Until the third quarter of 2015, MRV conducted its business along two principal segments: the Network Equipment segment and the Network Integration segment. MRV's Network Equipment segment designs, manufactures, sells, and services equipment used by commercial customers, governments, and telecommunications service providers. Products include switches, optical transport platforms, physical layer products and out-of-band management products, and specialized networking products. The Network Integration segment, which primarily operated in Italy and provided network system design, integration and distribution services that includes products manufactured by third-party vendors, was sold in December 2015. On December 3, 2015, the Company completed the sale of all of the shares of its wholly owned subsidiary, Tecnonet S.p.A.(Tecnonet), pursuant to a shares purchase agreement, dated as of August 10, 2015 (the "Purchase Agreement") with Maticmind S.p.A, ("the purchaser”), a company incorporated under the laws of Italy. Tecnonet was the last business unit in our Network Integration segment. Basis of Presentation The accompanying condensed consolidated financial statements include the accounts of MRV and its wholly-owned subsidiaries. All significant intercompany transactions and accounts have been eliminated. The condensed consolidated unaudited financial statements included herein have been prepared by MRV pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted pursuant to such rules and regulations. The information included in this Quarterly Report on Form 10-Q for the quarter ended March 31, 2016, (this “Form 10-Q”) should be read in conjunction with the Financial Statements and Notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2015, (the “2015 Form 10-K”) filed with the SEC. In the opinion of MRV's management, the unaudited interim financial information contained herein includes all normal recurring adjustments, necessary to present fairly the financial position of MRV as of March 31, 2016, and the results of its operations and comprehensive loss, and cash flows for the three months ended March 31, 2016 and 2015. The results reported in these condensed consolidated financial statements should not be regarded as necessarily indicative of results that may be expected for the full year or any future periods. Reclassification Prior Period Reclassifications. On December 3, 2015, the Company completed the sale of Tecnonet. The results of operations for Tecnonet have been reclassified and presented as discontinued operations in this Form 10-Q for all periods presented. Cash flows from discontinued operations are presented separately from the cash flows from continuing operations in the accompanying Statement of Cash Flows. (See Note 15, Discontinued Operations) Recently Issued Accounting Standards We consider the applicability and impact of all Accounting Standards Updates (“ASUs”). The ASUs not listed below were assessed and determined by management to be either not applicable or are expected to have minimal impact on our consolidated financial position and/or results of operations. In May 2014, the FASB issued ASU No. 2014-09, "Revenue from Contracts with Customers (Topic 606)," ("ASU 2014-09"). ASU 2014-09 outlines a new, single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes current revenue recognition guidance, including industry-specific guidance. This new revenue recognition model provides a five-step analysis in determining when and how revenue is recognized. The new model will require revenue recognition to depict the transfer of promised goods or services to customers in an amount that reflects the consideration a company expects to receive in exchange for those goods or services. The amendments may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of initial application. ASU 2014-09 was originally effective for interim and annual reporting periods beginning after December 15, 2016. In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers (Topic 606) – Deferral of the Effective Date, which defers the effective date to annual reporting periods beginning after December 15, 2017. Early application is permitted after December 15, 2016. Management is currently evaluating the potential impact that adopting ASU 2014-09 will have on its consolidated financial statements and footnote disclosures. The Company anticipates concluding its evaluation by December 31, 2016 and plans to adopt ASU 2014-09 on January 1, 2018. In June 2014, the FASB issued ASU No. 2014-12, “Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period” (“ASU 2014-12”). The amendments in ASU 2014-12 require that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. A reporting entity should apply existing guidance in Accounting Standards Codification Topic No. 718, “Compensation - Stock Compensation” (“ASC 718”), as it relates to awards with performance conditions that affect vesting to account for such awards. The amendments in ASU 2014-12 are effective for annual periods and interim periods within those annual periods beginning after December 15, 2015. Early adoption is permitted. Entities may apply the amendments in ASU 2014-12 either: (i) prospectively to all awards granted or modified after the effective date; or (ii) retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. Management is currently evaluating the potential impact of that adopting ASU 2014-12 will have on its consolidated financial statements and footnote disclosures. In August 2014, the FASB issued ASU No. 2014-15, "Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern" ("ASU 2014-15"). ASU 2014-15 provides guidance on management’s responsibility in evaluating whether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures. ASU 2014-15 is effective for the Company in its fourth quarter of fiscal 2017 with early adoption permitted. Management is currently evaluating the potential impact that adopting ASU 2014-15 will have on its consolidated financial statements and footnote disclosures. In July 2015, the FASB issued ASU No. 2015-11, "Simplifying the Measurement of Inventory" (“ASU 2015-11”). ASU 2015-11 simplifies the guidance on the subsequent measurement if inventory, excluding inventory measured using the last-in, first out of the retail inventory method. Under the new standard, inventory should be at the lower of cost and net realizable value. ASU 2015-11 will be effective for the Company in the first quarter of fiscal 2017 with early adoption permitted. Management is currently evaluating the potential impact that adopting ASU 2015-11 will have on its consolidated financial statements and footnote disclosures. In November 2015, the FASB issued ASU No. 2015-17, "Balance Sheet Classification of Deferred Taxes" ("ASU 2015-17"). The amendments in ASU 2015-17 simplify the presentation of deferred income taxes by requiring that deferred tax assets and liabilities be classified as non-current. ASU 2015-17 is effective for fiscal years beginning after December 15, 2017 with early adoption permitted. Management is currently evaluating the potential impact that adopting ASU 2015-17 will have on its consolidated financial statements and footnote disclosures. In February 2016, the FASB issued ASU No. 2016-02, "Leases" ("ASU 2016-02"). The amendments in ASU 2016-02 require companies that lease assets to recognize on their balance sheets the assets and liabilities for the rights and obligations generated by contracts longer than a year. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018 with early adoption permitted. The guidance is required to be applied using the modified retrospective transition approach. Early adoption is permitted. Management is currently evaluating the potential impact that adopting ASU 2016-02 will have on its consolidated financial statements and footnote disclosures. In March 2016, the FASB issued ASU No. 2016-09, "Stock Compensation (Topic 718): Improvements to employee Share-Based Payment Accounting" ("ASU 2016-09"). The amendments in ASU 2016-09 simplify the accounting for share-based payment award transactions including: income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. ASU 2016-09 is effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted. Management is currently evaluating the potential impact that adopting ASU 2016-09 will have on its consolidated financial statements and footnote disclosures.

Organization and Summary of significant accounting policies

Organization and nature of operations

MRV Communications, Inc. ("MRV" or the "Company"), a Delaware corporation, is a global supplier of communications solutions to telecommunications service providers, data center operators, enterprises and governments throughout the world. MRV's products enable customers to provide high-bandwidth data and video services and mobile communications services more efficiently and cost effectively. MRV markets and sells its products worldwide, through a variety of channels, which include a dedicated direct sales force, manufacturers' representatives, value-added-resellers, distributors and systems integrators. Until the third quarter of 2015, MRV conducted its business along two principal segments: the Network Equipment segment and the Network Integration segment. MRV's Network Equipment segment designs, manufactures, sells, and services equipment used by commercial customers, governments, and telecommunications service providers. Products include switches, optical transport platforms, physical layer products and out-of-band management products, and specialized networking products. The Network Integration segment, which primarily operated in Italy and provided network system design, integration and distribution services that includes products manufactured by third-party vendors, was sold in December 2015.

On December 3, 2015, the Company completed the sale of all of the shares of its wholly owned subsidiary, Tecnonet S.p.A.(Tecnonet), pursuant to a shares purchase agreement, dated as of August 10, 2015 (the "Purchase Agreement") with Maticmind S.p.A, ("the purchaser”), a company incorporated under the laws of Italy. Tecnonet was the last business unit in our Network Integration segment.

Basis of Presentation

The accompanying condensed consolidated financial statements include the accounts of MRV and its wholly-owned subsidiaries. All significant intercompany transactions and accounts have been eliminated.

The condensed consolidated unaudited financial statements included herein have been prepared by MRV pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted pursuant to such rules and regulations. The information included in this Quarterly Report on Form 10-Q for the quarter ended March 31, 2016, (this “Form 10-Q”) should be read in conjunction with the Financial Statements and Notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2015, (the “2015 Form 10-K”) filed with the SEC.

In the opinion of MRV's management, the unaudited interim financial information contained herein includes all normal recurring adjustments, necessary to present fairly the financial position of MRV as of March 31, 2016, and the results of its operations and comprehensive loss, and cash flows for the three months ended March 31, 2016 and 2015. The results reported in these condensed consolidated financial statements should not be regarded as necessarily indicative of results that may be expected for the full year or any future periods.

Reclassification

Prior Period Reclassifications. On December 3, 2015, the Company completed the sale of Tecnonet. The results of operations for Tecnonet have been reclassified and presented as discontinued operations in this Form 10-Q for all periods presented. Cash flows from discontinued operations are presented separately from the cash flows from continuing operations in the accompanying Statement of Cash Flows. (See Note 15, Discontinued Operations)

Recently Issued Accounting Standards

We consider the applicability and impact of all Accounting Standards Updates (“ASUs”). The ASUs not listed below were assessed and determined by management to be either not applicable or are expected to have minimal impact on our consolidated financial position and/or results of operations.

In May 2014, the FASB issued ASU No. 2014-09, "Revenue from Contracts with Customers (Topic 606)," ("ASU 2014-09"). ASU 2014-09 outlines a new, single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes current revenue recognition guidance, including industry-specific guidance. This new revenue recognition model provides a five-step analysis in determining when and how revenue is recognized. The new model will require revenue recognition to depict the transfer of promised goods or services to customers in an amount that reflects the consideration a company expects to receive in exchange for those goods or services. The amendments may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of initial application. ASU 2014-09 was originally effective for interim and annual reporting periods beginning after December 15, 2016. In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers (Topic 606) – Deferral of the Effective Date, which defers the effective date to annual reporting periods beginning after December 15, 2017. Early application is permitted after December 15, 2016. Management is currently evaluating the potential impact that adopting ASU 2014-09 will have on its consolidated financial statements and footnote disclosures. The Company anticipates concluding its evaluation by December 31, 2016 and plans to adopt ASU 2014-09 on January 1, 2018.

In June 2014, the FASB issued ASU No. 2014-12, “Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period” (“ASU 2014-12”). The amendments in ASU 2014-12 require that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. A reporting entity should apply existing guidance in Accounting Standards Codification Topic No. 718, “Compensation - Stock Compensation” (“ASC 718”), as it relates to awards with performance conditions that affect vesting to account for such awards. The amendments in ASU 2014-12 are effective for annual periods and interim periods within those annual periods beginning after December 15, 2015. Early adoption is permitted. Entities may apply the amendments in ASU 2014-12 either: (i) prospectively to all awards granted or modified after the effective date; or (ii) retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. Management is currently evaluating the potential impact of that adopting ASU 2014-12 will have on its consolidated financial statements and footnote disclosures.

In August 2014, the FASB issued ASU No. 2014-15, "Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern" ("ASU 2014-15"). ASU 2014-15 provides guidance on management’s responsibility in evaluating whether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures. ASU 2014-15 is effective for the Company in its fourth quarter of fiscal 2017 with early adoption permitted. Management is currently evaluating the potential impact that adopting ASU 2014-15 will have on its consolidated financial statements and footnote disclosures.

In July 2015, the FASB issued ASU No. 2015-11, "Simplifying the Measurement of Inventory" (“ASU 2015-11”). ASU 2015-11 simplifies the guidance on the subsequent measurement if inventory, excluding inventory measured using the last-in, first out of the retail inventory method. Under the new standard, inventory should be at the lower of cost and net realizable value. ASU 2015-11 will be effective for the Company in the first quarter of fiscal 2017 with early adoption permitted. Management is currently evaluating the potential impact that adopting ASU 2015-11 will have on its consolidated financial statements and footnote disclosures.

In November 2015, the FASB issued ASU No. 2015-17, "Balance Sheet Classification of Deferred Taxes" ("ASU 2015-17"). The amendments in ASU 2015-17 simplify the presentation of deferred income taxes by requiring that deferred tax assets and liabilities be classified as non-current. ASU 2015-17 is effective for fiscal years beginning after December 15, 2017 with early adoption permitted. Management is currently evaluating the potential impact that adopting ASU 2015-17 will have on its consolidated financial statements and footnote disclosures.

In February 2016, the FASB issued ASU No. 2016-02, "Leases" ("ASU 2016-02"). The amendments in ASU 2016-02 require companies that lease assets to recognize on their balance sheets the assets and liabilities for the rights and obligations generated by contracts longer than a year. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018 with early adoption permitted. The guidance is required to be applied using the modified retrospective transition approach. Early adoption is permitted. Management is currently evaluating the potential impact that adopting ASU 2016-02 will have on its consolidated financial statements and footnote disclosures.

In March 2016, the FASB issued ASU No. 2016-09, "Stock Compensation (Topic 718): Improvements to employee Share-Based Payment Accounting" ("ASU 2016-09"). The amendments in ASU 2016-09 simplify the accounting for share-based payment award transactions including: income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. ASU 2016-09 is effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted. Management is currently evaluating the potential impact that adopting ASU 2016-09 will have on its consolidated financial statements and footnote disclosures.