10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

________________________

FORM 10-Q

________________________

[x] Quarterly report pursuant to section 13 or 15(d) of the Securities Exchange Act of 1934 for the quarterly period ended March 31, 2014

[ ] Transition report pursuant to section 13 or 15(d) of the Securities Exchange Act of 1934 for the transition period from _______________ to ______________

Commission file number: 001-11174

MRV COMMUNICATIONS, INC.

(Exact name of registrant as specified in its charter)

Delaware	06-1340090
(State or other jurisdiction of	(I.R.S. employer
incorporation or organization)	identification no.)

20415 Nordhoff Street, Chatsworth, CA 91311

(Address of principal executive offices, zip code)

(818) 773-0900

(Registrant's telephone number, including area code)

Indicate by check mark, whether the registrant (1) has filed all reports required to be filed by section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes [x]  No [ ]

Indicate by check mark, whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files.) Yes [x]  No [ ]

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer,” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer  [ ]	Accelerated filer  [x]
Non-accelerated filer [ ]	Smaller reporting company [ ]
(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes [ ]   No [x]

As of  April 30, 2014, 7,349,600 shares of Common Stock of MRV Communications, Inc. were outstanding.

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MRV Communications, Inc.

Form 10-Q for the Quarter Ended March 31, 2014

Index

		Page Number
PART I	Financial Information	3
Item 1.	Unaudited Condensed Consolidated Financial Statements:	3
	Condensed Consolidated Statements of Operations (unaudited) for the three months ended March 31, 2014 and 2013	3
	Condensed Consolidated Statements of Comprehensive Income (Loss) (unaudited) for the three months ended March 31, 2014 and 2013	3
	Condensed Consolidated Balance Sheets as of March 31, 2014 (unaudited) and December 31, 2013	5
	Condensed Consolidated Statements of Cash Flows (unaudited) for the three months ended March 31, 2014 and 2013	6
	Notes to Condensed Consolidated Financial Statements	8
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	16
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	26
Item 4.	Controls and Procedures	28
PART II	Other Information	30
Item 1.	Legal Proceedings	30
Item 1A.	Risk Factors	30
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	30
Item 3.	Defaults Upon Senior Securities	30
Item 4.	Mine Safety Disclosures	30
Item 6.	Exhibits	32
	Signatures	33

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PART I - FINANCIAL INFORMATION

Item 1.Condensed Consolidated Financial Statements

MRV Communications, Inc.

Condensed Consolidated Statements of Operations

(In thousands, except per share data)

	Three Months Ended   March 31,
	2014			2013
	(unaudited)			(unaudited)
Revenue:
Product revenue	$	31,544		$	28,072
Service revenue	10,774			10,833
Total revenue	42,318			38,905
Cost of sales	29,067			25,878
Gross profit	13,251			13,027
Operating expenses:
Product development and engineering	5,578			4,648
Selling, general and administrative	11,522			12,392
Total operating expenses	17,100			17,040
Operating loss	(3,849		)	(4,013		)
Interest expense	(150		)	(132		)
Other income, net	33			17
Loss before income taxes	(3,966		)	(4,128		)
Provision for income taxes	251			306
Net Loss	$	(4,217	)	$	(4,434	)
Net loss per share — basic	$	(0.58	)	$	(0.59	)
Net loss per share — diluted	$	(0.58	)	$	(0.59	)
Weighted average number of shares:
Basic	7,283			7,568
Diluted	7,283			7,568

________________________________________

(1) Amounts may not add due to rounding.

The accompanying notes are an integral part of these financial statements.

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MRV Communications, Inc.

Condensed Consolidated Statements of Comprehensive Income (Loss)

(In thousands)

	Three Months Ended   March 31,
	2014			2013
	(unaudited)			(unaudited)
Net Loss		($4,217	)		($4,434	)
Other comprehensive loss net of tax
Foreign currency translation loss	(47		)	(835		)
Total comprehensive loss		($4,264	)		($5,269	)

The accompanying notes are an integral part of these financial statements.

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MRV Communications, Inc.

Condensed Consolidated Balance Sheets

(In thousands, except par values)

	March 31, 2014			December 31, 2013
Assets	(unaudited)
Current assets:
Cash and cash equivalents		$23,214			$27,591
Restricted time deposits	244			249
Accounts receivable, net	51,127			49,990
Other receivables	6,503			8,220
Inventories, net	25,435			22,981
Income tax refunds receivable	1,002			1,256
Deferred income taxes	1,185			1,219
Other current assets	6,156			5,664
Total current assets	114,866			117,170
Property and equipment, net	5,391			5,555
Deferred income taxes, net of current portion	3,756			3,694
Intangibles, net	762			873
Other assets	601			655
Total assets		$125,376			$127,947
Liabilities and stockholders' equity
Current liabilities:
Short-term debt		$6,794			$4,320
Deferred consideration payable	233			233
Accounts payable	24,430			23,991
Accrued liabilities	15,780			19,463
Deferred revenue	10,925			10,557
Other current liabilities	642			357
Total current liabilities	58,804			58,921
Other long-term liabilities	5,303			5,236
Commitments and contingencies
Stockholders' equity:
Preferred Stock, $0.01 par value: Authorized — 1,000 shares; no shares issued or outstanding	—			—
Common Stock, $0.0017 par value:
Authorized — 16,000 shares
Issued — 8,136 shares in 2014 and 8,143 shares in 2013
Outstanding — 7,280 shares in 2014 and 7,286 in 2013	270			270
Additional paid-in capital	1,283,626			1,281,883
Accumulated deficit	(1,212,554		)	(1,208,337		)
Treasury stock — 856 shares in 2014 and 856 shares in 2013	(10,412		)	(10,412		)
Accumulated other comprehensive income	339			386
Total stockholders' equity	61,269			63,790
Total liabilities and stockholders' equity		$125,376			$127,947

The accompanying notes are an integral part of these financial statements.

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MRV Communications, Inc.

Condensed Consolidated Statements of Cash Flows

(In thousands)

	Three Months Ended   March 31,
	2014			2013
	(unaudited)			(unaudited)
Cash flows from operating activities:
Net loss		($4,217	)		($4,434	)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	624			401
Share-based compensation expense	147			219
Provision for doubtful accounts	(77		)	185
Deferred income taxes	365			16
Loss on disposition of property and equipment	—			14
Changes in operating assets and liabilities:
Accounts receivable	(1,092		)	2,732
Inventories	(2,471		)	1,407
Other assets	1,712			(3,220		)
Accounts payable	455			3,061
Accrued liabilities	(2,076		)	996
Income tax payable	(21		)	121
Deferred revenue	371			905
Other current liabilities	(214		)	131
Net cash provided by (used in) operating activities	(6,494		)	2,534
Cash flows from investing activities:
Purchases of property and equipment	(352		)	(955		)
Release of restricted time deposits	5			(2		)
Net cash used in investing activities	(347		)	(957		)
Cash flows from financing activities:
Purchase of treasury shares	—			(513		)
Borrowings on short-term debt	6,819			968
Payments on short-term debt	(4,350		)	(5,356		)
Net cash provided by (used in) financing activities	2,469			(4,901		)
Effect of exchange rate changes on cash and cash equivalents	(5		)	(39		)
Net decrease in cash and cash equivalents	(4,377		)	(3,363		)
Cash and cash equivalents, beginning of period	27,591			40,608
Cash and cash equivalents, end of period		$23,214			$37,245

Supplement disclosure on following page.

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	Three Months Ended   March 31,
	2014		2013
	(unaudited)		(unaudited)
Supplemental disclosure of cash flow information:
Cash paid during period for interest	$	51	$	514
Cash paid during period for income taxes	$	—	$	1,500

The accompanying notes are an integral part of these financial statements.

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MRV Communications, Inc.

Notes to Condensed Consolidated Financial Statements

(Unaudited)

1. 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, 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. MRV conducts 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 Italian Network Integration segment provides network system design, integration and distribution services that include products manufactured by third-party vendors.

Basis of Presentation

The consolidated financial statements include the accounts of MRV and its wholly-owned subsidiaries. All significant intercompany transactions and accounts have been eliminated. MRV consolidates the financial results of less than majority-owned subsidiaries when it has effective control, voting control, or has provided the entity's working capital. When investment by others in these enterprises reduces the Company's voting control below 50%, MRV discontinues consolidation and uses the cost or equity method of accounting for these investments, unless otherwise required.

The consolidated financial statements included herein have been prepared by MRV, and are unaudited, 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 (“GAAP”) have been condensed or omitted pursuant to such rules and regulations although MRV believes that the disclosures are adequate to make the information presented not misleading. The information included in this Quarterly Report on Form 10-Q for the quarter ended March 31, 2014 (this “Form 10-Q”) should be read in conjunction with “Selected Financial Data,” “Management's Discussion and Analysis of Financial Condition and Results of Operations,” “Quantitative and Qualitative Disclosures About Market Risk,” and the Financial Statements and Notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2013 (the “2013 Form 10-K”) filed with the SEC.

Restricted time deposits represent investments that are restricted as to withdrawal. Restricted time deposits generally secure standby letters of credit, bank lines of credit, or bank loans. Investments in and releases of restricted time deposits are included in investing activities on the Company's Statement of Cash Flows unless the time deposits relate to an underlying bank loan and will be used to repay the loan, in which case the related cash flows are treated as financing activities.

In the opinion of MRV's management, these unaudited statements contain all adjustments, which include normal recurring adjustments, necessary to present fairly the financial position of MRV as of March 31, 2014, and the results of its operations and comprehensive income (loss) for the three months ended March 31, 2014 and 2013 and its cash flows for the three months ended March 31, 2014 and 2013. The results reported in these financial statements should not be regarded as necessarily indicative of results that may be expected for the full year or any future periods.

2. Cash and Cash Equivalents and Restricted Time Deposits

MRV treats highly liquid investments with an original maturity of 90 days or less as cash equivalents. Investments with maturities of less than one year are considered short-term, and are included on the balance sheet in restricted time deposits. MRV maintains cash balances and investments in qualified financial institutions, and at various times such amounts are in excess of federal insured limits.

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3. Fair Value Measurement

MRV's financial instruments, including cash and cash equivalents, restricted time deposits, accounts receivable, other receivables, other assets, accounts payable, accrued liabilities and short-term debt obligations, are carried at cost, which approximates their fair market value.

ASC 820-10Fair Value Measurementsdefines fair value, establishes a framework for measuring fair value, and expands disclosures about fair value measurements. ASC 820-10 establishes a three-level hierarchy that prioritizes the use of observable inputs. The fair value hierarchy is divided into three levels based on the source of inputs as follows: Level 1 -Valuations based on unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access; Level 2 - Valuations for which all significant inputs are observable, either directly or indirectly, other than level 1 inputs; Level 3 - Valuations based on inputs that are unobservable and significant to the overall fair value measurement.

All of MRV's assets and a majority of its liabilities that are measured at fair value are measured using the unadjusted quoted prices in active markets for identical assets or liabilities that are accessible at the measurement date. Under this standard, fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (i.e., the “exit price”) in an orderly transaction between market participants at the measurement date.

As of March 31, 2014 and December 31, 2013 , the Company had cash equivalents consisting of money market funds of $14.0 million and $14.0 million, respectively that were classified as Level 1 investments and were quoted at market price. Cash equivalents are included in the consolidated balance sheets as follows (in thousands):

	Cost		Fair Value
December 31, 2013	$	14,001	$	14,001
March 31, 2014	$	14,003	$	14,003

During 2014 the Company updated the estimated fair value as of the issuance date of 250,000 warrants that were issued to plaintiffs' counsel on February 18, 2014 in a litigation matter originally recorded as a liability in 2013. In calculating the fair value, the Company used the Black Scholes option pricing model with level 2 inputs including a volatility of 41% based on the Company's historical quoted prices and peer company data, the risk free interest rate of 1.5% and the 5 years expected term of the warrants. Volatility based on both the Company's historical quoted prices and peer company data was used as the Company's stock is thinly traded. The resulting fair value was $6.59 per warrant. In relation to this revaluation, the Company recorded expense of $0.4 million for the three months ended March 31,2014. Upon issuance and revaluation, the warrants were removed from liabilities and recorded as a component of additional paid in capital. As the criteria was met under ASU 480 and ASU 815.

4. Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk primarily consist of cash and cash equivalents placed with high credit quality institutions and accounts receivable due from customers. MRV evaluates the collectability of accounts receivable based on a combination of factors. If the Company becomes aware of a customer's inability to meet its financial obligations after a sale has occurred, the Company records an allowance to reduce the net receivable to the amount that it reasonably believes to be collectable from the customer. For all other customers, the Company records allowances for doubtful accounts based on the length of time the receivables are past due, the current business environment, and historical experience. If the financial conditions of MRV's customers were to deteriorate or if economic conditions worsen, additional allowances may be required in the future. Accounts receivable are charged off at the point they are considered uncollectible.

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The following table summarizes the changes in the allowance for doubtful accounts during the three months ended March 31, 2014(in thousands):

	Three months ended
	March 31, 2014
Balance at beginning of period		$2,183
Charged to expense	(77		)
Write-offs	—
Foreign currency translation adjustment	(3		)
Balance at end of period		$2,103

5. Inventories

Inventories are stated at the lower of cost or market and consist of materials, labor and overhead. Cost is computed using standard cost, which approximates actual cost, on a first-in, first-out basis. Inventories, net of reserves, consisted of the following (in thousands):

	March 31, 2014		December 31, 2013
Raw materials		$4,843		$5,723
Work-in process	1,007		1,121
Finished goods	19,585		16,137
Total		$25,435		$22,981

6. Intangible Asset

The balance of the intangible asset was $0.8 million as of March 31, 2014 and $0.9 million as of December 31, 2013. This asset, which represents software license agreements, was not placed in service as of March 31, 2014, therefore amortization of intangible assets was zero for the three months ended March 31, 2014 and March 31, 2013. The terms of the license agreements are indefinite and once placed in service, the Company plans to amortize the cost over the estimated useful life, which is approximately 5 years.

7. Product Warranty

As of March 31, 2014 and December 31, 2013, MRV's product warranty liability recorded in accrued liabilities was $0.6 million and $0.6 million, respectively. MRV accrues for warranty costs as part of cost of goods sold based on associated material product costs, technical support labor costs and associated overhead. The products sold are generally covered by a warranty for periods of 90 days to three years.

The following table summarizes the change in product warranty liability during the three months ended March 31, 2014 (in thousands):

	Three months ended
	March 31, 2014
Beginning balance		$578
Cost of warranty claims	(15		)
Accruals for product warranties	33
Total		$596

8. Net Income (Loss) Per Share

Basic net income (loss) per share is computed using the weighted average number of shares of common stock ("Common Stock") outstanding, including restricted shares which, although they are legally outstanding and have

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voting rights, are subject to vesting and are treated as common stock equivalents in calculating basic income (loss) per share. Diluted net income per share is computed using the weighted average number of shares of Common Stock outstanding and dilutive potential shares of Common Stock from stock options outstanding during the period. Diluted shares outstanding also include the dilutive effect of in-the-money options, which is calculated based on the average share price for each period using the treasury stock method.

Outstanding stock options to purchase 0.3 million shares were excluded from the computation of dilutive shares for the three months ended March 31,2014 because of the net loss. Outstanding stock options to purchase 0.4 million shares were excluded in the computation of dilutive shares for the three months ended March 31, 2013 because of the net loss. In addition, for the three months ended March 31,2014, there were 9.3 thousand potentially dilutive shares excluded from the calculation of diluted net loss per share because they were anti-dilutive, and there were no potentially dilutive shares to be excluded from the calculation of diluted net loss per share for the three months ended March 31, 2013. Treasury shares are excluded from the number of shares outstanding.

9. Share-Based Compensation

MRV records share-based compensation expense in accordance with ASC Topic 718Compensation - Stock Compensation. The following table summarizes the impact on MRV's results of operations of recording share-based compensation for the three months ended March 31, 2014 and 2013 (in thousands):

	Three months ended
	March 31,
	2014		2013
Cost of goods sold		$20		$17
Product development and engineering	23		10
Selling, general and administrative	104		192
Total share-based compensation expense (1)		$147		$219

(1) Income tax benefits realized from stock option exercises and similar awards were immaterial in both periods.

The Company granted no stock options and no restricted shares during the three months ended March 31,2014 and the three months ended March 31,2013. As of March 31, 2014, the total unrecorded deferred share-based compensation balance for unvested securities, net of expected forfeitures, was$0.5 million, which is expected to be amortized over a weighted-average period of1.1 years.

Valuation Assumptions

MRV uses the Black-Scholes option pricing model to estimate the fair value of stock option awards or related modifications. The Black-Scholes model requires the use of subjective and complex assumptions including the option's expected life and the underlying stock price volatility. MRV bases volatility on the Company's historical quoted prices and peer company data. There were no options modified during the three months ended March 31, 2014 and 2013, respectively.

10. Segment Reporting and Geographic Information

MRV operates its business in two segments: Network Equipment and Network Integration. Network Equipment designs, manufactures, distributes and services optical networking solutions and Internet infrastructure products, and Network Integration distributes network solutions and Internet infrastructure products and provides value-added integration and support services for customers' networks.

The accounting policies of the segments are the same as those described in the summary of significant accounting polices disclosed in MRV's2013Form 10-K. MRV evaluates segment performance based on revenues, gross profit and operating income (loss) of each segment. As such, there are no separately identifiable Statements of Operations data below operating income (loss).

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The following table summarizes revenues by segment, including intersegment revenues (in thousands):

	Three Months Ended   March 31,
	2014			2013
Network Equipment		$22,319			$20,946
Network Integration	20,053			17,982
Before intersegment adjustments	42,372			38,928
Intersegment adjustments	(54		)	(23		)
Total		$42,318			$38,905

Network Equipment revenue primarily consists of optical communication systems that include Metro Ethernet equipment, optical transport equipment, lab automation equipment, out-of-band network equipment, and the related service revenue and fiber optic components sold as part of system solutions. Network Integration revenue primarily consists of value-added integration and support service revenue, related third-party product sales (including third-party product sales through distribution) and fiber optic components sold as part of system solutions. All Network Integration's sales are within Italy.

One customer accounted for $11.0 million and $11.5 million of revenue in Network Integration revenue, or 26% and 30% of total revenue, for the three months ended March 31, 2014 and 2013, respectively. Another customer accounted for $6.5 million and $5.1 million of Network Integration revenue, or 15% and 13% of total revenue, for the three months ended March 31, 2014 and 2013, respectively.

One customer in Network Integration accounted for 10% and 22% of total net accounts receivable as of March 31, 2014, and December 31, 2013, respectively. Another Network Integration customer accounted for 27% and 27% of total net accounts receivable as of March 31, 2014, and December 31, 2013, respectively.

The following table summarizes external revenue by geographic region (in thousands):

	Three months ended
	March 31,
	2014		2013
United States		$12,856		$12,125
Americas (Excluding the U.S.)	556		1,625
Europe	26,579		23,421
Asia Pacific	2,327		1,734
Total		$42,318		$38,905

Revenue from external customers attributed to Italy totaled $20.4 million and $18.1 million for the three months ended March 31, 2014 and March 31, 2013 respectively.

The following table summarizes long-lived assets, consisting of property and equipment, by geographic region (in thousands):

	March 31, 2014		December 31, 2013
Americas		$3,239		$3,326
Europe	2,119		2,194
Asia Pacific	33		35
Total		$5,391		$5,555

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The following table provides selected Statement of Operations information by business segment (in thousands):

	Three months ended
	March 31,
	2014			2013
Gross profit
Network Equipment	$	10,759		$	10,766
Network Integration	2,490			2,257
Total before intersegment adjustments	13,249			13,023
Corporate unallocated and intersegment adjustments(1)	2			4
Total	$	13,251		$	13,027
Depreciation expense
Network Equipment	$	536		$	300
Network Integration	49			53
Corporate	39			48
Total	$	624		$	401
Operating income (loss)
Network Equipment	$	(2,839	)	$	(1,119	)
Network Integration	845			691
Total before intersegment adjustments	(1,994		)	(428		)
Corporate unallocated operating loss and adjustments (1)	(1,855		)	(3,585		)
Total	$	(3,849	)	$	(4,013	)

(1) Adjustments reflect the elimination of intersegment revenue and profit in inventory.

The following tables provide selected Balance Sheet and Statement of Cash Flow information by business segment (in thousands):

	Three months ended
	March 31,
	2014		2013
Additions to Fixed Assets
Network Equipment	$	239	$	922
Network Integration	33		32
Corporate	80		1
Total	$	352	$	955

	March 31, 2014		December 31, 2013
Total Assets
Network Equipment		$45,329		$48,955
Network Integration	57,495		54,625
Corporate and intersegment eliminations	22,552		24,367
Total		$125,376		$127,947

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11. Indemnification Obligations

Our agreements for the sale of our Source Photonics, CES, Interdata and Alcadon businesses include customary indemnification obligations running to the respective buyers.

We have agreements whereby our officers and directors are indemnified for certain events or occurrences while the officer or director is, or was, serving at our request in such capacity. The maximum potential amount of future payments we could be required to make under these indemnification agreements is unlimited; however, we retain directors and officers insurance that reduces our exposure and enables us to recover portions of amounts paid. As a result of our insurance coverage, we believe the estimated fair value of these indemnification agreements is minimal. Accordingly, no liabilities have been recorded for these agreements as of March 31, 2014 and December 31, 2013.

12. Litigation

We are subject to legal claims and litigation in the ordinary course of business, including but not limited to product liability, employment and intellectual property claims. The outcome of any such matters is currently not determinable. In addition, we were party to the litigation set forth below.

From June to August 2008, five purported stockholder derivative and securities class action lawsuits were filed in the U.S. District Court in the Central District of California and one derivative lawsuit was filed in the Superior Court of the State of California against the Company and certain of our former officers and directors. The five lawsuits filed in the Central District of California were consolidated. Claims were asserted under Section 10(b) and 20(a) of the Exchange Act, and Rule 10b-5 promulgated thereunder. In November 2010, the judge overseeing the securities class action lawsuits gave final approval to a stipulated $10.0 million settlement agreement, which was covered by our director and officer insurance policies. The federal and state derivative lawsuits were not settled and continued to be litigated.

As of January 4, 2013, all pending litigation in the federal and state derivative actions was stayed by agreement of the parties pending final Federal Court approval of a settlement between derivative plaintiffs, individual defendants and the Company. On April 8, 2013 the Federal Court preliminarily approved a Stipulation of Settlement (the "Settlement Stipulation"), which included, among other things, (a) a release of all claims relating to the derivative litigation for the Company, the individual defendants and the plaintiffs; (b) a provision that $2.5 million in cash be paid to the Company by the Company's insurance carriers; (c) payment of attorneys' fees to plaintiffs' counsel including $500,000 in cash and 250,000 warrants to purchase the Company's Common Stock, with a five-year term and strike price of the closing price of the Company's Common Stock on the date an order of the federal District Court approving the settlement becomes final; (d) the continued payment by the Company of applicable reasonable attorneys' fees for the individual defendants. On June 6, 2013, the Federal Court granted final approval of the Settlement Stipulation and on June 13, 2013 entered Judgment dismissing the federal derivative action with prejudice. On June 24, 2013, the State Court entered a dismissal with prejudice of the state derivative action. The Company was also required to undertake certain corporate governance reform actions,all of which are either in process of implementation or have been implemented.

A majority of the costs related to the Company's and defendants' defense of these actions was paid by the Company's insurance carriers under its director and officer insurance policies, including the securities class action settlement. Insurance proceeds paid to the Company upon settlement of the derivative litigation were $1.0 million. However, MRV has paid and accrued $1.9 million in payment for services of defense counsel and other parties through December 31, 2013 above the insured amount.

From time to time, MRV has received notices from third parties alleging possible infringement of patents with respect to product features or manufacturing processes. Management believes such notices are common in the communications industry because of the large number of patents that have been filed on these subjects. The Company's

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policy is to discuss these notices with the parties in an effort to demonstrate that MRV's products and/or processes do not violate any patents. The Company has been involved in such discussions with Alcatel-Lucent SA, Apcon, Inc., Finisar Corporation, International Business Machines, Mediacom Broadband LLC, Ortel Communications, Ltd., Nortel Networks Corporation, Rockwell Automation, Inc. and The Lemelson Foundation in the past.

MRV and its subsidiaries have been named as a defendant in other lawsuits involving matters that the Company considers routine to the nature of its business. Management is of the opinion that the ultimate resolution of such matters will not have a material adverse effect on our business, operating results and financial condition.

13. Accounts Receivable Factoring

The Company's Italian subsidiary has agreements with unrelated third-parties for the factoring of specific accounts receivable in Italy in order to reduce the amount of working capital required to fund such receivables. At March 31, 2014, Tecnonet's factoring facility agreements permitted the factoring of up to €10.0 million, or $13.8 million, worth of receivables in operations outside of the United States. The factoring of accounts receivable under these agreements is accounted for as a sale in accordance with ASC 860 Transfers and Servicing. The Company has no retained interests or servicing liabilities related to the accounts receivable that have been sold in Italy.

At March 31, 2014, and December 31, 2013, the face amount of total outstanding accounts receivable pursuant to these agreements was $13.8 million and $17.2 million, respectively. Receivables transferred to the factor are derecognized at the date of sale and the proceeds are recorded at fair value. Proceeds consist of a receivable due from the factor. Cash received from the factor is recorded as a reduction of the receivable due from the factor. The related outstanding balances due from the factor were $6.0 million and $7.7 million as of March 31, 2014 and December 31, 2013, respectively, and are included in other receivables on the accompanying balance sheets The related losses on sale were $0.04 million and $0.1 million for the three months ended March 31, 2014 and March 31, 2013, and is included in interest expense on the accompanying consolidated statements of operations.

14. Share Repurchase

On August 15, 2013, the Company Board of Directors terminated the Company's existing stock repurchase plan and approved a replacement repurchase plan on substantially the same terms in an amount up to $7.0 million that is scheduled to expire on May 14, 2014. Since August 15, 2013 the Company has purchased 127,510 shares at a total cost of approximately $1.3 million during the year ended December 31, 2013, leaving $5.7 million for future purchase. No additional shares were repurchased during the three months ended March 31, 2014.

15. Income Taxes

The following table provides details of income taxes (in thousands, except percentages):

	Three months ended
	March 31,
	2014			2013
Loss before provision for income taxes		($3,966	)		($4,128	)
Provision for income taxes	251			306
Effective tax rate	(6		)%	(7		)%

The effective tax rate for the three months ended March 31, 2014 fluctuates based on the amount of pre-tax income or loss generated in the various jurisdictions where we conduct operations and pay income tax. In addition, various jurisdictions that generate losses do not benefit from the losses generated due to a valuation allowance placed on those benefits

As of December 31, 2013, we had net operating losses ("NOLs") of $172.3 million, $93.1 million, and $95.8 million for federal, state, and foreign income tax purposes, respectively. Additionally, the Company had capital loss carryforwards of $110.5 million and $24.0 million for federal and state tax purposes, respectively. The capital loss carry forwards, which were generated by the sale of Source Photonics, expire in 2015. Under the Internal Revenue Code, if a corporation undergoes an "ownership change," the corporation's ability to use its pre-change NOLs, capital loss carry forwards and other pre-change tax attributes to offset its post-change income may be limited. An

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ownership change is generally defined as a greater than 50% change in its equity ownership by value over a three-year period. We may experience an ownership change in the future as a result of subsequent shifts in our stock ownership. If we were to trigger an ownership change in the future, our ability to use any NOLs and capital loss carry forwards existing at that time could be limited. As of March 31, 2014, the US federal and state NOLs had a full valuation allowance.

Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with the Financial Statements and Notes thereto included elsewhere in this Form10-Q, and Items 6, 7 and 8 of our2013Form10-K. The discussion in this Form10-Q contains certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, and may qualify for the safe harbor provided for in Section21E of the Exchange Act. Forward-looking statements are statements other than statements of historical fact and may be identified by use of such terms as “expects,”“anticipates,”“intends,”“potential,”“estimates,”“believes,”“may,”“should,”“could,”“will,”“would,” and words of similar import.

Forward-looking statements involve known and unknown risks and uncertainties that could cause actual results to differ materially from those projected. In addition, the statements in this Form10-Q may involve certain risks, uncertainties and assumptions, the likelihood of which are difficult to assess and may not occur, including risks that each of its business segments may not make the expected progress in its respective market, or that management's long-term strategy may not achieve the expected results. Other risks and uncertainties relate to delayed lead times in receiving components and delayed delivery times to customers due to short-term capacity constraints, potential changes in relationships with MRV's customers and suppliers and their financial condition, MRV's success in developing, introducing and shipping product enhancements and new products, competition in our market segments, market acceptance of new products and our ability to succeed in entering new markets, continued market acceptance of existing products and continued success in selling the products of other companies, product price discounts and general pricing pressure in certain of our markets, the timing and amount of significant orders from customers, obsolete inventory or product returns, warranty and other claims on products, the continued ability of MRV to protect its intellectual property rights and avoid onerous licensing fees, changes in product mix, maturing product life cycles, implementation of operating cost structures that align with revenue growth, political instability in areas of the world in which MRV operates or sells its products and services, currency fluctuations, changes in accounting rules, general economic conditions, as well as changes in such conditions specific to our market segments, maintenance of our inventory and production backlog, supply constraints directly or indirectly caused by natural disasters, litigation, including but not limited to patent infringement claims and litigation related to MRV's historical stock option granting practices.

In light of the risks and uncertainties inherent whenever matters or events expected to occur or not occur in the future are discussed, there can be no assurance that the forward-looking information contained in this Form10-Q will in fact transpire or prove to be accurate. All subsequent written and oral forward-looking statements attributable to the Company or persons acting on our behalf are expressly qualified in their entirety by this introduction. In light of the risks and uncertainties in all such projected operational matters, the inclusion of forward-looking statements in this Form10-Q should not be regarded as a representation by the Company or any other person that the objectives or plans of the Company will be achieved or that any of the Company's operating expectations will be realized. Revenue and results of operations are difficult to forecast and could differ materially from those projected in the forward-looking statements contained in this Form10-Q for the reasons detailed in Item 1A “Risk Factors” of Part I on the Company's 2013 Form 10-K and as set forth in item 1A of Part II of this Form 10-Q. Readers should not place undue reliance on forward-looking statements, which reflect management's view only as of the date of this Form10-Q. The Company undertakes no obligation to amend this Form10-Q or revise publicly these forward-looking statements (other than pursuant to requirements imposed on registrants pursuant to Item 1A under PartII of Form10-Q) to reflect subsequent events or circumstances. Readers should also carefully review the risk factors described in other documents the Company files from time to time with the SEC and the cautionary statements contained in our press releases when we provide forward-looking information.

Overview

We supply communications equipment and services to carriers, governments and enterprise customers worldwide. We conduct our business along two principal segments: Network Equipment and Network Integration. We evaluate segment performance based on the revenues, gross profit and operating expenses of each segment. We do not evaluate segment performance on additional financial information. As such, there are no separately identifiable Statements of Operations data below operating income. Our Network Equipment segment provides communications

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equipment that facilitates access, transport, aggregation and management of voice, data and video traffic in networks, data centers and laboratories used by telecommunications service providers, cable operators, enterprise customers and governments worldwide. Our Network Integration segment operates primarily in Italy, servicing Tier One carriers, regional carriers, large enterprises, and government institutions. Network Integration provides network system design, integration and distribution services that primarily include products manufactured by third party vendors. We market and sell our products worldwide, through a variety of channels, which include a dedicated direct sales force, manufacturers' representatives, value-added-resellers, distributors and systems integrators.

We believe that the past few years of sustained softness in the global economy has affected our revenues and operating results, particularly in the Italian market.  When economic uncertainties increase, our customers often take a more cautious approach in their capital expenditures, resulting in order delays, slowing deployments, and lengthening sales cycles. This may lead to increased competition for projects and price pressures resulting in lower gross margins. Although we are starting to see an improvement in market conditions in the latter part of 2013, such market opportunities and dynamics are in their early stages, and it remains uncertain as to their current and long term effect on our business. Despite these economic uncertainties, we believe that our customers need to continue investing in their networks to meet the growth in consumer and enterprise use of high-bandwidth communications services.  We believe in our longer term market opportunities, but we are uncertain how long the downturn in economic conditions will continue and how our customers will interpret and react to market conditions.

We continue to encounter very competitive markets, particular within Italy. In the Italian market, securing new opportunities often requires less favorable pricing on the third party products that we sell to Tier One carriers. This less favorable pricing combined with the protracted cash conversion cycle inherent in Italy place cash resources at risk. These market conditions can adversely affect our operations and cause fluctuations in our results.

Our business involves reliance on foreign-based offices. Some of our divisions, outside subcontractors and suppliers are located in foreign countries, including Argentina, Australia, Canada, Denmark, Germany, Israel, Italy, Netherlands, Philippines, Poland, Russia, Taiwan, Thailand, and United Kingdom. For the three months ended March 31, 2014, and 2013, foreign revenue constituted 78.0% and 65.0%, respectively, of our total revenue. The majority of our foreign sales are to customers located in the European region, with the remaining foreign sales primarily to customers in the Asia Pacific region.

At March 31, 2014 we had $23.2 million in cash and cash equivalents, $0.2 million in restricted time deposits, and $6.8 million in short-term debt.

Critical Accounting Policies

Our discussion and analysis of the Company's financial condition and results of operations are based upon the financial statements, which have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). We follow accounting standards set by the Financial Accounting Standards Board (“FASB”) to ensure we consistently report our financial condition, results of operations, and cash flows in conformity with GAAP. References to GAAP issued by the FASB in this Form 10-Q are to the FASB Accounting Standards of Codification.

The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses, and related disclosure of contingent assets and liabilities. We believe that the estimates, assumptions and judgments involved in the accounting policies described below have the greatest potential impact on our financial statements, so we consider these to be our critical accounting policies. Because of the uncertainty inherent in these matters, actual results could differ from the estimates we use in applying the critical accounting policies. Certain of these critical accounting policies affect working capital account balances, including the policies for revenue recognition, allowance for doubtful accounts, inventory reserves and income taxes. These policies require that we make estimates in the preparation of our financial statements as of a given date.

Within the context of these critical accounting policies, we are not currently aware of any reasonably likely events or circumstances that would result in materially different amounts being reported.

Revenue Recognition.    Our major revenue-generating products consist of switches and routers, console management, physical layer products, and fiber optic components. We generally recognize product revenue, net of sales discounts, returns and allowances, in accordance with ASC 605 Revenue Recognition, when persuasive evidence of an arrangement exists, delivery has occurred and all significant contractual obligations have been satisfied, the fee is fixed or determinable and collection is considered reasonably assured. Products are generally shipped "FOB shipping

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point," with no right of return and revenue is recognized upon shipment. If revenue is to be recognized upon delivery, such delivery date is tracked through information provided by the third party shipping company we use to deliver the product to the customer. Network Integration resells third party products. We recognize revenue on these sales on a gross basis, as a principal, because we are the primary obligor in the arrangement, we are exposed to inventory and credit risk, we negotiate the selling prices, and we sell the products as part of a solution in which we provide services. Sales of services and system support are deferred and recognized ratably over the contract period in accordance with ASC 605-20 Services. Sales to end customers with contingencies, such as rights of return, rotation rights, conditional acceptance provisions and price protection, are infrequent and insignificant and are deferred until the contingencies have been satisfied or the contingent period has lapsed. For sales to distributors, we generally recognize revenue when product is sold to the distributor rather than when the product is sold by the distributor to the end user. In certain circumstances, distributors have limited rights of return, including stock rotation rights, and/or are entitled to price protection, where a rebate credit may be provided to the customer if we lower our price on products held in the distributor's inventory. We estimate and establish allowances for expected future product returns and credits in accordance with ASC 605. We record a reduction in revenue for estimated future product returns and future credits to be issued to the customer in the period in which revenue is recognized, and for future credits to be issued in relation to price protection at the time we make changes to our distributor price book. We monitor product returns and potential price adjustments on an ongoing basis and estimate future returns and credits based on historical sales returns, analysis of credit memo data, and other factors known at the time of revenue recognition.

We generally warrant our products against defects in materials and workmanship for 90 days to three year periods. The estimated cost of warranty obligations and sales returns and other allowances are recognized at the time of revenue recognition based on contract terms and prior claims experience.

Accounting for Multiple-Element Arrangements entered into or materially altered after January 1, 2011. In October 2009, the FASB amended ASC 605-25 and ASC 985 and we adopted the amendments prospectively effective January 1, 2011. In accordance with the amendments, we allocate arrangement consideration at the inception of the arrangement to all deliverables using the relative selling price method. The selling price we use for each deliverable is based on (a) vendor-specific objective evidence if available; (b) third-party evidence if vendor-specific objective evidence is not available; or (c) estimated selling price if neither vendor-specific objective evidence nor third-party evidence is available. We allocate discounts in the arrangement proportionally on the basis of the selling price of each deliverable. In accordance with the amendments, we no longer apply the software revenue guidance in ASC Subtopic985-605 to tangible products containing software components and non-software components that function together to deliver the tangible product's essential functionality.

Allowance for Doubtful Accounts. We make ongoing estimates relating to the collectability of our accounts receivable and maintain a reserve for estimated losses resulting from the inability of customers to meet their financial obligations to us. In determining the amount of the reserve, we consider our historical level of credit losses and make judgments about the creditworthiness of significant customers based on ongoing credit evaluations. Because we cannot precisely predict future changes in the financial stability of our customers, actual future losses from uncollectible accounts may differ from our estimates. If the financial condition of our customers deteriorates, resulting in their inability to make payments, a larger reserve may be required. In the event we determine that a change in the allowance is appropriate, we would record a credit or a charge to selling, general and administrative expense in the period in which we make such a determination.

Concentration of Credit Risk.    Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents placed with high credit quality institutions and accounts receivable due from customers. We perform ongoing credit evaluations of our customers and maintain reserves for potential credit losses.

Inventory.    We make ongoing estimates relating to the market value of inventories, based upon our assumptions about future demand and market conditions. If we estimate that the net realizable value of our inventory is less than the cost of the inventory recorded on our books, we record an adjustment to the cost basis equal to the difference between the cost of the inventory and the estimated net realizable market value. This adjustment is recorded as a charge to cost of goods sold, and includes estimates for excess quantities and obsolete inventory. If changes in market conditions result in reductions in the estimated market value of our inventory below previous estimates, we would make further adjustments in the period in which we make such a determination and record a charge to cost of goods sold. At the time of recording the adjustment, a new, lower cost basis for that inventory is established, and subsequent changes in facts and circumstances do not result in the restoration of, or increase in, that newly established cost basis.

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Software Development Costs. In accordance with ASC 985-20 Accounting for the Costs of Computer Software to be Sold, Leased, or Otherwise Marketed, development costs related to software products are expensed as incurred until the technological feasibility of the product has been established. Technological feasibility occurs when a working model is completed or a detail program design exists. After technological feasibility is established, additional costs are capitalized.

We believe our process for internally developed software is essentially completed concurrent with the establishment of technological feasibility, and, accordingly, no software development costs for internally developed software have been capitalized to date.

Internal Use Software Development. In accordance with ASC 350-40 Intangibles - Goodwill and Other, Internal-Use Software, any software that we acquire, internally develop, or modify solely to meet our internal needs, and for which we have no substantive plan to market the software externally, is capitalized.

Income Taxes. As part of the process of preparing our financial statements, we estimate the income taxes in each of the jurisdictions in which we operate. This process involves estimating the current income tax exposure together with assessing temporary differences resulting from differing treatment of items, such as deferred revenue, for income tax and accounting purposes. These differences result in deferred income tax assets and liabilities, which are included in our Balance Sheets. We assess the likelihood that our deferred income tax assets will be recovered from future taxable income and, to the extent we believe that recovery is not likely, we establish a valuation allowance. To the extent we establish a valuation allowance or increase this allowance in a period, we include an expense within the income tax provision in the Statements of Operations.

We utilize significant management judgment to determine the provision for income taxes, deferred income tax assets and liabilities, including uncertain tax positions, and any valuation allowance recorded against net deferred income tax assets. Management periodically evaluates the deferred income tax assets as to whether it is likely that the deferred income tax assets will be realized. We establish a valuation allowance on the deferred income tax asset at the time we determine the asset is not likely to be realized. If we later determine that it is more likely than not that a deferred tax asset will be realized, we release the valuation allowance and record a credit within the Statements of Operations.

Share-Based Compensation.    We determine the fair value of stock options using the Black-Scholes valuation model as permitted under ASC 718 Compensation - Stock Compensation. The assumptions used in calculating the fair value of share-based payment awards represent our best estimates. Our estimates may be impacted by certain variables including stock price volatility, employee stock option exercise behaviors, additional stock option grants, estimates of forfeitures, and the related income tax impact. (See Note 9 “Share-Based Compensation” to the Financial Statements in Item 1, Part 1 of this Form 10-Q for further discussion.)

Currency Rate Fluctuations

Changes in the relative values of non-U.S. currencies to the U.S. dollar affect our results. We conduct a significant portion of our business in foreign currencies, including the euro, the Taiwan dollar and the Israeli new shekel. For the three months ended March 31,2014 and 2013, 78% and 65% of revenue, respectively, and 41% and 36% of operating expenses, respectively, were incurred at subsidiaries with a reporting currency other than the U.S. dollar. For the three months ended March 31,2014, these currencies strengthened slightly against the U.S. dollar compared to the three months ended March 31,2013, so revenue and expenses in these currencies translated into slightly fewer dollars than they would have in the prior period. The euro and Israeli new shekel strengthened 4% and 6% respectively against the U.S. dollar in three months ended March 31,2014 compared to three months ended March 31,2013. The Company's Taiwan subsidiary, Appointech, Inc., is included in Network Equipment that also includes our Optical Communications Systems ("OCS") division. Relative to OCS, the revenues and related operating gross profit and operating expenses are not material and the change in foreign currency did not have a material impact on the results for the three months ended March 31, 2014 compared to the three months ended March 31,2013. Additional discussion of foreign currency risk and other market risk is included in Part I, Item 3 “Quantitative and Qualitative Disclosures About Market Risk” of this Form 10-Q.

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Management Discussion Snapshot

The following table sets forth, for the periods indicated, certain consolidated and segment Statements of Operations data (dollars in thousands):

	Three months ended March 31,
	2014					2013
	$			% (1)		$			% (1)
Revenue(1) (2)		$42,318		100	%		$38,905		100	%
Network Equipment	22,319			53		20,946			54
Network Integration	20,053			47		17,982			46
Gross profit (3)	$13,251			31		$13,027			33
Network Equipment	10,759			48		10,766			51
Network Integration	2,490			12		2,257			13
Operating expenses (4)	$17,100			40		$17,040			44
Network Equipment	13,598			61		11,884			57
Network Integration	1,645			8		1,567			9
Operating income (loss) (3) (4)	$(3,849)			(9	)	$(4,013)			(10	)
Network Equipment	(2,839		)	(13	)	(1,119		)	(5	)
Network Integration	845			4		691			4

___________________________________

(1) Consolidated Statements of Operations data and segment revenue data express percentages as a percentage of consolidated revenue. Other Statements of Operations data by segment express percentages as a percentage of applicable segment revenue.

(2) Revenue information by segment includes intersegment revenue reflecting sales of Network Equipment to Network Integration.

(3) Consolidated gross profit data reflects adjustments for intersegment eliminations.

(4) Consolidated operating expenses include corporate unallocated operating expenses.

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Three months ended March 31,2014 Compared to the Three months ended March 31,2013

Revenue

The following table summarizes revenue by segment, including intersegment sales (dollars in thousands):

							Favorable/(Unfavorable)
Three months ended March 31:	2014			2013			$ Change			% Change		% Change constant currency(1)
Network Equipment	$	22,319		$	20,946		$	1,373		7	%	7	%
Network Integration	20,053			17,982			2,071			12		7
Before intersegment adjustments	42,372			38,928			3,444			9		7
Intersegment adjustments (2)	(54		)	(23		)	(31		)	135		145
Total	$	42,318		$	38,905		$	3,413		9	%	7	%

___________________________________

(1) Percentage information in constant currencies in the table above and in the text below excludes the effect of foreign currency translation on reported results. Constant currency results were calculated by translating the current year results at prior year average exchange rates.

(2) Adjustments represent the elimination of intersegment revenue.

Consolidated revenue for the first quarter of 2014increased $3.4 million, or 9%, compared to the first quarter of 2013, due to a $2.1 million, or 12%, increase in Network Integration revenue, and a $1.4 million, or 7%, increase in Network Equipment revenue.

Network Equipment.    Revenue generated from Network Equipment increased $1.4 million, or 7%, in the first quarter of 2014 compared to the first quarter of 2013. The increase is primarily due to higher product revenues that were partially offset by lower service revenue volume. Revenues for our carrier Ethernet networking and network infrastructure management products increased in the first quarter of 2014 compared to same period in the prior year, which was partially offset by a decrease in optical transport and related product categories. Service revenues were down 17% in the first quarter of 2014 compared to the same period last year primarily due to the roll off of older deferred service contracts that were using a grandfathered revenue recognition methodology. Geographically, the increase in revenues at Network Equipment was attributable to growth in our Europe and Asia Pacific regions. The improvement in our Europe region was attributable to increased sales to our large customers and channel partners that were helped by an improvement in the European economy. In Asia Pacific, there was increased order volume over the same period in the prior year from a Tier One carrier. Our Americas region was down due to softness in our smaller service providers and some budgetary delays at some of our larger customers. The foreign exchange impact to Network Equipment revenue was not material.

The following table summarizes Network Equipment revenue by geographic region (dollars in thousands):

					Favorable/(Unfavorable)
Three months ended March 31:	2014		2013		$ Change			% Change
Revenue, excluding intersegment sales:
Americas		$13,412		$13,750		($338	)	(2	)%
Europe	6,526		5,439		1,087			20
Asia Pacific	2,327		1,734		593			34
Total external sales	22,265		20,923		1,342			6
Sales to Network Integration:
Europe	54		23		31			135
Total intersegment sales	54		23		31			135
Total Network Equipment revenue		$22,319		$20,946		$1,373		7	%

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Network Integration.    Revenue generated from Network Integration increased $2.1 million, or 12%, in the first quarter of 2014 compared to the first quarter of 2013. The increase was due to a $1.7 million, or 17%, increase in product revenue and a $0.4 million, or 5%, increase in service revenues at Tecnonet. While Tecnonet has seen an increase in order volume, the Italian public telecommunications market continues to be negatively impacted by the current political climate and challenging economic conditions. The service revenue was the result of a continued focus on this aspect of the business that has higher margins and potential for growth. Total revenue from this segment would have been $0.8 million, or 4% lower in the first quarter of 2014, compared to the first quarter of 2013, had foreign currency exchange rates remained the same as they were in the first quarter of 2013. All revenue in Network Integration was generated in Italy.

Gross Profit

The following table summarizes gross profit by segment (dollars in thousands):

					Favorable/(Unfavorable)
Three months ended March 31:	2014		2013		$ Change			% Change		% Change constant currency (1)
Network Equipment		$10,759		$10,766		($7	)	—	%	—	%
Network Integration	2,490		2,257		233			10		6
Before intersegment adjustments	13,249		13,023		226			2		1
Adjustments (2)	2		4		(2		)	(50	)	(80	)
Total		$13,251		$13,027		$224		2	%	1	%

(1) Percentage information in constant currencies in the table above and in the text below excludes the effect of foreign currency translation on reported results. Constant currency results were calculated by translating the current year results at prior year average exchange rates.

(2) Adjustments represent the change in the elimination of intersegment profit in ending inventory in order to reconcile to consolidated gross profit.

Consolidated gross profit increased $0.2 million in the first quarter of 2014 compared to the prior year first quarter, principally due to the 9%increase in revenue that was partially offset by a 220 basis points decline in gross profit as a percentage of revenue (gross margin) primarily due to pressure on pricing and revenue mix. Gross margin for the first quarter of 2014 was 31.3%, as compared to 33.5% in the first quarter of 2013. The decrease was due to the shift of segment revenue mix toward a higher percentage of total revenue coming from Network Integration, which has lower gross margins than Network Equipment, and a decrease in Network Equipment gross margins. These decreases in gross margin were partially offset by a more favorable consolidated product to service revenue mix in the first quarter of 2014 as compared to the first quarter of 2013. In the first quarter of 2014, the consolidated effect of the change in constant currency remained relatively low compared to the first quarter of 2013 as the relatively low gross profit contribution of Network Integration mitigates the fluctuation of the Euro.

Network Equipment.  Gross profit for Network Equipment in the first quarter of 2014 remained unchanged compared to the first quarter of the prior year. The effect of higher sales volume was essentially offset by a 320 basis point decrease in gross margins. An increase in sales to our European channel partners, which have lower gross margins and lower pricing of mature products in advance of new products combined to have a negative impact on Network Equipment's gross margins. In addition, we had a shift in the mix of product revenue toward our lower gross margin products, a negative effect from lower volume efficiency within service gross margins, and a write down of inventory being replaced with our newly launched OptiDriver product line. These effects partially offset by lower production labor and overhead costs arising from cost saving initiatives implemented during the fourth quarter of 2013.

Network Integration.  Gross profit in the first quarter of 2014 as compared to the first quarter of 2013 for Network Integration increased $0.2 million, or 10%. The increase was essentially the result of the volume impact of the $2.1 million increase in revenue. Gross margins decreased slightly in the first quarter compared to the same quarter last year due to a revenue mix favoring higher product revenues, which have lower gross margins. The mix impact was partially offset by a slight improvement is hardware gross margins. In the first quarter of 2014, the effect of the change in constant currency was $0.1 million, or 4%, compared to the first quarter of 2013.

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Operating Expenses

The following table summarizes operating expenses by segment (dollars in thousands):

					(Favorable)/Unfavorable
Three months ended March 31:	2014		2013		$ Change			% Change		% Change constant currency (1)
Network Equipment		$13,598		$11,884		$1,714		14	%	14	%
Network Integration	1,645		1,567		78			5	%	1	%
Total segment operating expenses	15,243		13,451		1,792			13	%	13	%
Corporate unallocated operating expenses and adjustments (2)	1,857		3,589		(1,732		)	(48	)%	(48	)%
Total		$17,100		$17,040		$60		—	%	—	%

(1) Percentage information in constant currencies in the table above and in the text below excludes the effect of foreign currency translation on reported results. Constant currency results were calculated by translating the current year results at prior year average exchange rates.

(2) Corporate unallocated operating expenses include unallocated product development, and selling, general and administrative expenses.

Consolidated operating expenses in the firstquarter of 2014 were $17.1 million, or 40% of revenue, compared to $17.0 million, or 44% of revenue, in the first quarter of 2013, an increase of $0.1 million. The increase is primarily due to an increase in Network Integration expenses of $0.1 million and an increase of $1.7 million in expenses at Network Equipment that was partially offset by $1.7 million decrease of Corporate unallocated operating expenses as discussed below.

Network Equipment.    Operating expenses in Network Equipment for the first quarter of 2014 were $13.6 million, or 61% of revenue, compared to $11.9 million, or 57% of revenue in the firstquarter of 2013. The $1.7 million, or 14%, increase was planned for and was due to a planned $0.9 million increase in salaries for the hiring of new engineers as well as outside engineering support costs, a $0.3 million increase in severance costs to realign U.S. sales organization, $0.2 million increase in commissions, $0.2 million in increased trade show and sales support costs, a $0.2 million increase in back office and IT support costs primarily associated with our ERP system, and $0.2 million increase in salary expense of employees hired in 2013 after Q1. Partially offsetting these increases was $0.2 million in reduction for our bad debt reserves.

Network Integration.    Operating expenses in Network Integration for the firstquarter of 2014 were $1.7 million, or 8% of revenue, compared to $1.6 million, or 9% of revenue, in the firstquarter of 2013. The increase was mainly due to $0.2 million of sales support costs that were partially offset by savings of $0.1 million in administrative overhead. In the first quarter of 2014, the consolidated effect of the change in constant currency was $0.1 million or 4% compared to the first quarter of 2013.

Corporate. Corporate expenses decreased by $1.7 million in the first quarter of 2014 compared to the first quarter of 2013. The decrease partially resulted from $0.7 million in lower labor and consulting fees incurred during the 2013 transition of the corporate office and lower audit fees of $0.4 million. The first quarter of 2013 was also burdened by $1.0 million of legal fees arising from the derivative litigation that was settled in June 2013 and costs for an investigation of claims by a former employee. These decreases were partially offset by recording a charge in the first quarter of 2014 of $0.4 million for the revaluation of warrants issued in accordance with the June 2013 settlement of the derivative litigation.

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Operating Income (Loss)

The following table summarizes operating income (loss) by segment (dollars in thousands):

							Favorable/(Unfavorable)
Three months ended March 31:	2014			2013			$ Change			% Change		% Change constant currency(1)
Network Equipment		($2,839	)		($1,119	)		($1,720	)	154	%	154	%
Network Integration	845			691			154			22		17
Total segment operating income (loss)	(1,994		)	(428		)	(1,566		)	366		374
Corporate unallocated and adjustments (2)	(1,855		)	(3,585		)	1,730			48		48
Total		($3,849	)		($4,013	)		$164		(4	)%	(3	)%

(1) Percentage information in constant currencies in the table above and in the text below excludes the effect of foreign currency translation on reported results. Constant currency results were calculated by translating the current year results at prior year average exchange rates.

(2) Adjustments represent the elimination of intersegment revenue and profit in inventory in order to reconcile to consolidated operating income (loss).

The $0.2 million, or 2%, increase in gross profit primarily led to a $0.2 million increase in our operating profit.

Network Equipment.   Network Equipment reported an operating loss of $2.8 million and $1.1 million in the firstquarter of 2014 and 2013, respectively. The change in operating profit was due to a $1.7 million planned increase in operating expenses. Operating margin was (13)% in 2014 and (5)% in 2013.

Network Integration.   Network Integration reported operating income of $0.8 million for the first quarter of 2014, compared to $0.7 million in the first quarter of 2013. The increase was primarily due to the $0.2 millionincrease in gross profit that was partially offset by a $0.1 million increase in operating costs. Network Integration operating margin was 4% in the first quarter of 2014 and 2013.

Interest Expense and Other Income, Net

Interest expense was $0.2 million in the first quarter of 2014 compared to $0.1 million in the first quarter of 2013. Other income, net, principally includes interest income on cash, cash equivalents and investments and gains and losses on foreign currency transactions and the litigation settlement.

Provision for Income Taxes

The tax provision in each of the quarters ending March 31, 2014 and 2013 was $0.3 million. Our income tax provision fluctuates based on the amount of pre-tax income or loss generated in the various jurisdictions where we conduct operations and pay income tax. The income tax expense on an operating loss of $3.8 million in the first quarter of 2014 is due to income tax associated with our foreign subsidiaries that do not benefit from our federal net operating loss carryforwards.

Tax Loss Carryforwards

As of December 31, 2013, we had net operating losses ("NOLs") of $172.3 million, $93.1 million, and $95.8 million for federal, state, and foreign income tax purposes, respectively. Additionally, the Company had capital loss carryforwards of $110.5 million and $24.0 million for federal and state tax purposes, respectively. Under the Internal Revenue Code, if a corporation undergoes an "ownership change," the corporation's ability to use its pre-change NOLs, capital loss carryforwards and other pre-change tax attributes to offset its post-change income may be limited. An ownership change is generally defined as a greater than 50% change in its equity ownership by value over a three-year period. We may experience an ownership change in the future as a result of subsequent shifts in our stock ownership. If we were to trigger an ownership change in the future, our ability to use any NOLs and capital loss carryforwards existing at that time could be limited. As of March 31, 2014, the U.S. federal and state NOLs continued to carry a full valuation allowance.

24

Liquidity and Capital Resources

During the three months ended March 31, 2014, our cash and restricted time deposits decreased from $27.8 million to $23.5 million, a decrease of $4.3 million. Our cash outflows included a net loss adjusted for non-cash expenses of $3.2 million including depreciation and amortization, share-based compensation, provision for doubtful accounts, and deferred taxes. In addition there were cash outflows from working capital of $3.3 million, including a $2.5 million increase in inventory due to higher volumes and timing of shipments ,a $1.1 million increase in accounts receivable due to lower factoring of receivables at Tecnonet, a $2.1 million decrease in accrued liabilities due to timing of payments of accrued expenses, offset by a $1.7 million decrease in other assets due to lower factoring of receivables at Tecnonet, a $0.5 million increase in accounts payable due to an increase in materials purchased, and a $0.4 million increase in deferred revenue as a result of the timing of shipments. Cash used in investing activities included $0.4 million in purchases of property, plant, and equipment. Cash provided by financing activities included additional borrowings of $6.8 million, partially offset by payments on short-term debt of $4.4 million at Tecnonet.

We periodically review our capital position and consider returning capital to stockholders through special dividends or share repurchases when cash on hand exceeds our foreseeable cash needs. We also periodically review the capital needs of our business units. We plan to invest approximately $3.8 million over the next 12 months to upgrade our infrastructure and equipment needed to support the Company's growth objectives in the Carrier Ethernet and optical transport markets among others. The nature of the Tecnonet business requires significant levels of working capital to finance the longer term receivables and the extended acceptance periods for its larger customers. The financing for its working capital needs is met through the use of receivable financing. Tecnonet has minimal capital requirements and does not conduct research and development. Therefore, we do not anticipate Tecnonet's business to require significant investment to support our strategic objectives in the Italian information technology market. We believe that cash on hand and cash flows from operations and existing financing will be sufficient to satisfy current operating needs, capital expenditures, and product development and engineering requirements for at least the next 12 months. We may seek to obtain additional debt or equity financing if we believe it appropriate. We may limit our ability to use available NOLs and capital loss carryforwards if we seek financing through issuance of additional equity securities.

The following table summarizes MRV's cash position including cash and cash equivalents, restricted time deposits and our short-term debt position (dollars in thousands):

	March 31, 2014		December 31, 2013
Cash
Cash and cash equivalents		$23,214		$27,591
Restricted time deposits	244		249
	23,458		27,840
Short-term debt	6,794		4,320
Cash in excess of debt		$16,664		$23,520
Ratio of cash to debt(1)	3.5		6.4

(1) Determined by dividing total cash by total debt.

Short-term Debt

Our short-term debt is related to Tecnonet, our Italian Network Integration subsidiary. Customer accounts receivables of Tecnonet have been pledged as collateral on the related borrowings.

The following table summarizes our short-term debt (in thousands):

	March 31, 2014		December 31, 2013		Increase (decrease)
Lines of credit secured by accounts receivable		$6,794		$4,320		$2,474
Total short-term debt		$6,794		$4,320		$2,474

25

The increase in short-term debt at March 31, 2014 includes additional borrowings of $6.8 million, partially offset by payments of $4.4 million and the impact of changes in foreign currency exchange rates.

Working Capital

The following table summarizes our working capital position (dollars in thousands).

	March 31, 2014		December 31, 2013
Current assets		$114,866		$117,170
Current liabilities	58,804		58,921
Working capital		$56,062		$58,249
Current ratio(1)	2.0		2.0

(1) Determined by dividing total current assets by total current liabilities.

Off-Balance Sheet Arrangements

We do not have transactions, arrangements or other relationships with unconsolidated entities that are reasonably likely to affect our liquidity or capital resources. We have no special purpose or limited purpose entities that provided off-balance sheet financing, liquidity or market or credit risk support, engaged in leasing, hedging, research and development services, or other relationships that expose us to liability that is not reflected on the face of the financials.

Contractual Obligations

During the quarter ended March 31, 2014, there were no material changes in our contractual obligations.

Internet Access to Our Financial Documents

We maintain a website at www.mrv.com. We make available, free of charge, either by direct access or hyperlink, our Annual Reports on Form10-K, Quarterly Reports on Form10-Q, Current Reports on Form8-K and amendments to those reports filed or furnished pursuant to Section13(a)or 15(d)of the Exchange Act as soon as reasonably practicable after such reports are electronically filed with, or furnished to, the SEC. Our reports filed with, or furnished to, the SEC are also available directly at the SEC's website at www.sec.gov.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Market risk represents the risk of loss that may impact our Consolidated Financial Statements through adverse changes in financial market prices and rates and inflation. Our market risk exposure results primarily from fluctuations in foreign exchange and interest rates. We manage our exposure to these market risks through our regular operating and financing activities and, in certain instances, through the use of derivative financial instruments. These derivative instruments are used to manage risks of volatility in interest and foreign exchange rate movements on certain assets, liabilities or anticipated transactions and create a relationship in which gains or losses on derivative instruments are expected to counter-balance the losses or gains on the assets, liabilities or anticipated transactions exposed to such market risks. As of March 31, 2014, we did not have any such derivative financial instruments outstanding.

Interest Rates.    Our investments and short-term borrowings expose us to interest rate fluctuations. Our cash and short-term investments are subject to limited interest rate risk, and are primarily maintained in money market funds and bank deposits. Our variable-rate short-term borrowings are also subject to limited interest rate risk because of their short-term maturities. Through certain foreign offices, and from time to time, we enter into interest rate swap contracts. As of March 31, 2014, we did not have any interest rate swap contracts outstanding. The economic purpose of entering into interest rate swap contracts is to protect our variable interest debt from significant interest rate fluctuations.

Foreign Exchange Rates.    We operate on an international basis with a significant portion of our revenues and expenses transacted in currencies other than the U.S. dollar. Fluctuation in the value of these foreign currencies affects

26

our results and will cause U.S. dollar translation of such currencies to vary from one period to another. We cannot predict the effect of exchange rate fluctuations upon future operating results. However, because we have revenues and expenses in each of these foreign currencies, the effect on our results of operations from currency fluctuations is reduced.

Through certain foreign offices, and from time to time, we enter into foreign exchange contracts in an effort to minimize the currency exchange risk related to accounts receivable or purchase commitments denominated in foreign currencies. These contracts cover periods commensurate with known or expected exposures, generally less than three months. As of March 31, 2014, we did not have any foreign exchange contracts outstanding.

Certain assets and liabilities, including certain bank accounts, accounts receivables, and accounts payables of some of our business units, exist in currencies other than the functional currency of the related business units and are sensitive to foreign currency exchange rate fluctuations. These currencies principally include the U.S. dollar, the euro, the Taiwan dollar, and the Israeli new shekel. Additionally, Tecnonet, which has a functional currency of the euro, has certain of its lines of credit denominated in U.S. dollars. When these transactions are settled in a currency other than the functional currency, we recognize a foreign currency transaction gain or loss.

When we translate the financial position and results of operations of subsidiaries with functional currencies other than the U.S. dollar, we recognize a translation gain or loss in other comprehensive income. Approximately 61.0% of our cost of sales and operating expenses are reported by these subsidiaries for the three months ended March 31,2014 compared to 59.0% for the same period for 2013. These currencies were generally stronger against the U.S. dollar for the three months ended March 31,2014 compared to the same period for 2013, so revenues and expenses in these countries translated into more dollars than they would have in the first three months of 2013. For the three months ended March 31,2014, we had approximately:

• $19.2 million in cost of goods and operating expenses recorded in euros;

• $0.2 million in cost of goods and operating expenses recorded in Taiwan dollars.

Had rates of these various foreign currencies been 10% higher relative to the U.S. dollar during the three months ended March 31, 2014, our costs would have increased to approximately:

• $21.1 million cost of goods and operating expenses recorded in euros;

• $0.2 million in cost of goods and operating expenses recorded in Taiwan dollars.

Fluctuations in currency exchange rates of foreign currencies have an impact on the U.S. dollar equivalent of such currencies included in cash and cash equivalents reported in our financial statements. The following table summarizes cash and cash equivalents held in various currencies and translated into U.S. dollars (in thousands).

	March 31, 2014		December 31, 2013
U.S. dollars		$19,060		$24,162
Euros	3,153		1,744
Taiwan dollars	21		63
Israeli new shekels	683		1,148
Other	297		474
Total cash and cash equivalents		$23,214		$27,591

Macro-economic uncertainties. We believe that the past few years of sustained softness in the global economy has affected our revenues and operating results, particularly in the Italian market.  When economic uncertainties increase, our customers often take a more cautious approach in their capital expenditures, resulting in order delays, slowing deployments, and lengthening sales cycles. This may lead to increased competition for projects and price pressures resulting in lower gross margins. Although we are starting to see an improvement in market conditions in the latter part of 2013, such market opportunities and dynamics are in their early stages, and it remains uncertain as to their current and long term effect on our business. Despite these economic uncertainties, we believe that our customers need to continue investing in their networks to meet the growth in consumer and enterprise use of high-

27

bandwidth communications services.  We believe in our longer term market opportunities, but we are uncertain how long the downturn in economic conditions will continue and how our customers will interpret and react to market conditions.

Valuation and qualifying accounts. 

Accounts Receivable Reserve	Three months ended
	March 31, 2014
Balance at beginning of period		$2,183
Charged to expense	(77		)
Write-offs	—
Foreign currency translation adjustment	(3		)
Balance at end of period		$2,103

Product Warranty Reserve	Three months ended
	March 31, 2014
Beginning balance		$578
Cost of warranty claims	(15		)
Accruals for product warranties	33
Foreign currency translation adjustment	—
Total		$596

Item 4. Controls and Procedures.

We maintain disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934, as amended (the "Exchange Act")) that are designed to ensure that information required to be disclosed in the reports we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the SEC and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

We carried out an evaluation, under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of our disclosure controls and procedures as of the end of the period covered by this report. Based on such evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were not effective at the reasonable assurance level as of the end of the period covered by this Quarterly Report as a result of an unremediated material weakness related to the inadequate design of internal controls over the accounting for deferred revenue as further described below.

Changes in Internal Controls

We designed and implemented remediation measures to address the material weakness identified as of December 31, 2013 and enhance our internal control over financial reporting. The material weakness related to the inadequate design of the internal control over the accounting for deferred revenue specific to the revenue cut-off procedures. Management has implemented changes in the design of the Company's internal control over the revenue cut-off procedures and performed testing of these control changes during the first quarter of 2014 with no exceptions identified.  Management will continue evaluating the internal controls over the accounting for deferred revenue during the second quarter of 2014 to ensure the material weakness has been fully remediated.

There have been no other changes in our internal control over financial reporting identified in connection with the evaluation required by paragraph (d) of Rule 13a-15 or 15d-15 under the Exchange Act that occurred during the most recent fiscal quarter that have materially affected, or are reasonably likely to materially affect, our internal control

28

over financial reporting. We are committed to a strong internal control environment and will continue to review the effectiveness of our internal controls over financial reporting and other disclosure controls and procedures.

29

PART II - OTHER INFORMATION

Item 1.

We are subject to legal claims and litigation in the ordinary course of business, including but not limited to product liability, employment and intellectual property claims. The outcome of any such matters is currently not determinable. In addition, we were party to the litigation set forth below.

From June to August 2008, five purported stockholder derivative and securities class action lawsuits were filed in the U.S. District Court in the Central District of California and one derivative lawsuit was filed in the Superior Court of the State of California against the Company and certain of our former officers and directors. The five lawsuits filed in the Central District of California were consolidated. Claims were asserted under Section 10(b) and 20(a) of the Exchange Act, and Rule 10b-5 promulgated thereunder. In November 2010, the judge overseeing the securities class action lawsuits gave final approval to a stipulated $10.0 million settlement agreement, which was covered by our director and officer insurance policies. The federal and state derivative lawsuits were not settled and continued to be litigated.

As of January 4, 2013, all pending litigation in the federal and state derivative actions was stayed by agreement of the parties pending final Federal Court approval of a settlement between derivative plaintiffs, individual defendants and the Company. On April 8, 2013 the Federal Court preliminarily approved a Stipulation of Settlement (the "Settlement Stipulation"), which included, among other things, (a) a release of all claims relating to the derivative litigation for the Company, the individual defendants and the plaintiffs; (b) a provision that $2.5 million in cash be paid to the Company by the Company's insurance carriers; (c) payment of attorneys' fees to plaintiffs' counsel including $500,000 in cash and 250,000 warrants to purchase the Company's Common Stock, with a five-year term and strike price of the closing price of the Company's Common Stock on the date an order of the federal District Court approving the settlement becomes final; (d) the continued payment by the Company of applicable reasonable attorneys' fees for the individual defendants. On June 6, 2013, the Federal Court granted final approval of the Settlement Stipulation and on June 13, 2013 entered Judgment dismissing the federal derivative action with prejudice. On June 24, 2013, the State Court entered a dismissal with prejudice of the state derivative action. The Company was also required to undertake certain corporate governance reform actions,all of which are either in process of implementation or have been implemented.

A majority of the costs related to the Company's and defendants' defense of these actions was paid by the Company's insurance carriers under its director and officer insurance policies, including the securities class action settlement. Insurance proceeds paid to the Company upon settlement of the derivative litigation were $1.0 million. However, MRV has paid and accrued $1.9 million in payment for services of defense counsel and other parties through December 31, 2013 above the insured amount.

From time to time, MRV has received notices from third parties alleging possible infringement of patents with respect to product features or manufacturing processes. Management believes such notices are common in the communications industry because of the large number of patents that have been filed on these subjects. The Company's policy is to discuss these notices with the parties in an effort to demonstrate that MRV's products and/or processes do not violate any patents. The Company has been involved in such discussions with Alcatel-Lucent SA, Apcon, Inc., Finisar Corporation, International Business Machines, Mediacom Broadband LLC, Ortel Communications, Ltd., Nortel Networks Corporation, Rockwell Automation, Inc. and The Lemelson Foundation in the past.

MRV and its subsidiaries have been named as a defendant in other lawsuits involving matters that the Company considers routine to the nature of its business. Management is of the opinion that the ultimate resolution of such matters will not have a material adverse effect on our business, operating results and financial condition.

Item 1A. Risk Factors

There have been no material changes in our risk factors from those set forth in our Annual Report on Form 10-K for the year ended December 31, 2013. For a more complete understanding of the risks associated with an investment in our securities, you should carefully consider and evaluate all of the information in this Form 10-Q, in combination with the more detailed description of our business in our 2013 Form 10-K.

30

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

Issuer Purchases of Equity Securities

In August 2013, our Board of Directors approved a repurchase plan for up to $7,013,838 of the Company's Common Stock. This repurchase plan is scheduled to expire on May 14, 2014. No repurchases were made during the quarter ending March 31, 2014.

Item 3. Defaults Upon Senior Securities

Not applicable.

Item 4. Mine Safety Disclosures

Not applicable.

31

Item 5  - Other Information

None.

Item 6. Exhibits

(a)    Exhibits

No.	Description
31.1	Certification of the Principal Executive Officer required by Rule 13a-14(a) of the Exchange Act (filed herewith)
31.2	Certification of the Principal Financial Officer required by Rule 13a-14(a) of the Exchange Act (filed herewith)
32.1	Certification of the Principal Executive Officer pursuant to 18 U.S.C. Section 1350 (furnished herewith)
32.2	Certification of the Principal Financial Officer pursuant to 18 U.S.C. Section 1350 (furnished herewith)
101.INS	XBRL Instance Document (filed herewith)
101.SCH	XBRL Taxonomy Extension Schema Document (filed herewith)
101.CAL	XBRL Taxonomy Calculation Linkbase Document (filed herewith)
101.LAB	XBRL Taxonomy Label Linkbase Document (filed herewith)
101.PRE	XBRL Taxonomy Presentation Linkbase Document (filed herewith)
101.DEF	XBRL Taxonomy Extension Definition Document (filed herewith)

32

SIGNATURES

Pursuant to the requirements of the Exchange Act, the Registrant has duly caused this Report to be signed on its behalf by the undersigned, thereunto duly authorized on May 8, 2014.

MRV COMMUNICATIONS, INC.

By: /s/ David S. Stehlin

David S. Stehlin

Chief Executive Officer

Principal Executive Officer

By: /s/ Stephen A. Garcia

Stephen A. Garcia

Chief Financial Officer

Principal Financial Officer

33

EX-31.1

Exhibit 31.1

CERTIFICATION OF THE PRINCIPAL EXECUTIVE OFFICER

REQUIRED BY RULE 13a-14(a) OF THE EXCHANGE ACT

I, David S. Stehlin, certify that:

1. I have reviewed this Quarterly Report of MRV Communications, Inc. on Form 10-Q for the period ended March 31, 2014;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles; 

c. evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and 

d. disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and 

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent function):

a. all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and 

b. any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	May 8, 2014
/s/ David S. Stehlin
David S. Stehlin
Chief Executive Officer
(Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER

REQUIRED BY RULE 13a-14(a) OF THE EXCHANGE ACT

I, Stephen A. Garcia, certify that:

1. I have reviewed this Quarterly Report of MRV Communications, Inc. on Form 10-Q for the period ended March 31, 2014;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent function):

a. all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	May 8, 2014
/s/ Stephen A. Garcia
Stephen A. Garcia
Chief Financial Officer
(Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATIONS OF THE PRINCIPAL EXECUTIVE OFFICER PURSUANT TO

18 U.S.C. SECTION 1350

In connection with the Quarterly Report of MRV Communications, Inc. (the “Company”) on Form 10-Q for the period ended March 31, 2014, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, David S. Stehlin, Chief Executive Officer of the Company certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

2. The information contained in the report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	May 8, 2014	/s/ David S. Stehlin
		David S. Stehlin
		Chief Executive Officer
		(Principal Executive Officer)

EX-32.2

Exhibit 32.2

CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO

18 U.S.C. SECTION 1350

In connection with the Quarterly Report of MRV Communications, Inc. (the “Company”) on Form 10-Q for the period ended March 31, 2014, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Stephen A. Garcia, Chief Financial Officer of the Company certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

2. The information contained in the report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	May 8, 2014	/s/ Stephen A. Garcia
		Stephen A. Garcia
		Chief Financial Officer
		(Principal Financial Officer)

XML

Share-Based Compensation (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost not yet recognized	$ 0.5
Total compensation cost not yet recognized, period for recognition	1 year 1 month 2 days
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, grants during period (in shares)	0	0
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock, grants during period (in shares)	0	0

XML

Share Repurchase (Narrative) (Details) (USD $)	3 Months Ended		0 Months Ended	3 Months Ended	7 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Aug. 15, 2013 August 2013 Share Repurchase Agreement	Mar. 31, 2014 August 2013 Share Repurchase Agreement	Mar. 31, 2014 August 2013 Share Repurchase Agreement
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount			$ 7,000,000
Treasury stock, shares acquired					127,510
Purchase of treasury shares	0	513,000			1,300,000
Stock repurchase program, remaining authorized repurchase amount				$ 5,700,000

XML

Litigation (Narrative) (Details) (USD $)	0 Months Ended	3 Months Ended	12 Months Ended		1 Months Ended	12 Months Ended	3 Months Ended
	Apr. 08, 2013	Mar. 31, 2014	Dec. 31, 2013	Feb. 18, 2014	Nov. 30, 2010 Purported Stockholder Derivative and Securities Class Action Lawsuits [Member]	Dec. 31, 2013 Purported Stockholder Derivative and Securities Class Action Lawsuits [Member]	Aug. 31, 2008 U. S. District Court in the Central District of California [Member] Purported Stockholder Derivative and Securities Class Action Lawsuits [Member] claims	Aug. 31, 2008 Superior Court of the State of California [Member] Purported Stockholder Derivative and Securities Class Action Lawsuits [Member] claims
Loss Contingencies [Line Items]
Purported stockholder derivative and securities class action lawsuits							5	1
Litigation settlement, amount					$ 10,000,000.0
Stipulation of settlement, insurance carriers payment	2,500,000.0
Stipulation of settlement, payment to plaintiff	500,000
Stipulation of settlement, payment to plaintiff, warrants	250,000			250,000
Stipulation of settlement, payment to plaintiff, warrants, term	5 years	5 years
Insurance proceeds related to litigation settlement						1,000,000
Litigation settlement, expense			$ 1,900,000

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Credit Risk (Changes in the Allowance for Doubtful Accounts) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at beginning of period	$ 2,183
Charged to expense	(77)	185
Write-offs	0
Foreign currency translation adjustment	(3)
Balance at end of period	$ 2,103

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Inventories (Tables)

3 Months Ended

Mar. 31, 2014

Inventory Disclosure [Abstract]

Schedule of Inventory, Current

Inventories, net of reserves, consisted of the following (in thousands):

	March 31, 2014		December 31, 2013
Raw materials		$4,843		$5,723
Work-in process	1,007		1,121
Finished goods	19,585		16,137
Total		$25,435		$22,981

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Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Federal Tax Authority
Operating Loss Carryforwards [Line Items]
Net operating losses	$ 172.3
Federal Tax Authority | Capital Loss Carryforward
Operating Loss Carryforwards [Line Items]
Capital loss carryforwards	110.5
State Tax Authority
Operating Loss Carryforwards [Line Items]
Net operating losses	93.1
State Tax Authority | Capital Loss Carryforward
Operating Loss Carryforwards [Line Items]
Capital loss carryforwards	24.0
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Net operating losses	$ 95.8

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Segment Reporting and Geographic Information (Revenues by Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	$ 42,318	$ 38,905
Before intersegment adjustments [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	42,372	38,928
Network Equipment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	22,319	20,946
Network Integration [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	20,053	17,982
Intersegment adjustments [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	$ (54)	$ (23)

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Product Warranty (Change in Product Warranty Liability) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Beginning balance	$ 578
Cost of warranty claims	(15)
Accruals for product warranties	33
Total	$ 596

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Accounts Receivable Factoring (Narrative) (Details) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 USD ($)	Mar. 31, 2013 USD ($)	Mar. 31, 2014 EUR (€)	Dec. 31, 2013 USD ($)
Receivables [Abstract]
Amount of factoring permitted per credit facility agreements	$ 13.8		€ 10.0
Accounts receivables sold	13.8			17.2
Outstanding balances on accounts receivable	6.0			7.7
Related losses on sale	$ 0	$ (0.1)

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Fair Value Measurement

3 Months Ended

Mar. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value Measurement

Fair Value Measurement

MRV's financial instruments, including cash and cash equivalents, restricted time deposits, accounts receivable, other receivables, other assets, accounts payable, accrued liabilities and short-term debt obligations, are carried at cost, which approximates their fair market value.

ASC 820-10Fair Value Measurementsdefines fair value, establishes a framework for measuring fair value, and expands disclosures about fair value measurements. ASC 820-10 establishes a three-level hierarchy that prioritizes the use of observable inputs. The fair value hierarchy is divided into three levels based on the source of inputs as follows: Level 1 -Valuations based on unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access; Level 2 - Valuations for which all significant inputs are observable, either directly or indirectly, other than level 1 inputs; Level 3 - Valuations based on inputs that are unobservable and significant to the overall fair value measurement.

All of MRV's assets and a majority of its liabilities that are measured at fair value are measured using the unadjusted quoted prices in active markets for identical assets or liabilities that are accessible at the measurement date. Under this standard, fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (i.e., the “exit price”) in an orderly transaction between market participants at the measurement date.

As of March 31, 2014 and December 31, 2013 , the Company had cash equivalents consisting of money market funds of $14.0 million and $14.0 million, respectively that were classified as Level 1 investments and were quoted at market price. Cash equivalents are included in the consolidated balance sheets as follows (in thousands):

	Cost		Fair Value
December 31, 2013	$	14,001	$	14,001
March 31, 2014	$	14,003	$	14,003

During 2014 the Company updated the estimated fair value as of the issuance date of 250,000 warrants that were issued to plaintiffs' counsel on February 18, 2014 in a litigation matter originally recorded as a liability in 2013. In calculating the fair value, the Company used the Black Scholes option pricing model with level 2 inputs including a volatility of 41% based on the Company's historical quoted prices and peer company data, the risk free interest rate of 1.5% and the 5 years expected term of the warrants. Volatility based on both the Company's historical quoted prices and peer company data was used as the Company's stock is thinly traded. The resulting fair value was $6.59 per warrant. In relation to this revaluation, the Company recorded expense of $0.4 million for the three months ended March 31,2014. Upon issuance and revaluation, the warrants were removed from liabilities and recorded as a component of additional paid in capital. As the criteria was met under ASU 480 and ASU 815.

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Segment Reporting and Geographic Information (External Revenue and Long-Lived Assets by Geographic Region) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 42,318	$ 38,905
Long-Lived Assets	5,391		5,555
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	3,239		3,326
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	12,856	12,125
Americas (Excluding the U.S.)
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	556	1,625
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	26,579	23,421
Long-Lived Assets	2,119		2,194
Italy
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	20,400	18,100
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	2,327	1,734
Long-Lived Assets	$ 33		$ 35

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Income Taxes (Tables)

3 Months Ended

Mar. 31, 2014

Income Tax Disclosure [Abstract]

Details of Income Taxes

The following table provides details of income taxes (in thousands, except percentages):

	Three months ended
	March 31,
	2014			2013
Loss before provision for income taxes		($3,966	)		($4,128	)
Provision for income taxes	251			306
Effective tax rate	(6		)%	(7		)%

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Segment Reporting and Geographic Information (Tables)

3 Months Ended

Mar. 31, 2014

Segment Reporting [Abstract]

Reconciliation of Revenue from Segments to Consolidated

The following table summarizes revenues by segment, including intersegment revenues (in thousands):

	Three Months Ended   March 31,
	2014			2013
Network Equipment		$22,319			$20,946
Network Integration	20,053			17,982
Before intersegment adjustments	42,372			38,928
Intersegment adjustments	(54		)	(23		)
Total		$42,318			$38,905

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas

The following table summarizes external revenue by geographic region (in thousands):

	Three months ended
	March 31,
	2014		2013
United States		$12,856		$12,125
Americas (Excluding the U.S.)	556		1,625
Europe	26,579		23,421
Asia Pacific	2,327		1,734
Total		$42,318		$38,905

Revenue from external customers attributed to Italy totaled $20.4 million and $18.1 million for the three months ended March 31, 2014 and March 31, 2013 respectively.

The following table summarizes long-lived assets, consisting of property and equipment, by geographic region (in thousands):

	March 31, 2014		December 31, 2013
Americas		$3,239		$3,326
Europe	2,119		2,194
Asia Pacific	33		35
Total		$5,391		$5,555

Reconciliation of Operating Profit (Loss) from Segments to Consolidated

The following table provides selected Statement of Operations information by business segment (in thousands):

	Three months ended
	March 31,
	2014			2013
Gross profit
Network Equipment	$	10,759		$	10,766
Network Integration	2,490			2,257
Total before intersegment adjustments	13,249			13,023
Corporate unallocated and intersegment adjustments(1)	2			4
Total	$	13,251		$	13,027
Depreciation expense
Network Equipment	$	536		$	300
Network Integration	49			53
Corporate	39			48
Total	$	624		$	401
Operating income (loss)
Network Equipment	$	(2,839	)	$	(1,119	)
Network Integration	845			691
Total before intersegment adjustments	(1,994		)	(428		)
Corporate unallocated operating loss and adjustments (1)	(1,855		)	(3,585		)
Total	$	(3,849	)	$	(4,013	)

(1) Adjustments reflect the elimination of intersegment revenue and profit in inventory.

Reconciliation of Assets and Other Reconciling Items from Segment to Consolidated

The following tables provide selected Balance Sheet and Statement of Cash Flow information by business segment (in thousands):

	Three months ended
	March 31,
	2014		2013
Additions to Fixed Assets
Network Equipment	$	239	$	922
Network Integration	33		32
Corporate	80		1
Total	$	352	$	955

	March 31, 2014		December 31, 2013
Total Assets
Network Equipment		$45,329		$48,955
Network Integration	57,495		54,625
Corporate and intersegment eliminations	22,552		24,367
Total		$125,376		$127,947

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Segment Reporting and Geographic Information (Statement of Operations Information by Business Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Gross profit
Gross Profit	$ 13,251		$ 13,027
Depreciation expense
Depreciation expense	624		401
Operating income (loss)
Operating Income (Loss)	(3,849)		(4,013)
Total before intersegment adjustments [Member]
Gross profit
Gross Profit	13,249		13,023
Operating income (loss)
Operating Income (Loss)	(1,994)		(428)
Network Equipment [Member]
Gross profit
Gross Profit	10,759		10,766
Depreciation expense
Depreciation expense	536		300
Operating income (loss)
Operating Income (Loss)	(2,839)		(1,119)
Network Integration [Member]
Gross profit
Gross Profit	2,490		2,257
Depreciation expense
Depreciation expense	49		53
Operating income (loss)
Operating Income (Loss)	845		691
Corporate Unallocated and Intersegment Adjustments [Member]
Gross profit
Gross Profit	2	[1]	4	[1]
Operating income (loss)
Operating Income (Loss)	(1,855)	[1]	(3,585)	[1]
Corporate [Member]
Depreciation expense
Depreciation expense	$ 39		$ 48

[1] djustments reflect the elimination of intersegment revenue and profit in inventory.

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Organization and Summary of significant accounting policies (Narrative) (Details)	3 Months Ended
	Mar. 31, 2014 segments
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of Business Segments	2

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Fair Value Measurement (Narrative) (Details) (USD $)	0 Months Ended	3 Months Ended
	Apr. 08, 2013	Mar. 31, 2014	Feb. 18, 2014	Mar. 31, 2014 Money Market Funds [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2013 Money Market Funds [Member] Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash Equivalents				$ 14,003,000	$ 14,001,000
Stipulation of settlement, payment to plaintiff, warrants	250,000		250,000
Expected volatility rate		41.00%
Risk free interest rate		1.50%
Stipulation of settlement, payment to plaintiff, warrants, term	5 years	5 years
Warrants, fair value per share		6.59
Liabilities, Fair Value Adjustment		$ 400,000

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Cash and Cash Equivalents and Restricted Time Deposits

3 Months Ended

Mar. 31, 2014

Cash and Cash Equivalents [Abstract]

Cash and Cash Equivalents and Restricted Time Deposits

Cash and Cash Equivalents and Restricted Time Deposits

MRV treats highly liquid investments with an original maturity of 90 days or less as cash equivalents. Investments with maturities of less than one year are considered short-term, and are included on the balance sheet in restricted time deposits. MRV maintains cash balances and investments in qualified financial institutions, and at various times such amounts are in excess of federal insured limits.

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Fair Value Measurement (Cash and Cash Equivalents) (Details) (Money Market Funds [Member], Fair Value, Inputs, Level 1 [Member], USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash Equivalents, Beginning Balance	$ 14,003	$ 14,001
Cash Equivalents, Ending Balance	14,003	14,001
Cost [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash Equivalents, Beginning Balance	14,003	14,001
Cash Equivalents, Ending Balance	$ 14,003	$ 14,001

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Share-Based Compensation (Share-Based Compensation Expense) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	$ 147	[1]	$ 219	[1]
Cost of Goods Sold [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	20		17
Product Development and Engineering [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	23		10
Selling, General and Administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	$ 104		$ 192

[1] Income tax benefits realized from stock option exercises and similar awards were immaterial in both periods.

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Condensed Consolidated Statements of Operations (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenue:
Product revenue	$ 31,544	$ 28,072
Service revenue	10,774	10,833
Total revenue	42,318	38,905
Cost of sales	29,067	25,878
Gross profit	13,251	13,027
Operating expenses:
Product development and engineering	5,578	4,648
Selling, general and administrative	11,522	12,392
Total operating expenses	17,100	17,040
Operating loss	(3,849)	(4,013)
Interest expense	(150)	(132)
Other income, net	33	17
Loss before income taxes	(3,966)	(4,128)
Provision for income taxes	251	306
Net income (loss)	$ (4,217)	$ (4,434)
Net loss per share — basic (in usd per share)	$ (0.58)	$ (0.59)
Net loss per share — diluted (in usd per share)	$ (0.58)	$ (0.59)
Weighted average number of shares:
Basic (in shares)	7,283	7,568
Diluted (in shares)	7,283	7,568

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Segment Reporting and Geographic Information (Balance Sheet and Statement of Cash Flow Information) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]
Additions to Fixed Assets	$ 352	$ 955
Assets	125,376		127,947
Network Equipment [Member]
Segment Reporting Information [Line Items]
Additions to Fixed Assets	239	922
Assets	45,329		48,955
Network Integration [Member]
Segment Reporting Information [Line Items]
Additions to Fixed Assets	33	32
Assets	57,495		54,625
Corporate [Member]
Segment Reporting Information [Line Items]
Additions to Fixed Assets	80	1
Corporate Unallocated and Intersegment Adjustments [Member]
Segment Reporting Information [Line Items]
Assets	$ 22,552		$ 24,367

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Condensed Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:
Net loss	$ (4,217)	$ (4,434)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	624	401
Share-based compensation expense	147	219
Provision for doubtful accounts	(77)	185
Deferred income taxes	365	16
Loss on disposition of property and equipment	0	14
Changes in operating assets and liabilities:
Accounts receivable	(1,092)	2,732
Inventories	(2,471)	1,407
Other assets	1,712	(3,220)
Accounts payable	455	3,061
Accrued liabilities	(2,076)	996
Income tax payable	(21)	121
Deferred revenue	371	905
Other current liabilities	(214)	131
Net cash provided by (used in) operating activities	(6,494)	2,534
Cash flows from investing activities:
Purchases of property and equipment	(352)	(955)
Release of restricted time deposits	5	(2)
Net cash used in investing activities	(347)	(957)
Cash flows from financing activities:
Purchase of treasury shares	0	(513)
Borrowings on short-term debt	6,819	968
Payments on short-term debt	(4,350)	(5,356)
Net cash provided by (used in) financing activities	2,469	(4,901)
Effect of exchange rate changes on cash and cash equivalents	(5)	(39)
Net decrease in cash and cash equivalents	(4,377)	(3,363)
Cash and cash equivalents, beginning of period	27,591	40,608
Cash and cash equivalents, end of period	23,214	37,245
Supplemental disclosure of cash flow information:
Cash paid during period for interest	51	514
Cash paid during period for income taxes	$ 0	$ 1,500

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Intangible Assets (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible assets	$ 762,000		$ 873,000
Amortization of intangible assets	$ 0	$ 0
Estimated useful life of finite-lived intangible assets	5 years

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Organization and Summary of significant accounting policies (Policies)

3 Months Ended

Mar. 31, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

The consolidated financial statements include the accounts of MRV and its wholly-owned subsidiaries. All significant intercompany transactions and accounts have been eliminated. MRV consolidates the financial results of less than majority-owned subsidiaries when it has effective control, voting control, or has provided the entity's working capital. When investment by others in these enterprises reduces the Company's voting control below 50%, MRV discontinues consolidation and uses the cost or equity method of accounting for these investments, unless otherwise required.

The consolidated financial statements included herein have been prepared by MRV, and are unaudited, 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 (“GAAP”) have been condensed or omitted pursuant to such rules and regulations although MRV believes that the disclosures are adequate to make the information presented not misleading. The information included in this Quarterly Report on Form 10-Q for the quarter ended March 31, 2014 (this “Form 10-Q”) should be read in conjunction with “Selected Financial Data,” “Management's Discussion and Analysis of Financial Condition and Results of Operations,” “Quantitative and Qualitative Disclosures About Market Risk,” and the Financial Statements and Notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2013 (the “2013 Form 10-K”) filed with the SEC.

Restricted Time Deposits

Restricted time deposits represent investments that are restricted as to withdrawal. Restricted time deposits generally secure standby letters of credit, bank lines of credit, or bank loans. Investments in and releases of restricted time deposits are included in investing activities on the Company's Statement of Cash Flows unless the time deposits relate to an underlying bank loan and will be used to repay the loan, in which case the related cash flows are treated as financing activities.

Allowance for Doubtful Accounts Policy

Financial instruments that potentially subject the Company to concentrations of credit risk primarily consist of cash and cash equivalents placed with high credit quality institutions and accounts receivable due from customers. MRV evaluates the collectability of accounts receivable based on a combination of factors. If the Company becomes aware of a customer's inability to meet its financial obligations after a sale has occurred, the Company records an allowance to reduce the net receivable to the amount that it reasonably believes to be collectable from the customer. For all other customers, the Company records allowances for doubtful accounts based on the length of time the receivables are past due, the current business environment, and historical experience. If the financial conditions of MRV's customers were to deteriorate or if economic conditions worsen, additional allowances may be required in the future. Accounts receivable are charged off at the point they are considered uncollectible.

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Product Warranty (Narrative) (Details) (USD $) In Thousands, unless otherwise specified			3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Minimum [Member]	Mar. 31, 2014 Maximum [Member]
Product Warranties Disclosures [Abstract]
Product warranty liability	$ 596	$ 578
Standard Product Warranty Period [Line Items]
Standard product warranty period			90 days	3 years

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Credit Risk (Tables)

3 Months Ended

Mar. 31, 2014

Receivables [Abstract]

Schedule of Allowance for Doubtful Accounts

The following table summarizes the changes in the allowance for doubtful accounts during the three months ended March 31, 2014(in thousands):

	Three months ended
	March 31, 2014
Balance at beginning of period		$2,183
Charged to expense	(77		)
Write-offs	—
Foreign currency translation adjustment	(3		)
Balance at end of period		$2,103

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Organization and Summary of significant accounting policies

3 Months Ended

Mar. 31, 2014

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, 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. MRV conducts 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 Italian Network Integration segment provides network system design, integration and distribution services that include products manufactured by third-party vendors.

Basis of Presentation

The consolidated financial statements include the accounts of MRV and its wholly-owned subsidiaries. All significant intercompany transactions and accounts have been eliminated. MRV consolidates the financial results of less than majority-owned subsidiaries when it has effective control, voting control, or has provided the entity's working capital. When investment by others in these enterprises reduces the Company's voting control below 50%, MRV discontinues consolidation and uses the cost or equity method of accounting for these investments, unless otherwise required.

The consolidated financial statements included herein have been prepared by MRV, and are unaudited, 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 (“GAAP”) have been condensed or omitted pursuant to such rules and regulations although MRV believes that the disclosures are adequate to make the information presented not misleading. The information included in this Quarterly Report on Form 10-Q for the quarter ended March 31, 2014 (this “Form 10-Q”) should be read in conjunction with “Selected Financial Data,” “Management's Discussion and Analysis of Financial Condition and Results of Operations,” “Quantitative and Qualitative Disclosures About Market Risk,” and the Financial Statements and Notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2013 (the “2013 Form 10-K”) filed with the SEC.

Restricted time deposits represent investments that are restricted as to withdrawal. Restricted time deposits generally secure standby letters of credit, bank lines of credit, or bank loans. Investments in and releases of restricted time deposits are included in investing activities on the Company's Statement of Cash Flows unless the time deposits relate to an underlying bank loan and will be used to repay the loan, in which case the related cash flows are treated as financing activities.

In the opinion of MRV's management, these unaudited statements contain all adjustments, which include normal recurring adjustments, necessary to present fairly the financial position of MRV as of March 31, 2014, and the results of its operations and comprehensive income (loss) for the three months ended March 31, 2014 and 2013 and its cash flows for the three months ended March 31, 2014 and 2013. The results reported in these financial statements should not be regarded as necessarily indicative of results that may be expected for the full year or any future periods.

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Condensed Consolidated Statements of Comprehensive Income (Loss) (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]
Net Loss	$ (4,217)	$ (4,434)
Other comprehensive loss net of tax
Foreign currency translation loss	(47)	(835)
Total comprehensive loss	$ (4,264)	$ (5,269)

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Indemnification Obligations

3 Months Ended

Mar. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Indemnification Obligations

Indemnification Obligations

Our agreements for the sale of our Source Photonics, CES, Interdata and Alcadon businesses include customary indemnification obligations running to the respective buyers.

We have agreements whereby our officers and directors are indemnified for certain events or occurrences while the officer or director is, or was, serving at our request in such capacity. The maximum potential amount of future payments we could be required to make under these indemnification agreements is unlimited; however, we retain directors and officers insurance that reduces our exposure and enables us to recover portions of amounts paid. As a result of our insurance coverage, we believe the estimated fair value of these indemnification agreements is minimal. Accordingly, no liabilities have been recorded for these agreements as of March 31, 2014 and December 31, 2013.

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Document and Entity Information	3 Months Ended
	Mar. 31, 2014	Apr. 30, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	MRV COMMUNICATIONS INC
Entity Central Index Key	0000887969
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		7,349,600

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Litigation

3 Months Ended

Mar. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Litigation

Litigation

We are subject to legal claims and litigation in the ordinary course of business, including but not limited to product liability, employment and intellectual property claims. The outcome of any such matters is currently not determinable. In addition, we were party to the litigation set forth below.

From June to August 2008, five purported stockholder derivative and securities class action lawsuits were filed in the U.S. District Court in the Central District of California and one derivative lawsuit was filed in the Superior Court of the State of California against the Company and certain of our former officers and directors. The five lawsuits filed in the Central District of California were consolidated. Claims were asserted under Section 10(b) and 20(a) of the Exchange Act, and Rule 10b-5 promulgated thereunder. In November 2010, the judge overseeing the securities class action lawsuits gave final approval to a stipulated $10.0 million settlement agreement, which was covered by our director and officer insurance policies. The federal and state derivative lawsuits were not settled and continued to be litigated.

As of January 4, 2013, all pending litigation in the federal and state derivative actions was stayed by agreement of the parties pending final Federal Court approval of a settlement between derivative plaintiffs, individual defendants and the Company. On April 8, 2013 the Federal Court preliminarily approved a Stipulation of Settlement (the "Settlement Stipulation"), which included, among other things, (a) a release of all claims relating to the derivative litigation for the Company, the individual defendants and the plaintiffs; (b) a provision that $2.5 million in cash be paid to the Company by the Company's insurance carriers; (c) payment of attorneys' fees to plaintiffs' counsel including $500,000 in cash and 250,000 warrants to purchase the Company's Common Stock, with a five-year term and strike price of the closing price of the Company's Common Stock on the date an order of the federal District Court approving the settlement becomes final; (d) the continued payment by the Company of applicable reasonable attorneys' fees for the individual defendants. On June 6, 2013, the Federal Court granted final approval of the Settlement Stipulation and on June 13, 2013 entered Judgment dismissing the federal derivative action with prejudice. On June 24, 2013, the State Court entered a dismissal with prejudice of the state derivative action. The Company was also required to undertake certain corporate governance reform actions,all of which are either in process of implementation or have been implemented.

A majority of the costs related to the Company's and defendants' defense of these actions was paid by the Company's insurance carriers under its director and officer insurance policies, including the securities class action settlement. Insurance proceeds paid to the Company upon settlement of the derivative litigation were $1.0 million. However, MRV has paid and accrued $1.9 million in payment for services of defense counsel and other parties through December 31, 2013 above the insured amount.

From time to time, MRV has received notices from third parties alleging possible infringement of patents with respect to product features or manufacturing processes. Management believes such notices are common in the communications industry because of the large number of patents that have been filed on these subjects. The Company's policy is to discuss these notices with the parties in an effort to demonstrate that MRV's products and/or processes do not violate any patents. The Company has been involved in such discussions with Alcatel-Lucent SA, Apcon, Inc., Finisar Corporation, International Business Machines, Mediacom Broadband LLC, Ortel Communications, Ltd., Nortel Networks Corporation, Rockwell Automation, Inc. and The Lemelson Foundation in the past.

MRV and its subsidiaries have been named as a defendant in other lawsuits involving matters that the Company considers routine to the nature of its business. Management is of the opinion that the ultimate resolution of such matters will not have a material adverse effect on our business, operating results and financial condition.

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Condensed Consolidated Balance Sheets (unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 23,214	$ 27,591
Restricted time deposits	244	249
Accounts receivable, net	51,127	49,990
Other receivables	6,503	8,220
Inventories	25,435	22,981
Income tax refunds receivable	1,002	1,256
Deferred income taxes	1,185	1,219
Other current assets	6,156	5,664
Total current assets	114,866	117,170
Property and equipment, net	5,391	5,555
Deferred income taxes, net of current portion	3,756	3,694
Intangibles, net	762	873
Other assets	601	655
Total assets	125,376	127,947
Current liabilities:
Short-term debt	6,794	4,320
Deferred consideration payable	233	233
Accounts payable	24,430	23,991
Accrued liabilities	15,780	19,463
Deferred revenue	10,925	10,557
Other current liabilities	642	357
Total current liabilities	58,804	58,921
Other long-term liabilities	5,303	5,236
Commitments and contingencies
Stockholders' equity:
Preferred Stock, $0.01 par value: Authorized — 1,000 shares; no shares issued or outstanding	0	0
Common Stock, $0.0017 par value: Authorized---16,000 shares; Issued---8,136 shares in 2014 and 8,143 shares in 2013; Outstanding — 7,280 shares in 2014 and 7,286 shares in 2013	270	270
Additional paid-in capital	1,283,626	1,281,883
Accumulated deficit	(1,212,554)	(1,208,337)
Treasury stock — 856 shares in 2014 and 856 shares in 2013	(10,412)	(10,412)
Accumulated other comprehensive income	339	386
Total stockholders' equity	61,269	63,790
Total liabilities and stockholders' equity	$ 125,376	$ 127,947

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Intangible Assets

3 Months Ended

Mar. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangibles

Intangible Asset

The balance of the intangible asset was $0.8 million as of March 31, 2014 and $0.9 million as of December 31, 2013. This asset, which represents software license agreements, was not placed in service as of March 31, 2014, therefore amortization of intangible assets was zero for the three months ended March 31, 2014 and March 31, 2013. The terms of the license agreements are indefinite and once placed in service, the Company plans to amortize the cost over the estimated useful life, which is approximately 5 years.

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Inventories

3 Months Ended

Mar. 31, 2014

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories are stated at the lower of cost or market and consist of materials, labor and overhead. Cost is computed using standard cost, which approximates actual cost, on a first-in, first-out basis. Inventories, net of reserves, consisted of the following (in thousands):

	March 31, 2014		December 31, 2013
Raw materials		$4,843		$5,723
Work-in process	1,007		1,121
Finished goods	19,585		16,137
Total		$25,435		$22,981

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Fair Value Measurement (Tables)

3 Months Ended

Mar. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value, by Balance Sheet Grouping

Cash equivalents are included in the consolidated balance sheets as follows (in thousands):

	Cost		Fair Value
December 31, 2013	$	14,001	$	14,001
March 31, 2014	$	14,003	$	14,003

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Accounts Receivable Factoring

3 Months Ended

Mar. 31, 2014

Receivables [Abstract]

Accounts Receivable Factoring

Accounts Receivable Factoring

The Company's Italian subsidiary has agreements with unrelated third-parties for the factoring of specific accounts receivable in Italy in order to reduce the amount of working capital required to fund such receivables. At March 31, 2014, Tecnonet's factoring facility agreements permitted the factoring of up to €10.0 million, or $13.8 million, worth of receivables in operations outside of the United States. The factoring of accounts receivable under these agreements is accounted for as a sale in accordance with ASC 860 Transfers and Servicing. The Company has no retained interests or servicing liabilities related to the accounts receivable that have been sold in Italy.

At March 31, 2014, and December 31, 2013, the face amount of total outstanding accounts receivable pursuant to these agreements was $13.8 million and $17.2 million, respectively. Receivables transferred to the factor are derecognized at the date of sale and the proceeds are recorded at fair value. Proceeds consist of a receivable due from the factor. Cash received from the factor is recorded as a reduction of the receivable due from the factor. The related outstanding balances due from the factor were $6.0 million and $7.7 million as of March 31, 2014 and December 31, 2013, respectively, and are included in other receivables on the accompanying balance sheets The related losses on sale were $0.04 million and $0.1 million for the three months ended March 31, 2014 and March 31, 2013, and is included in interest expense on the accompanying consolidated statements of operations.

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Share-Based Compensation

3 Months Ended

Mar. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-Based Compensation

Share-Based Compensation

MRV records share-based compensation expense in accordance with ASC Topic 718Compensation - Stock Compensation. The following table summarizes the impact on MRV's results of operations of recording share-based compensation for the three months ended March 31, 2014 and 2013 (in thousands):

	Three months ended
	March 31,
	2014		2013
Cost of goods sold		$20		$17
Product development and engineering	23		10
Selling, general and administrative	104		192
Total share-based compensation expense (1)		$147		$219

(1) Income tax benefits realized from stock option exercises and similar awards were immaterial in both periods.

The Company granted no stock options and no restricted shares during the three months ended March 31,2014 and the three months ended March 31,2013. As of March 31, 2014, the total unrecorded deferred share-based compensation balance for unvested securities, net of expected forfeitures, was$0.5 million, which is expected to be amortized over a weighted-average period of1.1 years.

Valuation Assumptions

MRV uses the Black-Scholes option pricing model to estimate the fair value of stock option awards or related modifications. The Black-Scholes model requires the use of subjective and complex assumptions including the option's expected life and the underlying stock price volatility. MRV bases volatility on the Company's historical quoted prices and peer company data. There were no options modified during the three months ended March 31, 2014 and 2013, respectively.

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Product Warranty

3 Months Ended

Mar. 31, 2014

Product Warranties Disclosures [Abstract]

Product Warranty

Product Warranty

As of March 31, 2014 and December 31, 2013, MRV's product warranty liability recorded in accrued liabilities was $0.6 million and $0.6 million, respectively. MRV accrues for warranty costs as part of cost of goods sold based on associated material product costs, technical support labor costs and associated overhead. The products sold are generally covered by a warranty for periods of 90 days to three years.

The following table summarizes the change in product warranty liability during the three months ended March 31, 2014 (in thousands):

	Three months ended
	March 31, 2014
Beginning balance		$578
Cost of warranty claims	(15		)
Accruals for product warranties	33
Total		$596

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Net Income (Loss) Per Share

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Net Income (Loss) Per Share

Net Income (Loss) Per Share

Basic net income (loss) per share is computed using the weighted average number of shares of common stock ("Common Stock") outstanding, including restricted shares which, although they are legally outstanding and have voting rights, are subject to vesting and are treated as common stock equivalents in calculating basic income (loss) per share. Diluted net income per share is computed using the weighted average number of shares of Common Stock outstanding and dilutive potential shares of Common Stock from stock options outstanding during the period. Diluted shares outstanding also include the dilutive effect of in-the-money options, which is calculated based on the average share price for each period using the treasury stock method.

Outstanding stock options to purchase 0.3 million shares were excluded from the computation of dilutive shares for the three months ended March 31,2014 because of the net loss. Outstanding stock options to purchase 0.4 million shares were excluded in the computation of dilutive shares for the three months ended March 31, 2013 because of the net loss. In addition, for the three months ended March 31,2014, there were 9.3 thousand potentially dilutive shares excluded from the calculation of diluted net loss per share because they were anti-dilutive, and there were no potentially dilutive shares to be excluded from the calculation of diluted net loss per share for the three months ended March 31, 2013. Treasury shares are excluded from the number of shares outstanding.

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Segment Reporting and Geographic Information

3 Months Ended

Mar. 31, 2014

Segment Reporting [Abstract]

Segment Reporting and Geographic Information

Segment Reporting and Geographic Information

MRV operates its business in two segments: Network Equipment and Network Integration. Network Equipment designs, manufactures, distributes and services optical networking solutions and Internet infrastructure products, and Network Integration distributes network solutions and Internet infrastructure products and provides value-added integration and support services for customers' networks.

The accounting policies of the segments are the same as those described in the summary of significant accounting polices disclosed in MRV's2013Form 10-K. MRV evaluates segment performance based on revenues, gross profit and operating income (loss) of each segment. As such, there are no separately identifiable Statements of Operations data below operating income (loss).

The following table summarizes revenues by segment, including intersegment revenues (in thousands):

	Three Months Ended   March 31,
	2014			2013
Network Equipment		$22,319			$20,946
Network Integration	20,053			17,982
Before intersegment adjustments	42,372			38,928
Intersegment adjustments	(54		)	(23		)
Total		$42,318			$38,905

Network Equipment revenue primarily consists of optical communication systems that include Metro Ethernet equipment, optical transport equipment, lab automation equipment, out-of-band network equipment, and the related service revenue and fiber optic components sold as part of system solutions. Network Integration revenue primarily consists of value-added integration and support service revenue, related third-party product sales (including third-party product sales through distribution) and fiber optic components sold as part of system solutions. All Network Integration's sales are within Italy.

One customer accounted for $11.0 million and $11.5 million of revenue in Network Integration revenue, or 26% and 30% of total revenue, for the three months ended March 31, 2014 and 2013, respectively. Another customer accounted for $6.5 million and $5.1 million of Network Integration revenue, or 15% and 13% of total revenue, for the three months ended March 31, 2014 and 2013, respectively.

One customer in Network Integration accounted for 10% and 22% of total net accounts receivable as of March 31, 2014, and December 31, 2013, respectively. Another Network Integration customer accounted for 27% and 27% of total net accounts receivable as of March 31, 2014, and December 31, 2013, respectively.

The following table summarizes external revenue by geographic region (in thousands):

	Three months ended
	March 31,
	2014		2013
United States		$12,856		$12,125
Americas (Excluding the U.S.)	556		1,625
Europe	26,579		23,421
Asia Pacific	2,327		1,734
Total		$42,318		$38,905

Revenue from external customers attributed to Italy totaled $20.4 million and $18.1 million for the three months ended March 31, 2014 and March 31, 2013 respectively.

The following table summarizes long-lived assets, consisting of property and equipment, by geographic region (in thousands):

	March 31, 2014		December 31, 2013
Americas		$3,239		$3,326
Europe	2,119		2,194
Asia Pacific	33		35
Total		$5,391		$5,555

The following table provides selected Statement of Operations information by business segment (in thousands):

	Three months ended
	March 31,
	2014			2013
Gross profit
Network Equipment	$	10,759		$	10,766
Network Integration	2,490			2,257
Total before intersegment adjustments	13,249			13,023
Corporate unallocated and intersegment adjustments(1)	2			4
Total	$	13,251		$	13,027
Depreciation expense
Network Equipment	$	536		$	300
Network Integration	49			53
Corporate	39			48
Total	$	624		$	401
Operating income (loss)
Network Equipment	$	(2,839	)	$	(1,119	)
Network Integration	845			691
Total before intersegment adjustments	(1,994		)	(428		)
Corporate unallocated operating loss and adjustments (1)	(1,855		)	(3,585		)
Total	$	(3,849	)	$	(4,013	)

(1) Adjustments reflect the elimination of intersegment revenue and profit in inventory.

The following tables provide selected Balance Sheet and Statement of Cash Flow information by business segment (in thousands):

	Three months ended
	March 31,
	2014		2013
Additions to Fixed Assets
Network Equipment	$	239	$	922
Network Integration	33		32
Corporate	80		1
Total	$	352	$	955

	March 31, 2014		December 31, 2013
Total Assets
Network Equipment		$45,329		$48,955
Network Integration	57,495		54,625
Corporate and intersegment eliminations	22,552		24,367
Total		$125,376		$127,947

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Inventories (Net of Reserves) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Inventory Disclosure [Abstract]
Raw materials	$ 4,843	$ 5,723
Work-in process	1,007	1,121
Finished goods	19,585	16,137
Total	$ 25,435	$ 22,981

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Income Taxes

3 Months Ended

Mar. 31, 2014

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The following table provides details of income taxes (in thousands, except percentages):

	Three months ended
	March 31,
	2014			2013
Loss before provision for income taxes		($3,966	)		($4,128	)
Provision for income taxes	251			306
Effective tax rate	(6		)%	(7		)%

The effective tax rate for the three months ended March 31, 2014 fluctuates based on the amount of pre-tax income or loss generated in the various jurisdictions where we conduct operations and pay income tax. In addition, various jurisdictions that generate losses do not benefit from the losses generated due to a valuation allowance placed on those benefits

As of December 31, 2013, we had net operating losses ("NOLs") of $172.3 million, $93.1 million, and $95.8 million for federal, state, and foreign income tax purposes, respectively. Additionally, the Company had capital loss carryforwards of $110.5 million and $24.0 million for federal and state tax purposes, respectively. The capital loss carry forwards, which were generated by the sale of Source Photonics, expire in 2015. Under the Internal Revenue Code, if a corporation undergoes an "ownership change," the corporation's ability to use its pre-change NOLs, capital loss carry forwards and other pre-change tax attributes to offset its post-change income may be limited. An ownership change is generally defined as a greater than 50% change in its equity ownership by value over a three-year period. We may experience an ownership change in the future as a result of subsequent shifts in our stock ownership. If we were to trigger an ownership change in the future, our ability to use any NOLs and capital loss carry forwards existing at that time could be limited. As of March 31, 2014, the US federal and state NOLs had a full valuation allowance.

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Product Warranty (Tables)

3 Months Ended

Mar. 31, 2014

Product Warranties Disclosures [Abstract]

Schedule of Product Warranty Liability

The following table summarizes the change in product warranty liability during the three months ended March 31, 2014 (in thousands):

	Three months ended
	March 31, 2014
Beginning balance		$578
Cost of warranty claims	(15		)
Accruals for product warranties	33
Total		$596

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Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Tax Disclosure [Abstract]
Loss before provision for income taxes	$ (3,966)	$ (4,128)
Provision for income taxes	$ 251	$ 306
Effective tax rate	(6.00%)	(7.00%)

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Segment Reporting and Geographic Information (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended													12 Months Ended	3 Months Ended	12 Months Ended
	Mar. 31, 2014 segments	Mar. 31, 2013	Mar. 31, 2014 Network Integration [Member]	Mar. 31, 2013 Network Integration [Member]	Mar. 31, 2014 Network Integration [Member] Major Customer, One [Member]	Mar. 31, 2013 Network Integration [Member] Major Customer, One [Member]	Mar. 31, 2014 Network Integration [Member] Major Customer, Two [Member]	Mar. 31, 2013 Network Integration [Member] Major Customer, Two [Member]	Mar. 31, 2014 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, One [Member]	Mar. 31, 2013 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, One [Member]	Mar. 31, 2014 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, Two [Member]	Mar. 31, 2013 Network Integration [Member] Customer Concentration Risk [Member] Revenue [Member] Major Customer, Two [Member]	Mar. 31, 2014 Network Integration [Member] Customer Concentration Risk [Member] Accounts Receivable [Member] Major Customer, One [Member]	Dec. 31, 2013 Network Integration [Member] Customer Concentration Risk [Member] Accounts Receivable [Member] Major Customer, One [Member]	Mar. 31, 2014 Network Integration [Member] Customer Concentration Risk [Member] Accounts Receivable [Member] Major Customer, Two [Member]	Dec. 31, 2013 Network Integration [Member] Customer Concentration Risk [Member] Accounts Receivable [Member] Major Customer, Two [Member]
Segment Reporting Information [Line Items]
Number of Business Segments	2
Revenue	$ 42,318	$ 38,905	$ 20,053	$ 17,982	$ 11,000	$ 11,500	$ 6,500	$ 5,100
Concentration percentage									26.00%	30.00%	15.00%	13.00%	10.00%	22.00%	27.00%	27.00%

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Condensed Consolidated Balance Sheets (unaudited) (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]
Preferred stock, par value (usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (usd per share)	$ 0.0017	$ 0.0017
Common stock, shares authorized	16,000,000	16,000,000
Common stock, shares issued	8,136,000	8,143,000
Common stock, shares outstanding	7,280,000	7,286,000
Treasury stock, shares	856,000	856,000

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Credit Risk

3 Months Ended

Mar. 31, 2014

Receivables [Abstract]

Credit Risk

Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk primarily consist of cash and cash equivalents placed with high credit quality institutions and accounts receivable due from customers. MRV evaluates the collectability of accounts receivable based on a combination of factors. If the Company becomes aware of a customer's inability to meet its financial obligations after a sale has occurred, the Company records an allowance to reduce the net receivable to the amount that it reasonably believes to be collectable from the customer. For all other customers, the Company records allowances for doubtful accounts based on the length of time the receivables are past due, the current business environment, and historical experience. If the financial conditions of MRV's customers were to deteriorate or if economic conditions worsen, additional allowances may be required in the future. Accounts receivable are charged off at the point they are considered uncollectible.

The following table summarizes the changes in the allowance for doubtful accounts during the three months ended March 31, 2014(in thousands):

	Three months ended
	March 31, 2014
Balance at beginning of period		$2,183
Charged to expense	(77		)
Write-offs	—
Foreign currency translation adjustment	(3		)
Balance at end of period		$2,103

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Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

The following table summarizes the impact on MRV's results of operations of recording share-based compensation for the three months ended March 31, 2014 and 2013 (in thousands):

	Three months ended
	March 31,
	2014		2013
Cost of goods sold		$20		$17
Product development and engineering	23		10
Selling, general and administrative	104		192
Total share-based compensation expense (1)		$147		$219

(1) Income tax benefits realized from stock option exercises and similar awards were immaterial in both periods.

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Net Income (Loss) Per Share (Narrative) (Details)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	300,000	400,000
Potentially Dilutive Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	9,300	0

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Share Repurchase

3 Months Ended

Mar. 31, 2014

Equity [Abstract]

Share Repurchase

Share Repurchase

On August 15, 2013, the Company Board of Directors terminated the Company's existing stock repurchase plan and approved a replacement repurchase plan on substantially the same terms in an amount up to $7.0 million that is scheduled to expire on May 14, 2014. Since August 15, 2013 the Company has purchased 127,510 shares at a total cost of approximately $1.3 million during the year ended December 31, 2013, leaving $5.7 million for future purchase. No additional shares were repurchased during the three months ended March 31, 2014.