10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-K

☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended: December 31, 2017

OR

☐ 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: 00-1-00106

The LGL Group, Inc.

(Exact name of Registrant as Specified in Its Charter)

Delaware	38-1799862
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)

2525 Shader Road, Orlando, Florida	32804
(Address of Principal Executive Offices)	(Zip Code)

Registrant's telephone number, including area code: (407) 298-2000

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Name of each exchange on which registered
Common Stock, $0.01 Par Value Per Share	NYSE American

Securities registered pursuant to Section 12(g) of the Act: Warrants to purchase Common Stock (expiring August 6, 2018)

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  Yes ☐    No ☒

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.  Yes ☐    No ☒

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 ☒    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 ☒    No ☐

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not contained herein, and will not be contained, to the best of the registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  ☒

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

Large accelerated filer	☐	Accelerated filer	☐
Non-accelerated filer (Do not check if a smaller reporting company)	☐	Smaller reporting company	☒
Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

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

The aggregate market value of the registrant's voting and non-voting common equity held by non-affiliates of the registrant, based upon the $4.82 per share closing price of the registrant's common stock on June 30, 2017, the last business day of the registrant's most recently completed second fiscal quarter, was $10,601,412. Solely for the purpose of this calculation, shares held by directors and executive officers of the registrant have been excluded. Such exclusion should not be deemed a determination or an admission by the registrant that such individuals are, in fact, affiliates of the registrant.

The number of outstanding shares of the registrant's common stock was 4,698,393 as of March 20, 2018.

THE LGL GROUP, INC.

		Page
PART I
Item 1.	Business.	1
Item 1A.	Risk Factors.	5
Item 1B.	Unresolved Staff Comments.	13
Item 2.	Properties.	13
Item 3.	Legal Proceedings.	13
Item 4.	Mine Safety Disclosures.	13
PART II
Item 5.	Market for the Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities.	14
Item 6.	Selected Financial Data.	14
Item 7.	Management's Discussion and Analysis of Financial Condition and Results of Operations.	16
Item 7A.	Quantitative and Qualitative Disclosures About Market Risk.	19
Item 8.	Financial Statements and Supplementary Data.	19
Item 9.	Changes in and Disagreements With Accountants on Accounting and Financial Disclosure.	19
Item 9A.	Controls and Procedures.	19
Item 9B.	Other Information.	19
PART III
Item 10.	Directors and Executive Officers and Corporate Governance.	20
Item 11.	Executive Compensation.	23
Item 12.	Security Ownership Of Certain Beneficial Owners and Management and Related Stockholder Matters.	25
Item 13.	Certain Relationships and Related Transactions, and Director Independence.	27
Item 14.	Principal Accountant Fees and Services.	28
PART IV
Item 15.	Exhibits and Financial Statement Schedules.	29
Item 16.	Form 10-K Summary.	31

PART I

Caution Concerning Forward-Looking Statements

This annual report on Form 10-K (this "Report") and the Company's other communications and statements may contain "forward-looking statements," including statements about the Company's beliefs, plans, objectives, goals, expectations, estimates, projections and intentions. These statements are subject to significant risks and uncertainties and are subject to change based on various factors, many of which are beyond the Company's control. The words "may," "could," "should," "would," "believe," "anticipate," "estimate," "expect," "intend," "plan," "target," "goal," and similar expressions are intended to identify forward-looking statements. All forward-looking statements, by their nature, are subject to risks and uncertainties. The Company's actual future results may differ materially from those set forth in the Company's forward-looking statements. For information concerning these factors and related matters, see "Risk Factors" in Part I, Item 1A in this Report, and "Management's Discussion and Analysis of Financial Condition and Results of Operations" in Part II, Item 7 in this Report. However, other factors besides those referenced could adversely affect the Company's results, and you should not consider any such list of factors to be a complete set of all potential risks or uncertainties. Any forward-looking statements made by the Company herein speak as of the date of this Report. The Company does not undertake to update any forward-looking statement, except as required by law. As a result, you should not place undue reliance on these forward-looking statements.

Item 1. Business.

The LGL Group, Inc. (together with its subsidiaries, the "Company," "LGL," "we," "us," or "our") is a globally-positioned producer of industrial and commercial products and services. We operate in two identified segments. Our electronic components segment is currently focused on the design and manufacture of highly-engineered, high reliability frequency and spectrum control products. These electronic components ensure reliability and security in aerospace and defense communications, low noise and base accuracy for laboratory instruments, and synchronous data transfers throughout the wireless and Internet infrastructure. Our electronic instruments segment is focused on the design and manufacture of high performance Frequency and Time reference standards that form the basis for timing and synchronization in various applications. The Company was incorporated in 1928 under the laws of the State of Indiana, and in 2007, the Company was reincorporated under the laws of the State of Delaware as The LGL Group, Inc. We maintain our executive offices at 2525 Shader Road, Orlando, Florida, 32804. Our telephone number is (407) 298-2000. Our common stock is traded on the NYSE American under the symbol "LGL." Our warrants to purchase common stock, expiring August 6, 2018, are available for trading on the over-the-counter market under the symbol "LGLPW."

We operate through our two principal subsidiaries, M-tron Industries, Inc. (together with its subsidiaries, "MtronPTI"), which has design and manufacturing facilities in Orlando, Florida, Yankton, South Dakota and Noida, India and Precise Time and Frequency, LLC ("PTF") which has a design and manufacturing facility in Wakefield, Massachusetts. We also have local sales and customer support offices in Sacramento, California, Austin, Texas and Hong Kong.

Our primary objective is to create long-term growth with a market-based approach of designing and offering new products to our customers through both organic research and development, and through strategic partnerships, joint ventures, acquisitions or mergers. We seek to leverage our core strength as an engineering leader to expand client access, add new capabilities and continue to diversify our product offerings. Our focus is on investments that will differentiate us, broaden our portfolio and lead toward higher levels of integration organically and through joint venture, merger and acquisition opportunities. We believe that successful execution of this strategy will lead to a transformation of our product portfolio towards longer product life cycles, better margins and improved competitive position.

Overview of MtronPTI

Originally founded in 1965, MtronPTI designs, manufactures and markets highly-engineered, high reliability frequency and spectrum control products. 

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These component-level devices are used extensively in infrastructure equipment for the telecommunications and network equipment industries, as well as in electronic systems for applications in defense, aerospace, earth-orbiting satellites, down-hole drilling, medical devices, instrumentation, industrial devices and global positioning systems. As an engineering-centric company, MtronPTI provides close support to the customer throughout their products' entire life cycle, including product design, prototyping, production, and subsequent product upgrades.This collaborative approach has resulted in the development of long-standing business relationships with its blue-chip customer base.

All of its production facilities are ISO 9001:2008 certified, ITAR registered and RoHS compliant. In addition, its U.S. production facilities in Orlando and Yankton are AS9100 Rev C and MIL-STD-790 certified.

MtronPTI Products

MtronPTI's portfolio is divided into two product groupings, Frequency Control and Spectrum Control, and has expanded from primarily crystal-based components to include higher levels of integration, advanced materials science, cavity-based products, and various types of compensation methods employing integrated circuits and other methods to create products geared for applications that require high reliability in harsh environments. These products are differentiated by their precise level of accuracy, their stability over time and within harsh environments, and their very low phase noise.

MtronPTI's Frequency Control product group includes a broad portfolio of XTAL, clock oscillators, VCXO, TCXO OCXO and DOCXO devices which meet some of the tightest specifications, including IEEE 1588 standards. These devices may be based on quartz, quartz MEMS, or advanced materials science designed to achieve higher performance levels than quartz. MtronPTI's products offer high reliability over a wide temperature range and are well-suited for harsh environments, including shock and vibration-resistant oscillators with low-g sensitivity. These products are designed for applications within aerospace and defense, telecommunications infrastructure and instrumentation markets.

MtronPTI's Spectrum Control product group includes a wide array of radio frequency (“RF”), microwave and millimeter wave filters and diplexers covering a frequency range from 1 MHz to 90 GHz, and solid state power amplifiers covering a frequency range from 300 MHz to 26 GHz, with power output from 10 Watts to 10 kWatts. Filter devices include crystal, ceramic, LC, tubular, combline, cavity, interdigital and metal insert waveguide, as well as digital, analog and mechanical tunable filters, switched filter arrays and RF subsystems. Power amplifiers add active devices to MtronPTI's portfolio and include GaN, GaAS FET, LDMOS and chip and wire technologies in narrow or broadband, module or rack-mounted packages. These products are employed in applications within the aerospace, defense and commercial markets.

New product development continues to be a key focus for MtronPTI as it continues to push its roadmap to meet the needs of its served markets. Within Frequency Control, design efforts are focused on smaller packages, lower power, and use of new materials to provide compensation and harsh environment performance that surpasses customer requirements. Spectrum Control seeks to develop higher power handling, higher levels of integration and a range of integrated products within the RF subsystem.

Overview of PTF

PTF designs, manufactures and markets for sale time and frequency products. The industries PTF serves include computer networking, satellite earth stations, electric utilities, broadcasting, and telecommunication systems. PTF was originally founded in 2002 and the company's assets were acquired by LGL in September 2016 through a business acquisition, making us a broader based supplier of highly engineered products for the generation of time and frequency references for synchronization and control. Since its inception, PTF has developed a comprehensive portfolio of time and frequency instruments complemented by a wide range of ancillary products such as distribution amplifiers and redundancy auto switches.

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PTF Products

PTF's products range from simple, low cost time and frequency solutions, to premium products designed to deliver maximum performance for the most demanding applications. PTF's products include Frequency and Time Reference Standards, distribution amplifiers, redundancy auto switches and NTP servers, all of which are used in a broad range of applications worldwide.

PTF's Frequency and Time Reference Standards include quartz Frequency Standards, GPS/GNS Frequency and Time Standards and rubidium atomic Frequency Standards. The de facto standard for many highly demanding applications, such as satellite communications, is PTF's range of GPS/GNS disciplined quartz frequency and time standards. Because of the high quality quartz oscillators utilized they deliver outstanding phase noise and short term stability performance for applications where low noise is paramount. This outstanding short-term performance, coupled with the long-term stability and accuracy of the external GPS/GNS reference, provides the user an excellent all around performance that is highly cost-effective.

When two or more computers are involved, accurate time keeping is a challenge especially when the computers are in different locations. PTF's range of GNS Time and Frequency References and Network Time Servers deliver a high level of performance that allows customers to synchronize to Universal Time Coordinated, in a number of cost- effective forms to meet a multitude of time and frequency reference requirements. Applications range from low phase noise, highly stable and accurate, system frequency references for Sat-Com and Digital Broadcasting applications, to computer networks, shipboard time code references and e-commerce time stamping applications.

PTF's portfolio of distribution amplifiers covers multiple signal types including RF, digital, time code, configurable and optical. The distribution range is designed to complement the high quality of the frequency and time references, and provide the most effective cost/performance solution for the application, including options for full remote monitoring/control (including RF analog signal monitoring) and optional level control.

The distribution product range includes standard fixed configuration units with either 12 or 16 channels, together with more flexible units that allow the user to define specific configurations including different types of input/output signals combined into a convenient 1U or 2U package with up to 36 output channels.

PTF's series of redundancy auto switches range from simple level detection through to highly sophisticated sensing capability, extremely fast switching options and full Ethernet connectivity, to provide remote monitoring control, and including integration with SNMP management systems. The most recent model includes multi-channel input capability as well as the ability to switch up to three input types of signals.

Customers

We primarily work directly with OEMs to define the right solutions for their unique applications, including the design of custom parts with unique part numbers. Actual sales of production parts may be directly to the OEM or through either their designated contract manufacturers ("CMs") or through franchised distributors of our products. As a result, we have highly-skilled sales engineers who work directly with the designers and program managers at its OEMs, providing a high-level of engineering support at all points within the process.

In 2017, our largest customer, an electronics contract manufacturing company in the aerospace and defense markets, accounted for $3,744,000, or 16.7%, of the Company's total revenues, compared to $3,275,000, or 15.7%, in 2016.

As of December 31, 2017, four of our largest customers accounted for approximately $1,100,000, or 32.0%, of accounts receivable. As of December 31, 2016, four of our largest customers accounted for approximately $1,242,000, or 35.1%, of accounts receivable. The insolvency of any of these customers could have a material adverse impact on our liquidity.

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Research and Development

Utilizing our understanding of market requirements, we employ a disciplined approach to capital allocation when selecting new product development projects. A cross-functional team comprised of engineering, marketing, operations, sales and finance reviews the merits of specific projects, seeking to invest in products that will exceed a specific return on investment level and a payback expectation within one to two years. In addition, the team considers the inherent value of intellectual property that each project presents with consideration for technical roadmap objectives.

Research and development expense was approximately $1,827,000 and $1,906,000 in 2017 and 2016, respectively, and will remain a significant part of the Company's efforts to revitalize our intellectual property position.

Marketing and Sales

We have a highly skilled team of sales engineers who work in tandem with a worldwide network of more than 30 independent external manufacturer representatives and franchised electronics distributors to market and sell our products. An important part of the sales process is gaining qualification of specific products from the OEM, confirming suitability for use in a specific system design, which is commonly referred to as a "design-win." Through direct contact with our clients and through our representative network, we are able to understand the needs of the marketplace and then guide our product development process to allocate resources to meeting those requirements.

Seasonality

Our business is not seasonal, although shipment schedules may be affected by the production schedules of our customers or their CMs based on regional practices or customs.

Domestic Revenues

Our domestic revenues were $16,090,000 in 2017, or 71.8% of total consolidated revenues, compared to $14,893,000, or 71.3% of total consolidated revenues, in 2016.

International Revenues

Our international revenues were $6,313,000 in 2017, or 28.2% of total consolidated revenues, compared to $5,998,000, or 28.7% of total consolidated revenues, in 2016. In each of 2017 and 2016, these revenues were derived mainly from customers in Asia, with significant sales in Malaysia. We avoid significant currency exchange risk by transacting and settling substantially all international sales in United States dollars.

Order Backlog

Our order backlog was $11,713,000 and $10,549,000 as of December 31, 2017 and 2016, respectively. The backlog of unfilled orders includes amounts based on signed contracts as well as agreed letters of intent, which we have determined are firm orders and likely to proceed. Although backlog represents only firm orders that are considered likely to be fulfilled within the 12 months following receipt of the order, cancellations or scope adjustments may and do occur.

Order backlog is adjusted quarterly to reflect project cancellations, deferrals, revised project scope and cost. We expect to fill our entire 2017 order backlog in 2018, but cannot provide assurances as to what portion of the order backlog will be fulfilled in a given year.

Raw Materials

Most raw materials used in the production of our products are available in adequate supply from a number of sources and the prices of these raw materials are relatively stable. However, some raw materials, including printed circuit boards, quartz and certain metals including steel, aluminum, silver, gold, tantalum and palladium, are subject to greater supply fluctuations and price volatility, as experienced in recent years. In general, we have been able to include some cost increases in our pricing, but in some cases our margins were adversely impacted.

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Competition

We design, manufacture and market products for the generation, synchronization and control of time and frequency as well as spectrum control products. There are numerous domestic and international manufacturers who are capable of providing custom-designed products comparable in quality and performance to our products. Our competitive strategy begins with our focus on niche markets where precise specification and reliability are the major requirements. Competitors in our electronic components segment include, but are not limited to, Vectron International (a division of Knowles Corporation), K&L Microwave (a division of Dover Corporation), Symmetricom (a division of Microsemi Corporation), and Rakon Limited. Competitors in our electronic instruments segment include, but are not limited to, Symmetricom, Spectracom Corporation and Brandywine Communications.

Intellectual Property

We have no patents, trademarks or licenses that are considered to be significant to our business or operations. Rather, we believe that our technological position depends primarily on the technical competence and creative ability of our engineering and technical staff in areas of product design and manufacturing processes, including their ability to customize to meet difficult specifications, as well as proprietary know-how and information.

Employees

As of December 31, 2017, we employed 276 people, including 136 full-time, and 11 part-time employees, along with 129 contractors. Of this total, the Company has 126 full-time and 10 part-time employees within the U.S., with 98 located in Orlando, Florida, 33 in Yankton, South Dakota, and five within its subsidiary PTF in Wakefield, Massachusetts. The Company has two full-time and one part-time employee in Hong Kong, and eight full-time employees and 129 contractors in Noida, India. None of the Company's employees are represented by a labor union and the Company considers its relationships with employees to be good.

As an engineering-centric company, nearly 20% of our workforce consists of degreed-engineers offering their expertise to product design and process development.

Environmental

Our manufacturing operations, products, and/or product packaging are subject to environmental laws and regulations governing air emissions, wastewater discharges, and the handling, disposal and remediation of hazardous substances, wastes and other chemicals. In addition, more stringent environmental regulations may be enacted in the future, both within the United States and internationally, and we cannot presently determine the modifications, if any, in our operations that any future regulations might require, or the cost of compliance that would be associated with these regulations.

To date, capital expenditures, earnings and competitive position of the Company have not been materially affected by compliance with current federal, state, and local laws and regulations (domestic and foreign) relating to the protection of the environment. However, we cannot predict the effect of future laws and regulations.

Item 1A. Risk Factors.

Investing in our securities involves risks. Before making an investment decision, you should carefully consider the risks described below. Any of these risks could result in a material adverse effect on our business, financial condition, results of operations, or prospects, and could cause the trading price of our securities to decline, resulting in a loss of all or part of your investment. The risks and uncertainties described below are not the only ones we face, but represent those risks and uncertainties that we believe are material to our business, operating results, prospects and financial condition. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also harm our business.

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Risks Related to Our Business and Industry

We are dependent on a single line of business.

Prior to our September 2016 acquisition of PTF, we were engaged only in the design, manufacture and marketing of standard and custom-engineered electronic components that are used primarily to control the frequency or timing of signals in electronic circuits. Although our acquisition of PTF added an additional product line that includes highly engineered products for the generation of time and frequency references for synchronization and control, until we see significant growth from the PTF product line or develop or acquire additional product lines we will remain dependent on our electronic components line of business. Virtually all of our 2017 and 2016 revenues came from sales of electronic components, which consist of packaged quartz crystals, oscillator modules, electronic filters and integrated modules. We expect that this product line will continue to account for substantially all of our revenues in 2018.

Given our reliance on this single line of business, any decline in demand for this product line or failure to achieve continued market acceptance of existing and new versions of this product line may harm our business and our financial condition. Additionally, unfavorable market conditions affecting this line of business would likely have a disproportionate impact on us in comparison with certain competitors, who have more diversified operations and multiple lines of business. Should this line of business fail to generate sufficient sales to support ongoing operations, there can be no assurance that we will be able to develop alternate business lines.

Our operating results vary significantly from period to period.

We experience fluctuations in our operating results. Some of the principal factors that contribute to these fluctuations include: changes in demand for our products; our effectiveness in managing manufacturing processes, costs and inventory; our effectiveness in engineering and qualifying new product designs with our OEM customers and in managing the risks associated with offering those new products into production; changes in the cost and availability of raw materials, which often occur in the electronics manufacturing industry and which affect our margins and our ability to meet delivery schedules; macroeconomic and served industry conditions; and events that may affect our production capabilities, such as labor conditions and political instability. In addition, due to the prevailing economic climate and competitive differences between the various market segments which we serve, the mix of sales between our communications, networking, aerospace, defense, industrial and instrumentation market segments may affect our operating results from period to period.

For the years ended December 31, 2017 and 2016, we had net income of approximately $117,000 and $148,000, respectively. Our revenues are derived primarily from MtronPTI, whose future rate of growth and profitability are highly dependent on the development and growth of demand for our products in the communications, networking, aerospace, defense, instrumentation and industrial markets, which are cyclical. We cannot be certain whether we will generate sufficient revenues or sufficiently manage expenses to sustain profitability.

We have a large customer that accounts for a significant portion of our revenues, and the loss of this customer, or decrease in its demand for our products, could have a material adverse effect on our results.

In 2017, our largest customer, an electronics contract manufacturing company, accounted for $3,744,000, or 16.7%, of the Company's total revenues, compared to $3,275,000, or 15.7%, in 2016. The loss of this customer, or a decrease in its demand for our products, could have a material adverse effect on our results.

A relatively small number of customers account for a significant portion of our accounts receivable, and the insolvency of any of these customers could have a material adverse impact on our liquidity.

As of December 31, 2017, four of our largest customers accounted for approximately $1,100,000, or 32.0%, of accounts receivable. As of December 31, 2016, four of our largest customers accounted for approximately $1,242,000, or 35.1%, of accounts receivable at the end of 2016. The insolvency of any of these customers could have a material adverse impact on our liquidity.

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Our order backlog may not be indicative of future revenues.

Our order backlog is comprised of orders that are subject to specific production release, orders under written contracts, oral and written orders from customers with which we have had long-standing relationships and written purchase orders from sales representatives. Our customers may order products from multiple sources to ensure timely delivery when backlog is particularly long and may cancel or defer orders without significant penalty. They also may cancel orders when business is weak and inventories are excessive. As a result, we cannot provide assurances as to the portion of backlog orders to be filled in a given year, and our order backlog as of any particular date may not be representative of actual revenues for any subsequent period.

We are a holding company, and therefore are dependent upon the operations of our subsidiaries to meet our obligations.

We are a holding company that transacts business through our operating subsidiaries. Our primary assets are cash and cash equivalents, marketable securities, the shares of our operating subsidiaries and intercompany loans. Should our cash and cash equivalents be depleted, our ability to meet our operating requirements and to make other payments will depend on the surplus and earnings of our subsidiaries and their ability to pay dividends or to advance or repay funds.

Our future rate of growth and profitability are highly dependent on the development and growth of the communications, networking, aerospace, defense, instrumentation and industrial markets, which are cyclical.

In 2017 and 2016, the majority of our revenues were derived from sales to manufacturers of equipment for the communications, networking, defense, aerospace, instrumentation and industrial markets for frequency and spectrum control devices, including indirect sales through distributors and contract manufacturers. During 2018, we expect a significant portion of our revenues to continue to be derived from sales to these manufacturers. Often OEMs and other service providers within these markets have experienced periods of capacity shortage and periods of excess capacity, as well as periods of either high or low demand for their products. In periods of excess capacity or low demand, purchases of capital equipment may be curtailed, including equipment that incorporates our products. A reduction in demand for the manufacture and purchase of equipment for these markets, whether due to cyclical, macroeconomic or other factors, or due to our reduced ability to compete based on cost or technical factors, could substantially reduce our net sales and operating results and adversely affect our financial condition. Moreover, if these markets fail to grow as expected, we may be unable to maintain or grow our revenues. The multiple variables which affect the communications, networking, aerospace, defense, instrumentation and industrial markets for our products, as well as the number of parties involved in the supply chain and manufacturing process, can impact inventory levels and lead to supply chain inefficiencies. As a result of these complexities, we have limited visibility to forecast revenue projections accurately for the near and medium-term timeframes.

The market share of our customers in the communications, networking, aerospace, defense, instrumentation and industrial markets may change over time, reducing the potential value of our relationships with our existing customer base.

We have developed long-term relationships with our existing customers, including pricing contracts, custom designs and approved vendor status. If these customers lose market share to other equipment manufacturers in the communications, networking, aerospace, defense, instrumentation and industrial markets with whom we do not have similar relationships, our ability to maintain revenue, margin or operating performance may be adversely affected.

We may make acquisitions that are not successful, or we may fail to integrate acquired businesses into our operations properly.

We intend to continue exploring opportunities to buy other businesses or technologies that could complement, enhance, or expand our current business or product lines, or that might otherwise offer us growth opportunities. We may have difficulty finding such opportunities or, if such opportunities are identified, we may not be able to complete such transactions for reasons including a failure to secure necessary financing.

Any transactions that we are able to identify and complete may involve a number of risks, including:

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‒ The diversion of our management's attention from the management of our existing business to the integration of the operations and personnel of the acquired or combined business or joint venture;

‒ Material business risks not identified in due diligence;

‒ Possible adverse effects on our operating results during the integration process;

‒ Substantial acquisition-related expenses, which would reduce our net income, if any, in future years;

‒ The loss of key employees and customers as a result of changes in management; and

‒ Our possible inability to achieve the intended objectives of the transaction.

In addition, we may not be able to integrate, operate, maintain or manage, successfully or profitably, our newly acquired operations or employees. We may not be able to maintain uniform standards, controls, policies and procedures, and this may lead to operational inefficiencies.

Any of these difficulties could have a material adverse effect on our business, financial condition, results of operations and cash flows.

If we are unable to introduce innovative products, demand for our products may decrease.

Our future operating results are dependent on our ability to develop, introduce and market innovative products continually, to modify existing products, to respond to technological change and to customize some of our products to meet customer requirements. There are numerous risks inherent in this process, including the risks that we will be unable to anticipate the direction of technological change or that we will be unable to develop and market new products and applications in a timely or cost-effective manner to satisfy customer demand.

Our markets are highly competitive, and we may lose business to larger and better-financed competitors.

Our markets are highly competitive worldwide, with low transportation costs and few import barriers. We compete principally on the basis of product quality and reliability, availability, customer service, technological innovation, timely delivery and price. Within the industries in which we compete, competition has become increasingly concentrated and global in recent years.

Many of our major competitors, some of which are larger, and potential competitors have substantially greater financial resources and more extensive engineering, manufacturing, marketing and customer support capabilities. If we are unable to successfully compete against current and future competitors, our operating results will be adversely affected.

Our ability to borrow under our credit facility may be limited by available collateral.

Our credit facility includes a revolving loan that requires cash equal to any amounts outstanding to be held as collateral in a deposit account with the lender. Should we not have sufficient cash to be held as collateral, the total amount available to borrow under the revolving loan may be reduced or not available.

Our success depends on our ability to retain key management and technical personnel and attracting, retaining, and training new technical personnel.

Our future growth and success will depend in large part upon our ability to recruit highly-skilled technical personnel, including engineers, and to retain our existing management and technical personnel. The labor markets in which we operate are highly competitive and some of our operations are not located in highly populated areas. As a result, we may not be able to recruit and retain key personnel. Our failure to hire, retain or adequately train key personnel could have a negative impact on our performance.

We purchase certain key components and raw materials from single or limited sources and could lose sales if these sources fail to fulfill our needs.

If single-source components or key raw materials were to become unavailable on satisfactory terms, and we could not obtain comparable replacement components or raw materials from other sources in a timely manner, our business,

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results of operations and financial condition could be harmed.On occasion, one or more of the components used in our products have become unavailable, resulting in unanticipated redesign and related delays in shipments.We cannot give assurance that similar delays will not occur in the future.Our suppliers may be impacted by compliance with environmental regulations including Restriction of Hazardous Substances ("RoHS") and Waste Electrical and Electronic Equipment ("WEEE"), which could disrupt the supply of components or raw materials or cause additional costs for us to implement new components or raw materials into our manufacturing processes.

As a supplier to U.S. Government defense contractors, we are subject to a number of procurement regulations and other requirements and could be adversely affected by changes in regulations or any negative findings from a U.S. audit or investigation.

A number of our customers are U.S. Government contractors. As one of their suppliers, we must comply with significant procurement regulations and other requirements. We also maintain registration under the International Traffic in Arms Regulations for all of our production facilities. One of those production facilities must comply with additional requirements and regulations for its production processes and for selected personnel in order to maintain the security of classified information. These requirements, although customary within these markets, increase our performance and compliance costs. If any of these various requirements change, our costs of complying with them could increase and reduce our operating margins.

We operate in a highly regulated environment and are routinely audited and reviewed by the U.S. Government and its agencies such as the Defense Contract Audit Agency ("DCAA") and Defense Contract Management Agency ("DCMA"). These agencies review our performance under our contracts, our cost structure and our compliance with applicable laws, regulations, and standards, as well as the adequacy of, and our compliance with, our internal control systems and policies. Systems that are subject to review include our purchasing systems, billing systems, property management and control systems, cost estimating systems, compensation systems and management information systems. 

Any costs found to be improperly allocated to a specific contract will not be reimbursed or must be refunded if already reimbursed. If an audit uncovers improper or illegal activities, we may be subject to civil and criminal penalties and administrative sanctions, which may include termination of contracts, forfeiture of profits, suspension of payments, fines and suspension, or prohibition from doing business as a supplier to contractors who sell products and services to the U.S. Government. In addition, our reputation could be adversely affected if allegations of impropriety were made against us.

From time to time, we may also be subject to U.S. Government investigations relating to our or our customers' operations and products, and are expected to perform in compliance with a vast array of federal laws, including the Truth in Negotiations Act, the False Claims Act, the International Traffic in Arms Regulations promulgated under the Arms Export Control Act, and the Foreign Corrupt Practices Act. We or our customers may be subject to reductions of the value of contracts, contract modifications or termination, and the assessment of penalties and fines, which could negatively impact our results of operations and financial condition, or result in a diminution in revenue from our customers, if we or our customers are found to have violated the law or are indicted or convicted for violations of federal laws related to government security regulations, employment practices or protection of the environment, or are found not to have acted responsibly as defined by the law. Such convictions could also result in suspension or debarment from serving as a supplier to government contractors for some period of time. Such convictions or actions could have a material adverse effect on us and our operating results. The costs of cooperating or complying with such audits or investigations may also adversely impact our financial results.

Our products are complex and may contain errors or design flaws, which could be costly to correct.

When we release new products, or new versions of existing products, they may contain undetected or unresolved errors or defects. The vast majority of our products are custom-designed for requirements of specific OEM systems. The expected business life of these products ranges from less than one year to more than 10 years depending on the application. Some of the customizations are modest changes to existing product designs while others are major product redesigns or new product platforms.

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Despite testing, errors or defects may be found in new products or upgrades after the commencement of commercial shipments.Undetected errors and design flaws have occurred in the past and could occur in the future.These errors could result in delays, loss of market acceptance and sales, diversion of development resources, damage to the Company's reputation, product liability claims and legal action by its customers and third parties, failure to attract new customers and increased service costs.

Communications and network infrastructure equipment manufacturers increasingly rely upon contract manufacturers, thereby diminishing our ability to sell our products directly to those equipment manufacturers.

There is a continuing trend among communications and network infrastructure equipment manufacturers to outsource the manufacturing of their equipment or components. As a result, our ability to persuade these OEMs to utilize our products in customer designs could be reduced and, in the absence of a manufacturer's specification of our products, the prices that we can charge for them may be subject to greater competition.

Future changes in our environmental liability and compliance obligations may increase costs and decrease profitability.

Our present and past manufacturing operations, products, and/or product packaging are subject to environmental laws and regulations governing air emissions, wastewater discharges, and the handling, disposal and remediation of hazardous substances, wastes and other chemicals. In addition, more stringent environmental regulations may be enacted in the future, and we cannot presently determine the modifications, if any, in our operations that any future regulations might require, or the cost of compliance that would be associated with these regulations.

Environmental laws and regulations may cause us to change our manufacturing processes, redesign some of our products, and change components to eliminate some substances in our products in order to be able to continue to offer them for sale.

We have significant international operations and sales to customers outside of the United States that subject us to certain business, economic and political risks.

We have office and manufacturing space in Noida, India, and a sales office in Hong Kong. Additionally, foreign revenues for 2017 and 2016 (primarily to Malaysia) accounted for 28.2% and 28.7% of our 2017 and 2016 consolidated revenues, respectively. We anticipate that sales to customers located outside of the United States will continue to be a significant part of our revenues for the foreseeable future. Our international operations and sales to customers outside of the United States subject our operating results and financial condition to certain business, economic, political, health, regulatory and other risks, including:

‒ Political and economic instability in countries in which our products are manufactured and sold;

‒ Expropriation or the imposition of government controls;

‒ Sanctions or restrictions on trade imposed by the United States government;

‒ Export license requirements;

‒ Trade restrictions;

‒ Currency controls or fluctuations in exchange rates;

‒ High levels of inflation or deflation;

‒ Greater difficulty in collecting accounts receivable and longer payment cycles;

‒ Changes in labor conditions and difficulties in staffing and managing international operations; and

‒ Limitations on insurance coverage against geopolitical risks, natural disasters and business operations.

Additionally, to date, very few of our international revenue and cost obligations have been denominated in foreign currencies. As a result, changes in the value of the United States dollar relative to foreign currencies may affect our competitiveness in foreign markets. We do not currently engage in foreign currency hedging activities, but may do so in the future to the extent that we incur a significant amount of foreign-currency denominated liabilities.

10

We rely on information technology systems to conduct our business, and disruption, failure or security breaches of these systems could adversely affect our business and results of operations.

We rely on information technology ("IT") systems in order to achieve our business objectives. We also rely upon industry accepted security measures and technology to securely maintain confidential information maintained on our IT systems. However, our portfolio of hardware and software products, solutions and services and our enterprise IT systems may be vulnerable to damage or disruption caused by circumstances beyond our control such as catastrophic events, power outages, natural disasters, computer system or network failures, computer viruses, cyber-attacks or other malicious software programs. The failure or disruption of our IT systems to perform as anticipated for any reason could disrupt our business and result in decreased performance, significant remediation costs, transaction errors, loss of data, processing inefficiencies, downtime, litigation and the loss of suppliers or customers. A significant disruption or failure could have a material adverse effect on our business operations, financial performance and financial condition.

Risks Related to Our Securities

The price of our common stock has fluctuated considerably and is likely to remain volatile, in part due to the limited market for our common stock.

From January 1, 2017 through December 31, 2017, the high and low closing sales prices for our common stock were $6.70 and $4.25, respectively, and the average daily trading volume in our common stock during that time period was approximately 14,250 shares per day. There is a limited public market for our common stock, and we cannot provide assurances that a more active trading market will develop or be sustained. As a result of limited trading volume in our common stock, the purchase or sale of a relatively small number of shares could result in significant price fluctuations and it may be difficult for holders to sell their shares without depressing the market price for our common stock.

Additionally, the market prices of our common stock may continue to fluctuate significantly in response to a number of factors, some of which are beyond our control, including the following:

‒ General economic conditions affecting the availability of long-term or short-term credit facilities, the purchasing and payment patterns of our customers, or the requirements imposed by our suppliers;

‒ Economic conditions in our industry and in the industries of our customers and suppliers;

‒ Changes in financial estimates or investment recommendations by securities analysts relating to our common stock;

‒ Market reaction to our reported financial results;

‒ Loss of a major customer;

‒ Announcements by us or our competitors of significant contracts, acquisitions, strategic partnerships, joint ventures or capital commitments; and

‒ Changes in key personnel.

Our warrants expiring August 6, 2018 may not have any value and there is a limited public market for our warrants.

On August 6, 2013, we distributed warrants to purchase shares of our common stock (expiring August 6, 2018) as a dividend to holders of our common stock on July 29, 2013, the record date for the dividend. Stockholders received five warrants for each share of our common stock owned on the record date. When exercisable, 25 warrants will entitle their holder to purchase one share of our common stock at an exercise price of $7.50 per share (subject to adjustment).

There is a limited public market for our warrants, and we cannot provide assurances that an active trading market will develop or be sustained. The warrants are quoted on the over-the-counter market under the symbol "LGLPW." Securities traded on the over-the-counter markets are typically less liquid than securities that trade on a national securities exchange, such as the NYSE American. Trading on the over-the-counter market may negatively affect the trading price and liquidity of the warrants and could result in larger spreads in the bid and ask prices for the warrants. Warrant holders may find it difficult to resell their warrants due to very limited trading volume.

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The warrants are "European style warrants" and will only become exercisable on the earlier of (i) the expiration date, August 6, 2018, and (ii) such date that the 30-day volume weighted average price per share, or VWAP, of our common stock is greater than or equal to $15.00.Once the warrants become exercisable, they may be exercised in accordance with the terms of the warrant agreement until their expiration at 5:00 p.m., Eastern Time, on the expiration date.

The warrants have an exercise price of $7.50 per share. This exercise price does not necessarily bear any relationship to established criteria for valuation of our common stock, such as book value per share, cash flows, or earnings, and you should not consider this exercise price as an indication of the current or future market price of our common stock. There can be no assurance that the market price of our common stock will exceed $7.50 per share at any time on the expiration date of the warrants, August 6, 2018, or at any other time the warrants may be exercised. If the warrants only become exercisable on the expiration date and the market price of our common stock on such date does not exceed $7.50 per share, the warrants will be of no value.

There can be no assurance that the 30-day VWAP of our common stock will be greater than or equal to $15.00 at any time prior to the expiration date of the warrants, August 6, 2018. As a result, the warrants may become exercisable only on the expiration date. If the warrants may be exercised only on the expiration date and their holder does not exercise their warrants on that date, their warrants will expire and be of no value.

No warrants will be exercisable unless at the time of exercise a prospectus relating to our common stock issuable upon exercise of the warrants is current and the common stock has been registered or qualified or deemed to be exempt under the securities laws of the state of residence of the holder of the warrants. Under the terms of the warrant agreement, we have agreed to meet these conditions and use our best efforts to maintain a current prospectus relating to common stock issuable upon exercise of the warrants until the expiration of the warrants. However, we cannot assure you that we will be able to do so, and if we do not maintain a current prospectus related to the common stock issuable upon exercise of the warrants, holders will be unable to exercise their warrants and we will not be required to settle any such warrant exercise. If the prospectus relating to the common stock issuable upon the exercise of the warrants is not current or if the common stock is not qualified or exempt from qualification in the jurisdictions in which the holders of the warrants reside, we will not be required to net cash settle or cash settle the warrant exercise, the warrants may have no value, the market for the warrants may be limited and the warrants may expire worthless.

Holders of our warrants will have no rights as a common stockholder until such holders exercise their warrants and acquire shares of our common stock.

Until warrant holders acquire shares of our common stock upon exercise of the warrants, warrant holders will have no rights with respect to the shares of our common stock underlying such warrants. Upon the acquisition of shares of our common stock through exercise of the warrants, the holders thereof will be entitled to exercise the rights of a common stockholder only as to matters for which the record date for the matter occurs after the exercise date of the warrants.

Adjustments to the exercise price of the warrants, or the number of shares of common stock for which the warrants are exercisable, following certain corporate events may not fully compensate warrant holders for the value they would have received if they held the common stock underlying the warrants at the time of such events.

The warrants provide for adjustments to the exercise price of the warrants following a number of corporate events, including (i) our issuance of a stock dividend or the subdivision or combination of our common stock, (ii) our issuance of rights, options or warrants to purchase our common stock at a price below the 10-day VWAP of our common stock, (iii) a distribution of capital stock of the Company or any subsidiary other than our common stock, rights to acquire such capital stock, evidences of indebtedness or assets, (iv) our issuance of a cash dividend on our common stock, and (v) certain tender offers for our common stock by the Company or one or more of our wholly-owned subsidiaries. The warrants also provide for adjustments to the number of shares of common stock for which the warrants are exercisable following our issuance of a stock dividend or the subdivision or combination of our common stock. Any adjustment made to the exercise price of the warrants or the number of shares of common stock for which the warrants are exercisable following a corporate event in accordance with these provisions may not fully compensate warrant holders for the value they would have received if they held the common stock underlying the warrants at the time of the event.

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Our officers, directors and 10% stockholders have significant voting power and may vote their shares in a manner that is not in the best interest of other stockholders.

Our officers, directors and 10% or greater stockholders control approximately 39.4% of the voting power represented by our outstanding shares of common stock as of March 20, 2018. If these stockholders act together, they may be able to exert significant control over our management and affairs requiring stockholder approval, including approval of significant corporate transactions. This concentration of ownership may have the effect of delaying or preventing a change in control and might adversely affect the market price of our common stock. This concentration of ownership may not be in the best interests of all of our stockholders.

Provisions in our corporate charter documents and under Delaware law could make an acquisition of the Company, which may be beneficial to our stockholders, more difficult.

Provisions in our certificate of incorporation and by-laws, as well as provisions of the General Corporation Law of the State of Delaware ("DGCL"), may discourage, delay or prevent a merger, acquisition or other change in control of the Company, even if such a change in control would be beneficial to our stockholders. These provisions include prohibiting our stockholders from fixing the number of directors, and establishing advance notice requirements for stockholder proposals that can be acted on at stockholder meetings and nominations to our board of directors (the "Board").

Additionally, Section 203 of the DGCL prohibits a person who owns in excess of 15% of our outstanding voting stock from merging or combining with us for a period of three years after the date of the transaction in which the person acquired in excess of 15% of our outstanding voting stock, unless the merger or combination is approved in a prescribed manner. We have not opted out of the restrictions under Section 203, as permitted under DGCL.

Item 1B. Unresolved Staff Comments.

None.

Item 2. Properties.

The Company's principal executive offices are located in Orlando, Florida within an MtronPTI operating facility. MtronPTI's operations are located in Orlando, Florida, Yankton, South Dakota, and Noida, India. PTF's operations are located in Wakefield, Massachusetts. We also have sales offices in Sacramento, California, Austin, Texas and Hong Kong.

MtronPTI owns one building in Orlando, Florida, containing approximately 71,000 square feet on approximately five acres of land. MtronPTI owns two buildings in Yankton, South Dakota, containing a combined total of approximately 32,000 square feet on approximately 11 acres of land. MtronPTI also leases approximately 13,000 square feet of office and manufacturing space in Noida, India. PTF leases approximately 3,600 square feet of office and manufacturing space in Wakefield, Massachusetts. We also lease approximately 700 square feet of office space in Hong Kong and approximately 400 square feet of office space in Sacramento, California. It is our opinion that the facilities referred to above are in good operating condition, suitable, and adequate for present uses.

Item 3. Legal Proceedings.

None.

Item 4. Mine Safety Disclosures.

Not applicable.

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PART II

Item 5. Market for the Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities.

Market for Common Equity

Our common stock is traded on the NYSE American, under the symbol "LGL." Based upon information furnished by our transfer agent, at March 20, 2018, we had 431 holders of record of our common stock. The following table sets forth the high and low sales prices for our common stock for the periods indicated as reported by the NYSE American:

Fiscal Year 2017	High		Low
Fourth Quarter	$	6.70	$	5.35
Third Quarter		5.83		4.25
Second Quarter		5.40		4.45
First Quarter		5.49		4.40
Fiscal Year 2016	High		Low
Fourth Quarter	$	5.83	$	3.62
Third Quarter		4.36		3.12
Second Quarter		3.83		3.05
First Quarter		4.09		2.86

On August 29, 2011, the Board authorized the Company to repurchase up to 100,000 shares of its common stock in accordance with applicable securities laws. This authorization increased the total number of shares authorized and available for repurchase under the Company's existing share repurchase program to 540,000 shares, at such times, amounts and prices as the Company shall deem appropriate. There is no expiration date for this program. As of December 31, 2017, the Company has repurchased a total of 81,584 shares of common stock under this program at a cost of $580,000, which shares are currently held in treasury; however, no shares were repurchased by the Company during the year ended December 31, 2017.

Dividend Policy

Our Board has adhered to a practice of not paying cash dividends. This policy takes into account our long-term growth objectives, including our anticipated investments for organic growth, potential technology acquisitions or other strategic ventures, and stockholders' desire for capital appreciation of their holdings. No cash dividends have been paid to our stockholders since January 30, 1989, and none are expected to be paid for the foreseeable future.

Item 6. Selected Financial Data.

You should read the following selected consolidated financial data together with ''Management's Discussion and Analysis of Financial Condition and Results of Operations'' and our consolidated financial statements and the related notes included elsewhere in this report.

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The selected consolidated statement of operations data for the years ended December 31, 2017 and 2016, and the selected consolidated balance sheet data as of December 31, 2017 and 2016, are derived from our audited financial statements included elsewhere in this report.The selected consolidated statement of operations data for the years ended December 31, 2015, 2014 and 2013, and the selected consolidated balance sheet data as of December 31, 2015, 2014 and 2013, are derived from our audited financial statements not included in this report.These consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles.Our historical results may not be indicative of the operating results to be expected in any future period.

	Year ended December 31,
	(in thousands, except share and per share data)
	2017			2016			2015			2014			2013
Revenues	$	22,402		$	20,891		$	20,713		$	23,013		$	26,201
Operating income (loss) (a)		276			(161	)		(788	)		(2,829	)		(4,164	)
Income (loss) before income taxes		219			(17	)		(703	)		(2,829	)		(4,271	)
(Provision) benefit for income taxes		(102	)		165			(8	)		4			(3,948	)
Net income (loss)	$	117		$	148		$	(711	)	$	(2,825	)	$	(8,219	)
Weighted average number of shares used in the    basic EPS calculation		2,929,641			2,665,043			2,640,803			2,595,988			2,595,362
Weighted average number of shares used in the    diluted EPS calculation		3,035,104			2,665,730			2,640,803			2,595,988			2,595,362
Per common share:
Basic and diluted net income (loss) per common    share	$	0.04		$	0.06		$	(0.27	)	$	(1.09	)	$	(3.17	)

	December 31,
	(in thousands)
	2017		2016		2015		2014		2013
Cash and cash equivalents	$	13,250	$	2,778	$	5,553	$	5,192	$	7,183
Working capital	$	21,923	$	10,135	$	9,876	$	9,909	$	12,446
Total assets	$	27,555	$	16,646	$	15,803	$	17,262	$	21,263
Stockholders' equity (b)	$	24,928	$	13,891	$	13,727	$	14,237	$	16,755

(a) Operating income (loss) is revenues less operating expenses, which excludes investment income, interest expense, gain on sale of land and equipment, insurance proceeds, other income and taxes and includes impairment charges.

(b) No cash dividends have been declared during the periods presented.

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Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations.

You should read the following discussion and analysis together with our audited consolidated financial statements and the accompanying notes. This discussion contains forward-looking statements, including statements regarding our expected financial position, business and financing plans. These statements involve risks and uncertainties. Our actual results could differ materially from the results described in or implied by these forward-looking statements as a result of various factors, including those discussed below and elsewhere in this Report, particularly under the headings "Caution Concerning Forward-Looking Statements" and "Risk Factors."

Results of Operations

2017 Compared to 2016

Consolidated Revenues, Gross Margin and Backlog

Total revenues for the year ended December 31, 2017 were $22,402,000, an increase of $1,511,000, or 7.2% from revenues of $20,891,000 in 2016. The increase is due primarily to the acquisition of PTF, which saw increased revenues of $686,000, and from an increase in filter sales of $682,000.

Consolidated gross margin, which is consolidated revenues less manufacturing cost of sales, as a percentage of revenues increased slightly to 34.6% from 33.7% for the year ended December 31, 2017, compared to the prior year. The increase reflects our strategy to move away from the low margin commodities business and focus on achieving revenue growth through the development of more complex, higher margin products, particularly in the aerospace and defense product markets.

As of December 31, 2017, our order backlog was $11,713,000, an increase of 11.0% compared to a backlog of $10,549,000 as of December 31, 2016. The backlog of unfilled orders includes amounts based on signed contracts as well as agreed letters of intent, which we have determined are firm orders likely to be fulfilled in the next 12 months.

Order backlog is adjusted quarterly to reflect project cancellations, deferrals, revised project scope and cost, and sales of subsidiaries, if any. We expect to fill our entire order backlog as of December 31, 2017 in 2018, but cannot provide assurances as to what portion of the order backlog will be fulfilled in a given year.

Operating Income (Loss)

Operating income of $276,000 for the year ended December 31, 2017, was an improvement of $436,000 from an operating loss for the year ended December 31, 2016 of ($161,000). The improvement was primarily due to the $708,000 increase in gross margins as a result of increased sales, offset by increased operating expenses of ($272,000). Engineering, selling and administrative expenses were 33.3% of revenue for the year ended December 31, 2017, compared to 34.4% of revenue for the year ended December 31, 2016.

Interest Expense, Net

Interest expense, net, was $11,000 for the year ended December 31, 2017, which was a decrease of $11,000 from $22,000 for the year ended December 31, 2016. The decrease was primarily due to an increase in interest income generated from our U.S. Treasury securities.

Other (Expense) Income, Net

For the years ended December 31, 2017 and 2016, other (expense) income, net was ($46,000) and $166,000, respectively, a decrease of $212,000 in the current year. This reduction resulted directly from the writedown in the current year of a note receivable associated with a 2011 asset sale by $102,000, and the effect of the prior period having included approximately $118,000 of net insurance proceeds received for damaged equipment and inventory.

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Income Tax (Provision) Benefit

We must make certain estimates and judgments in determining income tax expense for financial statement purposes. These estimates and judgments occur in the calculation of tax credits, tax benefits and deductions and in the calculation of certain tax assets and liabilities, which arise from differences in the timing of recognition of revenue and expense for tax and financial statement purposes. Significant changes to these estimates may result in an increase or decrease to the tax provision in a subsequent period.

In assessing the realizability of deferred tax assets, in accordance with the provisions of Accounting Standards Codification 740, Income Taxes, we consider whether it is more likely than not that some portion or all of our deferred tax assets will or will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become realizable. Based upon the weighting of positive and negative evidence, the Company has determined the results of future operations of one of its foreign subsidiaries will generate enough taxable income that it is more likely than not that deferred tax assets of $173,000 at December 31, 2017, generated from foreign net operating losses (“NOL’s”), can be utilized in the foreseeable future. The Company has also determined that a full valuation against the remaining net deferred tax assets is required and has recorded a valuation allowance to reduce deferred tax assets to the amount that is more likely than not to be realized. Should a change in circumstances lead to a change in judgment about the ability to realize deferred tax assets in future years, the Company will adjust related valuation allowances in the period that the change in circumstances occurs, along with a corresponding increase or charge to income.

On December 22, 2017, the U.S. enacted the Tax Cuts and Jobs Act (the “2017 Act”). The 2017 Act significantly changes U.S. corporate income tax law. The major changes included a reduction in the tax rate from 34% to 21%, and a one-time transition tax on the deemed repatriation of foreign earnings. The net deferred tax assets were $5,800,000 as of December 31, 2017, which reflects a net decrease of $1,719,000 from December 31, 2016, primarily due to rate changes from the Company’s implementation of the 2017 Act. The valuation allowance was $5,627,000 as of December 31, 2017, which reflects a net decrease of $1,678,000 from December 31, 2016, primarily due to rate changes from the Company’s implementation of the 2017 Act. There was no effect on the income tax provision as all effects of the 2017 Act were offset by previous NOL carryforwards.

We recorded an income tax (provision) benefit for the years ended December 31, 2017 and 2016 of ($102,000) and $165,000, respectively. The increase in our income tax provision over the prior year was primarily due to the reversal in the prior year of $214,000 in valuation allowance on a foreign subsidiary, combined with the use of deferred tax assets of $41,000 from that foreign subsidiary in the current year.

Net Income

Net income for the year ended December 31, 2017 was $117,000 compared with income of $148,000 for the year ended December 31, 2016. Basic and diluted net income per share for the years ended December 31, 2017 and 2016 was $0.04 and $0.06, respectively.

Liquidity and Capital Resources

As of December 31, 2017 and 2016, cash and cash equivalents were $13,250,000 and $2,778,000, respectively.

Cash provided by operating activities was $681,000 and $278,000 for the years ended December 31, 2017 and 2016, respectively. The $403,000 increase was primarily due to the impairment of a note receivable of $102,000, deferred income taxes of $255,000, and a prior year gain on disposal of assets of $110,000, offset by a decrease in non-cash adjustments for depreciation and amortization of ($137,000).

Cash used in investing activities for the years ended December 31, 2017 and 2016 was ($1,003,000) and ($3,045,000), respectively. Impacting the current year was $96,000 in cash received from the sale of a small piece of land at the Company’s headquarters in Orlando. The primary change in cash used in investing activities is the Company’s transfer of cash and cash equivalents to investment accounts which yield a greater return.

For the year ended December 31, 2017, financing activity related to the $10,794,000 received as a result of our rights offering. The Company intends to use the net proceeds from the Rights Offering as additional capital for general

17

corporate purposes and for acquisitions and new business development broadly, including industries and businesses outside the scope of existing operations, although it has not identified any specific acquisitions or business development opportunities at this time.

As of December 31, 2017, our consolidated working capital was $21,923,000, compared to $10,135,000 as of December 31, 2016. As of December 31, 2017, we had current assets of $24,550,000, current liabilities of $2,627,000 and a ratio of current assets to current liabilities of 9.35 to 1.00. As of December 31, 2016, we had current assets of $12,890,000, current liabilities of $2,755,000 and a ratio of current assets to current liabilities of 4.68 to 1.00. Management continues to focus on efficiently managing working capital requirements to match operating activity levels, and will seek to deploy the Company’s working capital where it will generate the greatest returns.

On September 30, 2016, MtronPTI renewed its Loan Agreement (the "CNB Loan Agreement") with City National Bank of Florida ("City National"). The CNB Loan Agreement provides for a revolving line of credit in the amount of $3.0 million (the "CNB Revolver"), which bears interest at a variable rate equal to 30-day LIBOR plus 200 basis points to be set on the first day of each month, and expires on September 30, 2018. The CNB Loan Agreement also provides that MtronPTI will pay City National a fee equal to 0.75% per year on the daily unused amount. Our obligations under the CNB Loan Agreement are secured only by cash collateral and do not require any other liens.

In connection with the CNB Loan Agreement, MtronPTI also entered into a Cash Collateral Agreement with City National (the "CNB Cash Collateral Agreement") and delivered a Revolving Promissory Note in the principal amount of $3.0 million to City National (the "CNB Revolving Promissory Note").

The CNB Cash Collateral Agreement provides that MtronPTI will hold cash collateral equal to any amounts outstanding under the CNB Revolver in a non-interest bearing deposit account with City National. Provided that MtronPTI is not in default of any of its obligations under the CNB Loan Agreement, the CNB Revolving Promissory Note or the CNB Cash Collateral Agreement, the funds collateralizing the CNB Revolver are restricted only to the extent of the outstanding principal amount under the CNB Revolver. As of December 31, 2017 and 2016, there was no balance outstanding under the CNB Revolver and no associated restricted cash.

We believe that existing cash and cash equivalents and cash generated from operations will be sufficient to meet our ongoing working capital and capital expenditure requirements for the next 12 months from the date of this filing.

Our Board has adhered to a practice of not paying cash dividends. This policy takes into account our long-term growth objectives, including our anticipated investments for organic growth, potential technology acquisitions or other strategic ventures, and stockholders' desire for capital appreciation of their holdings. No cash dividends have been paid to the Company's stockholders since January 30, 1989, and none are expected to be paid for the foreseeable future.

Critical Accounting Policies

Our significant accounting policies are described in Note A. "Accounting and Reporting Policies" in the accompanying Notes to the Consolidated Financial Statements. The Company's discussion and analysis of its financial condition and results of operations are based upon the Company's consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. On an ongoing basis, we evaluate our estimates, including those related to the carrying value of inventories, the likelihood of collecting outstanding accounts receivable, value of stock based compensation, and the provision for income taxes. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. In the past, actual results have not been materially different from our estimates. However, results may differ from these estimates under different assumptions or conditions.

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Off-Balance Sheet Arrangements

We do not have any off-balance sheet arrangements.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

Not applicable.

Item 8. Financial Statements and Supplementary Data.

See the financial statements included at the end of this report beginning on page 33.

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure.

None.

Item 9A. Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in our reports under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), is recorded, processed, summarized and reported within the time periods specified in the rules and forms, and that such information is accumulated and communicated to us, including our chief executive officer and chief financial officer, as appropriate, to allow timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, we recognize that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, as ours are designed to do, and we necessarily were required to apply our judgment in evaluating whether the benefits of the controls and procedures that we adopt outweigh their costs.

As required by Rules 13a-15(b) and 15d-15(b) of the Exchange Act, an evaluation as of December 31, 2017 was conducted 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 defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act). Based on this evaluation, our chief executive officer and chief financial officer concluded that our disclosure controls and procedures, as of December 31, 2017, were effective at the reasonable assurance level.

Management's Annual Report on Internal Controls Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rules 13a-15(f) and 15d-15(f). Under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, we conducted an evaluation of the effectiveness of our internal controls over financial reporting as of December 31, 2017, based on the framework in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework). Based on that evaluation, our management has concluded that our internal controls over financial reporting were effective as of December 31, 2017.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal controls over financial reporting during the fourth quarter ended December 31, 2017, or in other factors that could significantly affect these controls, that materially affected, or are reasonably likely to materially affect, our internal controls over financial reporting.

Item 9B. Other Information.

None.

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PART III

Item 10. Directors, Executive Officers and Corporate Governance.

Directors

The following table sets forth information regarding our directors, including their business experience for the past five years (and, in some instances, for prior years) and their specific experience, qualifications, attributes or skills that led to the conclusion that they should serve as directors.

Name	Age	Director Since	Offices and Positions Held With the Company, Business Experience and Principal Occupation for the Last Five Years, and Directorships in Public Corporations and Investment Companies
Michael J. Ferrantino, Sr.	75	2014	Chairman of the Board, The LGL Group, Inc. (April 2016 to November 2017); Chief Executive Officer, The LGL Group, Inc. (June 2014 to present); Executive Chairman of the Board, M-tron Industries, Inc. (October 2013 to present); President and Chief Executive Officer, Valpey-Fisher Corporation (September 2002 to November 2009), a provider of electronic components used in communications, medical, defense and aerospace, industrial and computer applications for original equipment manufacturers and contract manufacturers worldwide; President, Micro Networks Division, Integrated Circuit Systems, Inc. (January 2002 to September 2002), a supplier of precision timing devices for optical networking, wireless infrastructure and high end network servers using surface acoustic wave and RF technology; President and Chief Executive Officer, Micro Networks Corporation (pre-2000 to January 2002); and Chairman of the Board of Directors, Micro Networks Corporation (April 2000 to January 2002). Mr. Ferrantino brings to the Company's board of directors (the "Board") his extensive knowledge and leadership experience in the RF/microwave integrated system and frequency control industries.
Marc J. Gabelli	50	2004	Chairman of the Board, The LGL Group, Inc. (December 2017 to present, and September 2004 to April 2016); Chairman of Gabelli Merger Plus Trust since July 2017; Director of GAMCO Investors, Inc. from November 2014 to May 2016; Director and President of Associated Capital Group (October 2015 to May 2016); Managing Partner, Horizon Research (January 2013 to present), an investment management and research services provider; Chief Executive Officer, Gabelli Securities International Ltd. (1994 to present), a global alternative asset management platform and merchant advisor; President and Managing Partner, GGCP, Inc. (1999 to present), a private corporation that makes investments for its own account; Managing Member, Commonwealth Management Partners LLC (2008 to present); and Director and Managing Partner, GAMA Funds Holdings GmbH (2009 to present). Mr. Gabelli brings to the Board his extensive knowledge of the Company's business and industry due to his longstanding service on the Board, as well as his financial expertise and leadership experience as an executive of various investment firms.

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Timothy Foufas	49	2007	Managing Partner, Plato Foufas & Co. LLC (2005 to present), a financial services company; President, Levalon Properties LLC (2007 to present), a real estate property management company; Senior Vice President, Bayshore Management Co. LLC (2005 to 2006), a real estate property management company; Director of Investments, Liam Ventures Inc. (2000 to 2005), a private equity investment firm; and Director, ICTC Group, Inc. (2010 to 2013), a rural local exchange carrier headquartered in Nome, ND. Mr. Foufas brings to the Board his management skills and expertise in financial, investment and real estate matters.
Donald H. Hunter	61	2013	Principal, Donald Hunter LLC (April 2007 to present), a consulting practice based in Wellesley, MA; Since February 2018, Mr. Hunter has been a director of Kush Bottles, Inc. (OTCQB: KSHB), a packaging and supply company serving the regulated Cannabis industry; Mr. Hunter was Chief Operating Officer and Chief Financial Officer for Harbor Global Company Limited (October 2000 to December 2006), a public company that owned and operated international investment management and natural resources subsidiaries; Chief Operating Officer, Pioneer Global Investments, a Division of the Pioneer Group, Inc. (August 1998 to October 2000), a company that provided investment management services and owned several natural resources investments; and Manager of International Finance, the Pioneer Group, Inc. (January 1991 to August 1998), with financial responsibility for international strategic start-up companies. Mr. Hunter served as a director of Juniper Pharmaceuticals, Inc. (February 2014 to March 2016), a specialty pharmaceuticals company (NASDAQ: JNP), where he served as Chairman of the Audit Committee; LICT Corporation (June 2014 to May 2016), an integrated provider of broadband and voice services (OTC PK: LICT); and the Pioneer First Polish Trust Fund, where he served as Audit Committee Chairman for the first mutual fund in Poland. Mr. Hunter brings to the Board financial, operating, corporate development, international and mergers and acquisition experience.
Manjit Kalha	43	2011	Managing Partner, Horizon Research (August 2012 to present), a firm that provides investment management and research services; Chief Executive Officer, Horizon AMC (June 2008 to present), a firm that provides investment management and consulting services; Chief Executive Officer and Director, Jeet Associates Private Limited (December 2006 to present), a consulting firm based in New Delhi that provides business strategy, finance, and taxation advisory services; and Co-founder and Chief Operating Officer, Radiant Polymers Private Limited (2001 to 2006), a manufacturing company of high quality specialty plastic components. Mr. Kalha brings to the Board his experience in management and manufacturing operations, and an extensive knowledge of global financial markets.
Frederic V. Salerno, Jr.	51	2016	Strategic Sourcing Manager, Brunswick Corporation (2014 to present); Supply Chain Manager, Poseidon Barge Company (2013 to 2014); Strategic Sourcing Manager, Tuthill Corporation (2009 to 2012); Materials Director, Terex Corporation (2006 to 2008); and Strategic Manufacturing Manager, Ingersoll-Rand Corporation, (1995 to 2006). Mr. Salerno brings to the Board 25 years of experience in operations and supply chain management.
Hendi Susanto	44	2016	Vice President, Equity Research, Technology Leader, Gabelli & Company, a provider of institutional research and brokerage services (August 2007 to present). Mr. Susanto brings to the Board extensive experience in evaluating investments in technology, and special situations such as mergers and acquisitions, convertible debts and restructuring.

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Antonio Visconti 58 2014 Vice President, Hittite Microwave Corporation (2011 to 2014), a leader in high performance integrated circuits (ICs), modules, and subsystems for RF microwave and millimeter-wave applications; Business Director, Maxim Integrated Products (2010 to 2011), a leading manufacturer of linear and mixed-signal ICs; Chief Executive Officer and Founder, Aczent Inc. (2008 to 2011), a developer of analog solutions for industrial applications, acquired in 2011 by major semiconductor manufacturer; and Vice President and General Manager, National Semiconductor's Data Conversion division (2002 to 2008). Mr. Visconti has over 25 years of experience in the high technology industry and brings to the Board engineering, business development and technology acquisition expertise.  

Executive Officers

The following table sets forth information regarding our executive officers, including their business experience for the past five years and prior years.

Name	Age	Offices and Positions Held With the Company, Business Experience and Principal Occupation for the Last Five Years
Michael J. Ferrantino, Sr.	75	Mr. Ferrantino's business experience, including his term in office, is listed in the section above titled "Directors."
James W. Tivy	50	Chief Financial Officer, The LGL Group, Inc. (January 2018 to present); SVP, Finance for INTL FCStone Securities Inc. (November 2012 to January 2017); Group Controller, INTL FCStone Inc. (January 2008 to November 2012).

Family Relationships

There are no family relationships among our executive officers and directors.

Section 16(a) Beneficial Ownership Reporting Compliance

Section 16(a) of the Exchange Act requires the Company's directors, executive officers and holders of more than 10% of the Company's common stock to file with the SEC and NYSE American initial reports of ownership and reports of changes in the ownership of common stock and other equity securities of the Company. Such persons are required to furnish the Company with copies of all Section 16(a) filings.

Based solely upon a review of the copies of the forms furnished to the Company, the Company believes that its directors, officers and holders of more than 10% of the Company's common stock complied with all applicable filing requirements during the 2017 fiscal year.

Code of Ethics

We adopted a code of ethics as part of our Business Conduct Policy, which applies to all of our employees, including our principal executive, financial and accounting officers. Our Business Conduct Policy is available at www.lglgroup.com. Amendments to and waivers of our code of ethics and Business Conduct Policy will be disclosed on our website.

Audit Committee

The Audit Committee of the Board (the "Audit Committee") consists of Messrs. Hunter, Kalha and Susanto. The Board has determined that all Audit Committee members are financially literate and independent under applicable NYSE American listing standards. Mr. Hunter serves as Chairman of the Audit Committee, and the Board has determined that he qualifies as the Audit Committee financial expert, as defined under the Exchange Act.

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Item 11. Executive Compensation.

Summary Compensation Table

The following table sets forth information with respect to compensation earned by the named executive officers:

Name and Principal Position	Year	Salary ($)		Bonus ($)			Stock Awards(1) ($)		Option Awards(1) ($)		All Other Compensation ($)			Total ($)
Michael J. Ferrantino, Sr.	2017		214,603		165,000	(2)		—		—		7,472	(4)		387,075
Chief Executive Officer	2016		144,000		78,750	(3)		—		32,084		6,532	(4)		261,366
Patti A. Smith (5)	2017		116,513		18,500	(6)		—		—		4,556	(7)		139,569
Chief Financial Officer (resigned November 2017)	2016		130,000		18,000	(6)		—		4,450		3,900	(7)		156,350

(1) Reflects the aggregate grant date fair value of stock awards or option awards granted in the applicable year, computed in accordance with Financial Accounting Standard Board Standards Codification Topic 718. For a discussion of the assumptions and methodologies used to calculate these amounts, please see Note E – Stock-Based Compensation in the Notes to Consolidated Financial Statements.

(2) Reflects Mr. Ferrantino's Annual Incentive Payment for 2016 (defined below) of $95,000 along with discretionary bonuses of $70,000 awarded by the Company’s Board of Directors.

(3) Reflects Mr. Ferrantino's Annual Incentive Payment for 2015 (defined below).

(4) Amounts include reimbursement of healthcare insurance costs and the personal income tax expense arising from those costs, as well as matching contributions made by the Company to the individual's 401(k) plan.

(5) Ms. Smith served as the Company's Chief Financial Officer from April 2015 until her resignation in November 2017.

(6) Ms. Smith was eligible to participate in the Company's Annual Management Incentive Plan which is based on the Company's financial and operational performance, and individual performance. For 2017 and 2016, Ms. Smith earned bonuses of $18,500 and $18,000 respectively, pursuant to the Company's Annual Management Incentive Plan.

(7) Amounts include matching contributions made by the Company to the individual's 401(k) plan.

Employment Agreements

Michael J. Ferrantino, Sr.

Pursuant to an offer letter entered into between the Company and Michael J. Ferrantino, Sr. (the "Offer Letter") on May 21, 2014, and as revised on January 11, 2017 (the “Revised Offer Letter”), Mr. Ferrantino is eligible to receive an annual incentive payment (the "Annual Incentive Payment") based on the increase in the economic value of the Company ("EV"), as further described in the Revised Offer Letter, over the prior fiscal year. The total amount of the Annual Incentive Payments payable for any fiscal year shall be equal to 3.0% of the increase in EV over the prior fiscal year. Mr. Ferrantino's Annual Incentive Payment is included in the Summary Compensation Table above.

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Outstanding Equity Awards at Fiscal Year-End

The following table sets forth information regarding equity awards held by our named executive officers as of December 31, 2017:

	Option Awards
Name	Number of Securities Underlying Unexercised Options (#) Exercisable			Number of Securities Underlying Unexercised Options (#) Unexercisable		Option Exercise Price ($)		Option Expiration Date
Michael J. Ferrantino, Sr.		45,000	(1)		—		4.90	6/11/2019
		1,558	(2)		—		3.53	12/11/2019
		13,500	(3)		13,500		5.02	12/30/2021
Patti A. Smith (4)		3,000	(5)		—		4.15	2/5/2018
		2,500	(6)		—		3.90	2/5/2018

(1) On June 11, 2014, the Company granted Mr. Ferrantino options to purchase 75,000 shares of common stock under the 2011 Incentive Plan with a grant date fair value of $111,055. These options vest as follows: 60% on the grant date; an additional 20% on the second anniversary of the grant date; and the remaining 20% on the third anniversary of the grant date. On March 1, 2016, Mr. Ferrantino voluntarily forfeited 30,000 of these options that were unvested.

(2) On December 11, 2014, Mr. Ferrantino, as a director of the Company, received a retainer in the form of options to purchase 1,558 shares of common stock under the 2011 Incentive Plan with a grant date fair value of $1,424. These options vest as follows: 30% on the first anniversary of the grant date; an additional 30% on the second anniversary of the grant date; and the remaining 40% on the third anniversary of the grant date.

(3) On December 30, 2016, Mr. Ferrantino, was granted options to purchase 27,000 shares of common stock under the Amended and Restated 2011 Incentive Plan with a grant date fair value of $32,084. These options vest as follows: 25% on the grant date; 25% on the first anniversary of the grant date; an additional 25% on the second anniversary of the grant date; and the remaining 25% on the third anniversary of the grant date.

(4) Ms. Smith served as the Company's Chief Financial Officer from April 2015 until her resignation in November 2017.

(5) On March 12, 2015, the Company granted Ms. Smith options to purchase 5,000 shares of common stock under the 2011 Incentive Plan with a grant date fair value of $5,150. These options were set to vest as follows: 30% on the first anniversary of the grant date; an additional 30% on the second anniversary of the grant date; and the remaining 40% on the third anniversary of the grant date. Upon her resignation, 2,000 of these options were forfeited, and the expiration date was amended to allow up to 90 days for exercise of the vested portion of the option grant. Ms. Smith exercised the 3,000 vested options on February 2, 2018.

(6) On September 2, 2016, the Company granted Ms. Smith options to purchase 5,000 shares of common stock under the Amended and Restated 2011 Incentive Plan with a grant date fair value of $4,450. These options were set to vest as follows: 25% on the grant date; 25% on the first anniversary of the grant date; an additional 25% on the second anniversary of the grant date; and the remaining 25% on the third anniversary of the grant date. Upon her resignation, 2,500 of these options were forfeited, and the expiration date was amended to allow up to 90 days for exercise of the vested portion of the option grant. Ms. Smith exercised the 2,500 vested options on February 2, 2018.

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Non-Employee Director Compensation

The following table sets forth information with respect to compensation earned by or awarded to each non-employee director who served on the Board during the fiscal year ended December 31, 2017:

Name	Fees Earned or Paid in Cash ($)		Stock Awards ($) (1)		Option Awards ($) (1)		Total ($)
Timothy Foufas		25,000		10,000		—		35,000
Marc J. Gabelli		14,500		10,000		—		24,500
Donald H. Hunter		26,000		10,000		—		36,000
Manjit Kalha		24,250		—		10,000		34,250
Frederic Salerno		19,500		10,000		—		29,500
Hendi Susanto		23,250		10,000		—		33,250
Antonio Visconti		19,500		10,000		—		29,500

(1) On December 11, 2017, non-employee directors received grants of 1,805 shares of restricted common stock as 50% of their base compensation for fiscal 2017 ($10,000), except for Mr. Kalha, who elected to receive a grant of options to purchase 9,541 shares of common stock as 50% of his base compensation for fiscal 2017. These shares and options were granted under the Amended and Restated 2011 Incentive Plan. The shares of restricted common stock vested immediately. The options vest as follows: 30% on the first anniversary of the grant date; 30% on the second anniversary of the grant date; and the remaining 40% on the third anniversary of the grant date.

In 2017, our directors also received the following in addition to the equity awards granted as part of their base compensation; (i) the remaining 50% of their annual base compensation in cash ($10,000); (ii) $2,000 for each meeting of the Board attended in person or $750 for each meeting held telephonically; and (iii) the Audit Committee Chairman received a $2,000 annual cash retainer and the Nominating Committee Chairman, and Compensation Committee Chairman each received a $1,000 annual cash retainer.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

The following table sets forth information regarding the number of shares of our common stock beneficially owned on March 20, 2018, by:

‒ Each person who is known to us to beneficially own more than 5% of our common stock;

‒ Each of our directors, nominees and named executive officers; and

‒ All of our directors and executive officers, as a group.

The amounts and percentages of common stock beneficially owned are reported on the basis of regulations of the SEC governing the determination of beneficial ownership of securities. Under the rules of the SEC, a person is deemed to be a "beneficial owner" of a security if that person has or shares voting power, which includes the power to vote or direct the voting of a security, or investment power, which includes the power to dispose of or to direct the disposition of a security. A person is also deemed to be a beneficial owner of any securities of which that person has a right to acquire beneficial ownership within 60 days. Under these rules, more than one person may be deemed a beneficial owner of the same securities and a person may be deemed to be a beneficial owner of securities as to which such person has no economic interest. Except as otherwise indicated in these footnotes, each of the beneficial owners listed has, to our knowledge, sole voting and investment power with respect to the indicated shares of common stock.

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Except as otherwise set forth below, the address of each of the persons listed below is:The LGL Group, Inc., 2525 Shader Road, Orlando, Florida 32804.

	Common Stock Beneficially Owned (1)
Name and Address of Beneficial Owner	Shares			%
5% Stockholders:
Mario J. Gabelli		1,094,245	(2)		23.3
Directors and Named Executive Officers:
Marc J. Gabelli		569,201	(3)		12.1
Michael J. Ferrantino, Sr.		102,438	(4)		2.2
Timothy Foufas		27,765	(5)	*
Donald H. Hunter		15,738	(5)	*
Manjit Kalha		15,268	(6)	*
Antonio Visconti		11,761	(5)	*
Frederic V. Salerno, Jr.		3,797		*
Hendi Susanto		3,797		*
James W. Tivy		3,000		*
All executive officers and directors as a group    (9 persons)		752,765	(7)		16.0

* Less than 1% of outstanding shares.

(1) The applicable percentage of ownership for each beneficial owner is based on 4,698,393 shares of common stock outstanding as of March 20, 2018. Shares of common stock issuable upon exercise of options, warrants or other rights beneficially owned that are exercisable within 60 days are deemed outstanding for the purpose of computing the percentage ownership of the person holding such securities and rights and all executive officers and directors as a group.

(2) Includes (i) 481,310 shares of common stock owned directly by Mario J. Gabelli; (ii) 169,323 shares owned by MJG-IV Limited Partnership, of which Mario J. Gabelli is the general partner and has less than 100% interest; (iii) 430,977 shares owned by GGCP, Inc., of which Mario J. Gabelli is the chief executive officer, a director and controlling shareholder; and (iv) 12,635 shares held by GAMCO Asset Management Inc.. Mario J. Gabelli disclaims beneficial ownership of the shares owned by MJG-IV Limited Partnership, GGCP, Inc., and GAMCO Asset Management Inc., except to the extent of his pecuniary interest therein. Mario J. Gabelli's business address is 401 Theodore Fremd Avenue, Rye, New York 10580-1430. This disclosure is based solely on information in a Schedule 13D filed by Mario J. Gabelli with the SEC on November 28, 2017.

(3) Includes (i) 57,603 shares of common stock owned directly by Marc J. Gabelli; (ii) 2,318 shares issuable upon the exercise of options held by Marc Gabelli; and (iii) 511,598 shares held by Venator Merchant Fund, L.P. ("Venator Fund"). Venator Global, LLC ("Venator Global"), which is the sole general partner of Venator Fund, may be deemed to beneficially own the securities owned by Venator Fund. Marc J. Gabelli, who is the President and Sole Member of Venator Global, may be deemed to beneficially own the securities owned by Venator Fund. Marc J. Gabelli disclaims beneficial ownership of the securities owned by Venator Fund, except to the extent of his pecuniary interest therein.

(4) Includes 60,058 shares issuable upon the exercise of options.

(5) Includes 2,318 shares issuable upon the exercise of options.

(6) Includes 6,669 shares issuable upon the exercise of options.

(7) Includes 676,766 shares of common stock and 75,999 shares issuable upon the exercise of options.

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Equity Compensation Plan Information

The following table provides information as of December 31, 2017 about our common stock that may be issued upon the exercise of options, warrants and rights under all of our existing equity compensation plans (including individual arrangements):

Plan Category	Number of securities to be issued upon exercise of outstanding options, warrants and rights (a)		Weighted- average exercise price of outstanding options, warrants and rights (b)		Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column(a)) (c)
Equity compensation plans approved by security    holders (1)		181,385	$	4.98		416,852
Equity compensation plans not approved by security    holders		—		—		—
Total		181,385	$	4.98		416,852

(1) The Amended and Restated 2011 Incentive Plan was approved by our stockholders on June 16, 2016. 750,000 shares of common stock are authorized for issuance under the Amended and Restated 2011 Incentive Plan. Options to purchase 181,385 shares of common stock issued under the Amended and Restated 2011 Incentive Plan were outstanding as of December 31, 2017.

Item. 13 Certain Relationships and Related Transactions, and Director Independence.

Transactions with Related Persons, Promoters and Certain Control Persons

As of December 31, 2017 approximately $11,050,000 was invested in a United States Treasury money market fund which is included in cash and cash equivalents on the accompanying balance sheet. Also, as of December 31, 2017, approximately $3,792,000 was invested in a market neutral mutual fund which is included in marketable securities on the accompanying consolidated balance sheets. Amounts invested in the market neutral mutual fund generated $24,000 of investment income during 2017 that is classified as other income, net on the accompanying consolidated statement of operations.

As of December 31, 2016 approximately $1,002,000 was invested in a United States Treasury money market fund which is included in cash and cash equivalents on the accompanying consolidated balance sheets, and $2,714,000 was invested in a market neutral mutual fund which is included in marketable securities on the accompanying consolidated balance sheets.

These funds are managed by a related entity (the "Fund Manager") which is related through a common director who is also a 10% stockholder, and currently serves as an executive officer of the Fund Manager. The fund transactions in 2017 and 2016 were directed solely at the discretion of the Company’s management

All transactions between us and any of our officers, directors, director nominees, principal stockholders or their immediate family members are to be approved by the Audit Committee, and are to be on terms no less favorable to us than we could obtain from unaffiliated third parties. Such policy and procedures are set forth in a resolution of the Board.

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Director Independence

As required under NYSE American rules, a majority of the members of a listed company's board of directors must qualify as "independent," as affirmatively determined by such board of directors. The Board has determined that Messrs. Foufas, Hunter, Kalha, Salerno, Susanto and Visconti are independent within the meaning of NYSE American rules.

Item 14. Principal Accounting Fees and Services Fees Billed During Fiscal 2017 and 2016

Audit Fees

Aggregate audit fees for the years ended December 31, 2017 and 2016, were $214,988 and $206,750, respectively, and include fees billed by RSM US LLP ("RSM") as the Company's independent registered public accounting firm for the years ended December 31, 2017 and 2016. Audit fees include services relating to auditing the Company's annual financial statements, reviewing the Company's financial statements included in the Company's quarterly reports on Form 10-Q and annual report on Form 10-K.

Audit-Related Fees

RSM rendered audit-related services in connection with the Company’s registration statement on Form S-1 (Registration N0. 333-218901) for the company’s rights offering during the year ended December 31, 2017 and charged fees of $24,150 during 2017. RSM did not render any audit-related services during 2016.

Tax Fees

RSM did not render any tax services during 2017 or 2016.

All Other Fees

RSM did not render any other services during 2017 or 2016.

Pre-Approval Policies and Procedures

The Audit Committee policy and procedures for the pre-approval of audit and non-audit services rendered by our independent registered public accounting firm are reflected in the Audit Committee Charter. The Audit Committee Charter provides that the Audit Committee shall pre-approve all audit and non-audit services provided by the independent registered public accounting firm and shall not engage the independent registered public accounting firm to perform the specific non-audit services proscribed by law or regulation. The Audit Committee may delegate pre-approval authority to a member of the Audit Committee. The decisions of any Audit Committee member to whom pre-approval authority is delegated must be presented to the full Audit Committee at its next scheduled meeting.

If any services other than audit services are rendered by our independent registered public accounting firm, the Audit Committee determines whether such services are compatible with maintaining our independent registered public accounting firm's independence.

All services performed by our independent registered public accounting firm were pre-approved by the Audit Committee.

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PART IV

Item 15. Exhibits and Financial Statement Schedules.

(a) List of documents filed as part of this report:

1. Financial Statements:

	Page
Report of Independent Registered Public Accounting Firm	33
Consolidated Balance Sheets: December 31, 2017 and 2016	34
Consolidated Statements of Operations: Years ended December 31, 2017 and 2016	35
Consolidated Statements of Comprehensive Income: Years ended December 31, 2017 and 2016	36
Consolidated Statements of Stockholders' Equity: Years ended December 31, 2017 and 2016	37
Consolidated Statements of Cash Flows: Years ended December 31, 2017 and 2016	38
Notes to Consolidated Financial Statements	39

2. Financial Statement Schedules:

None.

3. Exhibit Index

The following is a list of exhibits filed as part of this Form 10-K:

Exhibit No.	Description
2.1	Asset Purchase Agreement, dated as of January 31, 2014, made by and between M-tron Industries, Inc. and Trilithic, Inc. (incorporated by reference to Exhibit 2.1 to the Company's Quarterly Report on Form 10-Q filed with the SEC on May 15, 2014).
3.1	Certificate of Incorporation of The LGL Group, Inc. (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K filed with the SEC on August 31, 2007).
3.2	The LGL Group, Inc. By-Laws (incorporated by reference to Exhibit 3.2 to the Company's Current Report on Form 8-K filed with the SEC on August 31, 2007).
3.3	The LGL Group, Inc. Amendment No. 1 to By-Laws (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K filed with the SEC on June 17, 2014).
4.1	Warrant Agreement, dated as of July 30, 2013, by and among The LGL Group, Inc., Computershare Inc. and Computershare Trust Company, N.A. (incorporated by reference to Exhibit 4.1 to the Company's Quarterly Report on Form 10-Q filed with the SEC on August 14, 2013).
4.2	Form of Subscription and Information Agent Agreement by and between The LGL Group, Inc. and Broadridge Corporate Issuer Solutions, Inc. (incorporated by reference to Exhibit 4.2 to Amendment No. 1 to the Company's Registration Statement on Form S-1 (Registration No. 333-218901) filed with the SEC on August 21, 2017).
4.3	Form of Transferable Subscription Rights Certificate (incorporated by reference to Exhibit 4.3 to Amendment No. 1 to the Company's Registration Statement on Form S-1 (Registration No. 333-218901) filed with the SEC on August 21, 2017).

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Exhibit No.	Description
10.1	The LGL Group, Inc. 401(k) Savings Plan (incorporated by reference to Exhibit 10(b) to the Company's Annual Report on Form 10-K filed with the SEC on April 1, 1996).
10.2	The LGL Group, Inc. 2001 Equity Incentive Plan adopted December 10, 2001 (incorporated by reference to Exhibit 4 to the Company's Registration Statement on Form S-8 filed with the SEC on December 29, 2005).
10.3	Form of Restricted Stock Agreement (2001 Equity Incentive Plan) by and between The LGL Group, Inc. and each of its directors (incorporated by reference to Exhibit 10.10 to the Company's Annual Report on Form 10-K filed with the SEC on March 24, 2011).
10.4	Form of Restricted Stock Agreement (2001 Equity Incentive Plan) by and between The LGL Group, Inc. and each of its executive officers (incorporated by reference to Exhibit 10.11 to the Company's Annual Report on Form 10-K filed with the SEC on March 24, 2011).
10.5	The LGL Group, Inc. Amended and Restated 2011 Incentive Plan (incorporated by reference to Annex A of the Company's Definitive Proxy Statement with respect to the Company's 2016 Annual Meeting of Stockholders, filed on April 29, 2016).
10.6	Form of Stock Option Agreement (2011 Incentive Plan) (incorporated by reference to Exhibit 4.2 to the Company's Registration Statement on Form S-8 filed with the SEC on December 30, 2011).
10.7	Form of Restricted Stock Agreement (2011 Incentive Plan) (incorporated by reference to Exhibit 4.3 to the Company's Registration Statement on Form S-8 filed with the SEC on December 30, 2011).
10.8	Form of Indemnification Agreement by and between The LGL Group, Inc. and its executive officers and directors (incorporated by reference to Exhibit 10.9 to the Company's Annual Report on Form 10-K filed with the SEC on March 24, 2011).
10.9	Offer of Employment Letter, effective as of October 1, 2013, by and between The LGL Group, Inc. and Michael J. Ferrantino (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed with the SEC on October 7, 2013).
10.10	Agreement and Release, dated May 27, 2014, by and between Gregory P. Anderson and The LGL Group, Inc. (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed with the SEC on May 28, 2014).
10.11	Agreement and Release, dated May 27, 2014, by and between James L. Williams and The LGL Group, Inc. (incorporated by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K filed with the SEC on May 28, 2014).
10.12	Registration Rights Agreement, dated as of September 19, 2013, by and between the Company and Venator Merchant Fund L.P. (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed with the SEC on September 19, 2013).
10.13	Loan Agreement, dated as of September 30, 2014, by and between M-tron Industries, Inc. and City National Bank of Florida (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed with the SEC on October 2, 2014).
10.14	Revolving Promissory Note, dated as of September 30, 2014, by and between M-tron Industries, Inc. and City National Bank of Florida (incorporated by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K filed with the SEC on October 2, 2014).
10.15	Cash Collateral Agreement, dated as of September 30, 2014, by and between M-tron Industries, Inc. and City National Bank of Florida (incorporated by reference to Exhibit 10.3 to the Company's Current Report on Form 8-K filed with the SEC on October 2, 2014).
10.16	Independent Contractor Agreement between The LGL Group, Inc. and James W. Tivy (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed with the SEC on February 6, 2018).

30

Exhibit No.	Description
21.1	Subsidiaries of The LGL Group, Inc.*
23.1	Consent of Independent Registered Public Accounting Firm – RSM US LLP.*
31.1	Certification of Principal Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.*
31.2	Certification of Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.*
32.1	Certification of Principal Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.**
32.2	Certification of Principal Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.**
101.INS	XBRL Instance Document*
101.SCH	XBRL Taxonomy Extension Schema Document*
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document*
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document*
101.LAB	XBRL Taxonomy Extension Label Linkbase Document*
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document*

* Filed herewith

**Furnished herewith. In accordance with Item 601(b)(32) of Regulation S-K, this Exhibit is not deemed "filed" for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section. Such certifications will not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, except to the extent that the registrant specifically incorporates it by reference.

The exhibits listed above have been filed separately with the SEC in conjunction with this Annual Report on Form 10-K or have been incorporated by reference into this Annual Report on Form 10-K. Upon request, the Company will furnish to each of its stockholders a copy of any such exhibit. Requests should be addressed to the Corporate Secretary, The LGL Group, Inc., 2525 Shader Road, Orlando, Florida, 32804.

Item 16. Form 10-K Summary.

None.

31

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	THE LGL GROUP, INC.
March 21, 2018	By:	/s/ Michael J. Ferrantino, Sr.
		Michael J. Ferrantino, Sr.
		President and Chief Executive Officer (Principal Executive Officer)

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated:

SIGNATURE	CAPACITY	DATE
/s/ Michael J. Ferrantino, Sr.	President and Chief Executive Officer	March 21, 2018
MICHAEL J. FERRANTINO, SR.	(Principal Executive Officer)
/s/ James W. Tivy	Chief Financial Officer	March 21, 2018
JAMES W. TIVY	(Principal Financial Officer)
/s/Marc J. Gabelli	Director	March 21, 2018
MARC J. GABELLI
/s/ Timothy Foufas	Director	March 21, 2018
TIMOTHY FOUFAS
/s/ Donald H. Hunter	Director	March 21, 2018
DONALD H. HUNTER
/s/ Manjit Kalha	Director	March 21, 2018
MANJIT KALHA
/s/ Frederic V. Salerno	Director	March 21, 2018
FREDERIC V. SALERNO
/s/ Hendi Susanto	Director	March 21, 2018
HENDI SUSANTO
/s/ Antonio Visconti	Director	March 21, 2018
ANTONIO VISCONTI

32

Report of Independent Registered Public Accounting Firm

To the Stockholders and the Board of Directors of The LGL Group, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of The LGL Group, Inc. and its subsidiaries (the Company) as of December 31, 2017 and 2016, and the related consolidated statements of operations, comprehensive income, stockholders' equity, and cash flows for the years then ended, and the related notes to the consolidated financial statements (collectively, the financial statements). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2017 and 2016, and the results of their operations and their cash flows for the years then ended, in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

/s/ RSM US LLP

We have served as the Company’s auditor since 2011.

Orlando, Florida

March 22, 2018

33

THE LGL GROUP, INC.

CONSOLIDATED BALANCE SHEETS

(Dollars in Thousands, Except per Share Amounts)

	December 31,
	2017			2016
ASSETS
Current Assets:
Cash and cash equivalents	$	13,250		$	2,778
Marketable securities		3,803			2,770
Accounts receivable, net of allowances of $35 and $31, respectively		3,393			3,504
Inventories, net		3,875			3,638
Prepaid expenses and other current assets		229			200
Total Current Assets		24,550			12,890
Property, Plant and Equipment
Land		536			633
Buildings and improvements		3,973			3,966
Machinery and equipment		16,974			16,849
Gross property, plant and equipment		21,483			21,448
Less:  accumulated depreciation		(19,304	)		(18,737	)
Net property, plant and equipment		2,179			2,711
Intangible assets, net		552			628
Deferred income taxes, net		173			214
Other assets		101			203
Total Assets	$	27,555		$	16,646
LIABILITIES AND STOCKHOLDERS' EQUITY
Current Liabilities:
Accounts payable	$	1,477		$	1,525
Accrued compensation and commissions expense		872			942
Other accrued expenses		278			288
Total Current Liabilities		2,627			2,755
Commitments and Contingencies (Note K)
Stockholders' Equity
Common stock, $0.01 par value - 10,000,000 shares authorized;    4,774,477 shares issued and 4,692,893 shares outstanding at    December 31, 2017, and 2,757,050 shares issued and 2,675,466 shares    outstanding at December 31, 2016		47			27
Additional paid-in capital		40,035			29,173
Accumulated deficit		(14,609	)		(14,726	)
Treasury stock, 81,584 shares held in treasury at cost at    December 31, 2017 and 2016		(580	)		(580	)
Accumulated other comprehensive income (loss)		35			(3	)
Total Stockholders' Equity		24,928			13,891
Total Liabilities and Stockholders' Equity	$	27,555		$	16,646

See Accompanying Notes to Consolidated Financial Statements.

34

THE LGL GROUP, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

(Dollars in Thousands, Except Per Share Amounts)

	Years Ended December 31,
	2017			2016
REVENUES	$	22,402		$	20,891
Costs and expenses:
Manufacturing cost of sales		14,661			13,858
Engineering, selling and administrative		7,465			7,194
OPERATING INCOME (LOSS)		276			(161	)
Other (Expense) Income:
Interest expense, net		(11	)		(22	)
Other (expense) income, net		(46	)		166
Total Other (Expense) Income, Net		(57	)		144
INCOME (LOSS) BEFORE INCOME TAXES		219			(17	)
Income tax (provision) benefit		(102	)		165
NET INCOME	$	117		$	148
Basic per share information:
Weighted average number of shares used in basic EPS calculation		2,929,641			2,665,043
Net income per share	$	0.04		$	0.06
Diluted per share information:
Weighted average number of shares used in diluted EPS calculation		3,035,104			2,665,730
Net income per share	$	0.04		$	0.06

See Accompanying Notes to Consolidated Financial Statements.

35

THE LGL GROUP, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Dollars in Thousands)

	Years Ended December 31,
	2017		2016
NET INCOME	$	117	$	148
Other comprehensive income (loss):
Unrealized gain (loss) on available-for-sale securities, net		38		(43	)
Total other comprehensive income (loss)		38		(43	)
COMPREHENSIVE INCOME	$	155	$	105

See Accompanying Notes to Consolidated Financial Statements.

36

THE LGL GROUP, INC.

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

(Dollars in Thousands)

	Shares of Common Stock Outstanding			Common Stock		Additional Paid-In Capital		Accumulated Deficit			Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Total
Balance at December 31, 2015		2,665,434		$	27	$	29,106	$	(14,874	)	$	(572	)	$	40		$	13,727
Net income									148									148
Other comprehensive loss															(43	)		(43	)
Stock-based compensation		11,952			—		67											67
Purchase of treasury stock		(1,920	)									(8	)					(8	)
Balance at December 31, 2016		2,675,466			27		29,173		(14,726	)		(580	)		(3	)		13,891
Net income									117									117
Other comprehensive income															38			38
Stock-based compensation		10,830			—		88											88
Issuance of shares, net of issuance costs		2,006,598			20		10,774											10,794
Balance at December 31, 2017		4,692,894		$	47	$	40,035	$	(14,609	)	$	(580	)	$	35		$	24,928

See Accompanying Notes to Consolidated Financial Statements.

37

THE LGL GROUP, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Dollars in Thousands)

	Years Ended December 31,
	2017			2016
OPERATING ACTIVITIES
Net income	$	117		$	148
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation		567			704
Amortization of finite-lived intangible assets		75			68
Gain on disposal of assets		—			(110	)
Impairment of note receivable		102			—
Stock-based compensation		88			67
Bargain purchase gain		—			(4	)
Deferred income tax expense (benefit)		41			(214	)
Gain on sale of marketable securities		(21	)		—
Dividend from marketable securities		(6	)		(62	)
Changes in operating assets and liabilities:
Decrease (increase) in accounts receivable, net		111			(890	)
Increase in inventories, net		(237	)		(62	)
Increase in prepaid expenses and other assets		(28	)		(1	)
(Decrease) increase in accounts payable, accrued compensation    and commissions expense and other accrued liabilities		(128	)		634
Net cash provided by operating activities		681			278
INVESTING ACTIVITIES
Purchase of marketable securities		(1,002	)		(2,695	)
Capital expenditures		(131	)		(172	)
Acquisition of a business		—			(295	)
Proceeds from sale of land		96			—
Other		34			117
Net cash used in investing activities		(1,003	)		(3,045	)
FINANCING ACTIVITIES
Proceeds from issuance of common stock, net of issuance costs		10,794			—
Purchase of treasury stock		—			(8	)
Net cash provided by (used in) financing activities		10,794			(8	)
Increase (decrease) in cash and cash equivalents		10,472			(2,775	)
Cash and cash equivalents at beginning of year		2,778			5,553
Cash and cash equivalents at end of year	$	13,250		$	2,778
Supplemental Disclosure:
Cash paid for interest	$	23		$	17
Cash paid for income taxes	$	41		$	52
Supplemental Schedule of Noncash Investing Activities:
Acquisition of a business:
Fair value of equipment acquired	$	—		$	85
Fair value of intangible assets acquired		—			214
Current assets acquired		—			45
Current liabilities assumed		—			(45	)
Bargain purchase gain		—			(4	)
Cash consideration paid	$	—		$	295

See Accompanying Notes to Consolidated Financial Statements.

38

THE LGL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

A.Accounting and Reporting Policies

Organization

The LGL Group, Inc. (the "Company"), incorporated in 1928 under the laws of the State of Indiana and reincorporated under the laws of the State of Delaware in 2007, is a holding company with subsidiaries engaged in the design, manufacturing and marketing of highly-engineered, high reliability frequency and spectrum control products used to control the frequency or timing of signals in electronic circuits and in the design of high performance Frequency and Time Reference Standards that form the basis for timing and synchronization in various applications.

As of December 31, 2017, the subsidiaries of the Company are as follows:

	Owned By The LGL Group, Inc.
M-tron Industries, Inc.		100.0	%
Piezo Technology, Inc.		100.0	%
Piezo Technology India Private Ltd.		99.0	%
M-tron Asia, LLC		100.0	%
M-tron Industries, Ltd.		100.0	%
GC Opportunities Ltd.		100.0	%
M-tron Services, Ltd.		100.0	%
Precise Time and Frequency, LLC		100.0	%
Lynch Systems, Inc.		100.0	%

The Company operates through its two principal subsidiaries, M-tron Industries, Inc. ("MtronPTI"), which includes the operations of Piezo Technology, Inc. ("PTI") and M-tron Asia, LLC ("Mtron"), and Precise Time and Frequency, LLC ("PTF"), a newly formed subsidiary in 2016, to hold the assets of Precise Time and Frequency, Inc., as discussed in Note B below. The Company has operations in Orlando, Florida, Yankton, South Dakota, Wakefield, Massachusetts and Noida, India. MtronPTI also has sales offices in Sacramento, California, Austin, Texas and Hong Kong.

Principles of Consolidation

The consolidated financial statements include the accounts of the Company and entities for which it has control. Material intercompany transactions and accounts have been eliminated in consolidation.

Uses of Estimates

The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.

Cash and Cash Equivalents

Cash and cash equivalents consist of highly-liquid investments with a maturity of less than three months when purchased.

39

Marketable Securities

Marketable debt and equity securities are categorized as available for-sale-securities and are reported at fair value. Unrealized gains and losses related to changes in the fair value of available-for-sale securities are recognized in accumulated other comprehensive income (loss) within stockholders' equity.

Accounts Receivable

Accounts receivable, on a consolidated basis, consists principally of amounts due from both domestic and foreign customers. Credit is extended based on an evaluation of the customer's financial condition and collateral is not required. In relation to export sales, the Company requires letters of credit supporting a significant portion of the sales price prior to production to limit exposure to credit risk. Certain credit sales are made to industries that are subject to cyclical economic changes. 

The Company maintains allowances for doubtful accounts for estimated losses resulting from the inability of its customers to make required payments. These allowances are maintained at a level that management believes is sufficient to cover potential credit losses. Estimates are based on historical collection experience, current trends, credit policy and the relationship between accounts receivable and revenues. In determining these estimates, the Company examines historical write-offs of its receivables and reviews each customer's account to identify any specific customer collection issues. If the financial condition of its customers were to deteriorate, resulting in an impairment of their ability to make payment, additional allowances might be required. 

Inventories

Inventories are valued at the lower of cost or net realizable value using the FIFO (first-in, first-out) method.

The Company maintains a reserve for inventory based on estimated losses that result from inventory that becomes obsolete or for which the Company has excess inventory levels as of period end. In determining these estimates, the Company performs an analysis on current demand and usage for each inventory item over historical time periods. Based on that analysis, the Company reserves a percentage of the inventory amount within each time period based on historical demand and usage patterns of specific items in inventory.

Property, Plant and Equipment, Net

Property, plant and equipment are recorded at cost less accumulated depreciation and include expenditures for major improvements. Maintenance and repairs are charged to operations as incurred. Depreciation is computed for financial reporting purposes using the straight-line method over the estimated useful lives of the assets, which range from 5 years to 35 years for buildings and improvements, and from 3 to 10 years for other fixed assets. Property, plant and equipment are periodically reviewed for indicators of impairment. If any such indicators were noted, the Company would assess the appropriateness of the assets' carrying value and record any impairment at that time.

Depreciation expense from operations was approximately $567,000 for 2017 and $704,000 for 2016.

Warranties

The Company offers a standard one-year warranty. The Company tests its products prior to shipment in order to ensure that they meet each customer's requirements based upon specifications received from each customer at the time its order is received and accepted. The Company's customers may request to return products for various reasons, including, but not limited to, the customers' belief that the products are not performing to specification. The Company's return policy states that it will accept product returns only with prior authorization and if the product does not meet customer specifications, in which case the product would be replaced or repaired. To accommodate the Company's customers, each request for return is reviewed, and if and when it is approved, a return materials authorization ("RMA") is issued to the customer.

40

Each month, the Company records a specific warranty reserve for approved RMAs covering products that have not yet been returned. The Company does not maintain a general warranty reserve because, historically, valid warranty returns resulting from a product not meeting specifications or being non-functional have been de minimis. As of December 31, 2017 and 2016, accrued warranty expense was $10,000 and $80,000, respectively, and is included within other accrued expenses in the accompanying consolidated balance sheets.

Intangible Assets

Intangible assets are recorded at cost less accumulated amortization. Amortization is computed for financial reporting purposes using the straight-line method over the estimated useful lives of the assets, which range up to 10 years. The intangible assets consist of intellectual property and goodwill. The net carrying value of the amortizable intangible assets was $512,000 and $588,000 as of December 31, 2017 and 2016, respectively. Goodwill, which is not amortizable, was $40,000 as of December 31, 2017 and 2016.

The estimated aggregate amortization expense for intangible assets, excluding goodwill, for each of the remaining years of the estimated useful life is as follows (in thousands):

2018	$	75
2019		75
2020		75
2021		75
2022		75
Thereafter		137
Total	$	512

Revenue Recognition

The Company recognizes revenue from the sale of its products in accordance with the criteria in Accounting Standards Codification ("ASC") 605, Revenue Recognition, which are:

• persuasive evidence that an arrangement exists;

• delivery has occurred;

• the seller's price to the buyer is fixed and determinable; and

• collectability is reasonably assured.

The Company meets these conditions upon shipment because title and risk of loss passes to the customer at that time. However, the Company offers a limited right of return and/or authorized price protection provisions in its agreements with certain electronic component distributors who resell the Company's products to original equipment manufacturers or electronic manufacturing services companies. As a result, the Company estimates and records a reserve for future returns and other charges against revenue at the time of shipment consistent with the terms of sale. The reserve is estimated based on historical experience with each respective distributor.

The Company recognizes revenue related to transactions with a right of return and/or authorized price protection provisions when the following conditions are met:

• seller's price to the buyer is fixed or determinable at the date of sale;

• buyer has paid the seller, or the buyer is obligated to pay the seller and the obligation is not contingent on resale of the product;

• buyer's obligation to the seller would not be changed in the event of theft or physical destruction or damage of the product;

• buyer acquiring the product for resale has economic substance apart from that provided by the seller;

• seller does not have obligations for future performance; and

• the amount of future returns can be reasonably estimated.

41

Shipping Costs

Amounts billed to customers related to shipping and handling are classified as revenue, and the Company's shipping and handling costs are included in manufacturing cost of sales.

Research and Development Costs

Research and development costs are charged to operations as incurred. Such costs were approximately $1,827,000 and $1,906,000 in 2017 and 2016, respectively, and are included within engineering, selling and administrative expenses.

Advertising Expense

Advertising costs are charged to operations as incurred. Such costs were approximately $18,000 in 2017, compared with $50,000 in 2016, and are included within engineering, selling and administrative expenses.

Stock-Based Compensation

The Company measures the cost of employee services in exchange for an award of equity instruments based on the grant-date fair value of the award and recognizes the cost over the requisite service period, typically the vesting period.

The Company estimates the fair value of stock options on the grant date using the Black-Scholes-Merton option-pricing model. The Black-Scholes-Merton option-pricing model requires subjective assumptions, including future stock price volatility and expected time to exercise, which greatly affect the calculated values. There is no expected dividend rate. Historical Company information was the basis for the expected volatility assumption as the Company believes that the historical volatility over the life of the option is indicative of expected volatility in the future. The risk-free interest rate is based on the U.S. Treasury zero-coupon rates with a remaining term equal to the expected term of the option. The Company records any forfeitures in the period that the shares are forfeited.

Restricted stock awards are made at a value equal to the market price of the Company's common stock on the date of the grant.

Earnings Per Share

The Company computes earnings per share in accordance with ASC 260, Earnings Per Share. Basic earnings per share is computed by dividing net earnings by the weighted average number of common shares outstanding during the period. Diluted earnings per share adjusts basic earnings per share for the effects of stock options and other potentially dilutive financial instruments, only in the periods in which the effects are dilutive.

For the years ended December 31, 2017 and 2016, there were options to purchase 42,676 shares and 166,996 shares, respectively, of common stock and warrants to purchase 519,241 shares of common stock that were excluded from the diluted earnings per share computation because the impact of the assumed exercise of such stock options or warrants would have been anti-dilutive.

	Years Ended December 31,
	2017		2016
Weighted average shares outstanding - basic		2,929,641		2,665,043
Effect of diluted securities		105,463		687
Weighted average shares outstanding - diluted		3,035,104		2,665,730

Income Taxes

The Company's deferred income tax assets represent (a) temporary differences between the financial statement carrying amount and the tax basis of existing assets and liabilities that will result in deductible amounts in future years, and (b) the tax effects of net operating loss carry-forwards. In assessing the realizability of deferred tax assets in accordance with the provisions of ASC 740, Income Taxes, the Company considers whether it is more likely than not that some portion or all of the deferred tax assets will or will not be realized. The ultimate realization of deferred tax

42

assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become realizable.

The Company has determined the results of future operations of one of its foreign subsidiaries will generate enough taxable income that it is more likely than not that deferred tax assets of $173,000 generated from net operating losses (“NOL’s”) in a foreign subsidiary, can be utilized in the foreseeable future. The Company has also determined that a full valuation against the remaining net deferred tax assets is required and has recorded a valuation allowance to reduce deferred tax assets to the amount that is more likely than not to be realized. Should a change in circumstances lead to a change in judgment about the ability to realize deferred tax assets in future years, the Company will adjust related valuation allowances in the period that the change in circumstances occurs, along with a corresponding increase or charge to income. The Company recognizes interest and/or penalties, if any, related to income tax matters in income tax expense. 

Concentration Risk

In 2017, the Company's largest customer, an electronics contract manufacturing company in the aerospace and defense markets, accounted for $3,744,000, or 16.7% of the Company's total revenues, compared to $3,275,000, or 15.7%, in 2016.

A significant portion of the Company's accounts receivable is concentrated with a relatively small number of customers. As of December 31, 2017, four of the Company's largest customers accounted for approximately $1,100,000, or 32.0% of accounts receivable. As of December 31, 2016, four of the Company's largest customers accounted for approximately $1,242,000, or 35.1% of accounts receivable. The Company carefully evaluates the creditworthiness of its customers in deciding to extend credit, and utilizes letters of credit to further limit credit risk for export sales. As a result of these policies, the Company has experienced very low historical bad debt expense and believes the related risk to be minimal.

At various times throughout the year and at December 31, 2017, some deposits held at financial institutions were in excess of federally insured limits. The Company has not experienced any losses related to these balances and believes the related risk to be minimal.

Segment Information

The Company reports segment information in accordance with ASC 280, Segment Information ("ASC 280"). ASC 280 requires companies to report financial and descriptive information for each identified operating segment based on management's internal organizational decision-making structure. Management has identified the Company’s two segments as electronic components and electronic instruments.

Impairments of Long-Lived Assets

Long-lived assets, including intangible assets subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. Long-lived assets are grouped with other assets to the lowest level to which identifiable cash flows are largely independent of the cash flows of other groups of assets and liabilities. Management assesses the recoverability of the carrying cost of the assets based on a review of projected undiscounted cash flows. If an asset is held for sale, management reviews its estimated fair value less cost to sell. Fair value is determined using pertinent market information, including appraisals or broker's estimates, and/or projected discounted cash flows. In the event an impairment loss is identified, it is recognized based on the amount by which the carrying value exceeds the estimated fair value of the long-lived asset.

Financial Instruments

Cash and cash equivalents, trade accounts receivable, short-term borrowings, trade accounts payable, and accrued expenses are carried at cost, which approximates fair value due to the short-term maturity of these instruments.

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Foreign Currency Translation

The assets and liabilities of international operations are re-measured at the exchange rates in effect at the balance sheet date for monetary assets and liabilities and at historical rates for non-monetary assets and liabilities, with the related re-measurement gains or losses reported within the consolidated statement of operations. The results of international operations are re-measured at the monthly average exchange rates. The Company's foreign subsidiaries and respective operations' functional currency is the U.S. dollar. The Company has determined this based upon the majority of transactions with customers as well as inter-company transactions and parental support being based in U.S. dollars. The Company has recognized a re-measurement gain of $22,000 and a re-measurement loss of $(2,000), in 2017 and 2016, respectively, which is included within other income, net in the consolidated statements of operations.

Recently Issued Accounting Pronouncements

In January 2017, the Financial Accounting Standards Board (the "FASB") issued ASU 2017-04, "Intangibles – Goodwill and Other – (Topic 350): Simplifying the Test for Goodwill Impairment". ASU 2017-04 simplifies the accounting for goodwill impairment by removing the requirement to calculate the implied fair value. Instead, it requires that an entity records an impairment charge based on the excess of a reporting unit's carrying amount over its fair value. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. ASU 2016-15 is effective for fiscal years, and for interim periods within those years, beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company implemented this ASU 2017-04 during the fourth quarter and effective for its fiscal year ended December 31, 2017, on a prospective basis.

In August 2016, the FASB issued ASU 2016-15, "Statement of Cash Flows – (Topic 230): Classification of Certain Cash Receipts and Cash Payments". ASU 2016-15 addresses eight specific cash flow issues with the objective of reducing the existing diversity in practice. ASU 2016-15 is effective for fiscal years, and for interim periods within those years, beginning after December 15, 2017. Early application is permitted. The Company implemented this ASU 2016-15 effective for its fiscal year ended December 31, 2017, using the retrospective transition method to each period presented. No changes were required as none of the eight specific cash flow issues addressed by ASU 2016-15 were applicable to the Company for the periods presented.

In March 2016, the FASB issued ASU 2016-09, "Compensation – Stock Compensation (Topic 718): Improvements to Employee Share–Based Payment Accounting". ASU 2016-09 simplifies the accounting for share–based payment award transactions including: income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. ASU 2016-09 is effective for fiscal years beginning after December 15, 2016. The Company implemented the requirements of ASU 2016-09 effective for its fiscal year ended December 31, 2017, with no impact to the financial statements, as there were no prior transactions to which the modified retrospective transition method by means of a cumulative-effect adjustment to equity would have applied.

In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)". The objective of this update is to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those annual periods and is to be applied utilizing a modified retrospective approach. The Company does not expect the adoption of ASU 2016-02 to have a material impact on its consolidated financial statements because there are no material operating leases.

In January 2016, the FASB issued ASU 2016-01, "Financial Instruments – Recognition and Measurement of Financial Assets and Financial Liabilities (Topic 825)". ASU 2016-01 revises the classification and measurement of investments in certain equity investments and the presentation of certain fair value changes for certain financial liabilities measured at fair value. ASU 2016-01 requires the change in fair value of many equity investments to be recognized in net income. ASU 2016-01 is effective for interim and annual periods beginning after December 15, 2017, with early adoption permitted. Adopting ASU 2016-01 will result in a cumulative effect adjustment to the Company's retained earnings as of the beginning of the year of adoption. The Company is currently evaluating the potential effects of adopting the provisions of ASU 2016-01.

In November 2015, the FASB issued ASU 2015-17 "Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes", which simplifies the presentation of deferred income taxes. Under the new accounting standard,

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deferred tax assets and liabilities are required to be classified as noncurrent, eliminating the prior requirement to separate deferred tax assets and liabilities into current and noncurrent. The new guidance is effective for financial statements issued for annual periods beginning after December 15, 2016, and interim periods within those annual periods, with early adoption permitted. The standard may be adopted prospectively or retrospectively to all periods presented. The Company adopted this guidance effective for its fiscal year ended December 31, 2017, on a retrospective basis, with only a limited effect on its balance sheet classification and disclosures.

In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330): “Simplifying the Measurement of Inventory”, which changes the measurement principle for inventory from the lower of cost or market to the lower of cost and net realizable value. ASU 2015-11 defines net realizable value as estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. The new guidance must be applied on a prospective basis. The Company adopted ASU 2015-11 effective January 1, 2017. The adoption of this guidance did not have a material impact on our consolidated financial statements.

In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers", also known as the "New Revenue Standard". This update is the result of a collaborative effort by the FASB and the International Accounting Standards Board to simplify revenue recognition guidance, remove inconsistencies in the application of revenue recognition, and to improve comparability of revenue recognition practices across entities, industries, jurisdictions, and capital markets. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to receive for those goods or services. The New Revenue Standard is applied through the following five-step process:

1. Identify the contract(s) with a customer.

2. Identify the performance obligation in the contract.

3. Determine the transaction price.

4. Allocate the transaction price to the performance obligations in the contract.

5. Recognize revenue when (or as) the entity satisfies a performance obligation.

For a public entity, this update is effective for annual and interim reporting periods beginning after December 15, 2017 with early adoption permitted. This standard can be applied on either a retrospective or modified retrospective approach. Since May, 2014, a number of ASU's have been issued which further refine the original guidance issued under ASU 2014-09 and are effective in conjunction with this original standard.

The Company established an implementation approach to assess the impact of the new revenue guidance on its operations, consolidated financial statements and related disclosures. This assessment included (1) performing contract analyses for each revenue stream identified, (2) assessing the noted differences in recognition and measurement that may result from adopting this new standard, (3) performing detailed analyses of contracts with large customers, and (4) performing transaction level testing for consistency with contract provisions that affect revenue recognition. The Company evaluated the potential impacts of the new standard on its existing revenue recognition policies and procedures during the fiscal year ended December 31, 2017, and determined that the Company’s performance obligations are met at shipping point, with no other material obligations. The Company further determined that returns are immaterial, its warranty terms are consistent, and consignment inventory is accounted for appropriately. The Company also determined that there were no incremental disaggregated revenue disclosures required in our consolidated financial statements. Based on the results of the evaluation, adoption of the new standard will not have a material impact on our consolidated financial statements. The New Revenue Standard became effective for us on January 1, 2018 and was applied on a retrospective basis, with no cumulative effect of adoption to any of the financial statement line items.

No other new accounting pronouncements issued or effective during the fiscal year have had or are expected to have a material impact on the Company's consolidated financial statements.

B.Business Combination

On September 2, 2016, PTF acquired certain assets and assumed certain liabilities of Precise Time and Frequency, Inc. ("PTF Inc.") for cash consideration of $295,000 (the "PTF Acquisition"). The PTF Acquisition was accounted for under the acquisition method of accounting for business combinations pursuant to the provisions of ASC 805, Business Combinations. The acquisition method of accounting requires, among other things, that the assets acquired

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and liabilities assumed in a business combination be measured at their fair values as of the closing date of the acquisition.

The acquired assets include intellectual property and equipment that will support the Company's strategy to be a broader based supplier of highly engineered products for the generation, synchronization and control of timing and frequency. The intangible assets acquired are being amortized over a weighted average period of ten years. The Company believes this product line will complement the complete line of frequency control products that MtronPTI currently provides.

The following is a summary of the preliminary purchase price allocation to the estimated fair values of assets acquired and liabilities assumed in the PTF Acquisition (in thousands):

Purchase consideration	$	295
Net assets acquired:
Current assets		45
Fixed assets		85
Intangible assets		214
Current liabilities		(45	)
Net assets acquired	$	299
Bargain purchase gain	$	(4	)

The assets acquired and liabilites assumed by PTF were done through the distressed sale of PTF Inc. and resulted in a bargain purchase gain which is recorded in other income (expense), net in the accompanying consolidated statement of operations for the year ended December 31, 2016.

Management estimated the fair value of net assets acquired using valuation techniques including income, cost and market approaches. In estimating the fair value of acquired assets and assumed liabilities, the fair value estimates are based on, but not limited to, expected future revenues and cash flows, expected future growth rates and estimated discount rates.

The following table sets forth certain unaudited pro forma information for the year ended December 31, 2016  assuming that the PTF Acquisition occurred prior to January 1, 2016 (in thousands, except per share data):

	Year Ended December 31, 2016
	Historical		Pro Forma Adjustments		Pro Forma
Revenue	$	21,129	$	—	$	21,129
Net income	$	136	$	25	$	161
Basic net income per share	$	0.05	$	0.01	$	0.06
Diluted net income per share	$	0.05	$	0.01	$	0.06

The pro forma adjustments include amortization expense related to the acquired intangible assets and an adjustment to remove acquisition related expenses incurred in 2016 that for pro forma purposes should be reflected in a prior period.

The net sales included in the Company's consolidated statement of operations which were generated by the PTF Acquisition from the acquisition closing date of September 2, 2016 through December 31, 2016 was $200,000. The losses included in the Company's consolidated statement of operations derived from the PTF Acquisition's business from the acquisition closing date to December 31, 2016 were ($57,000).

Acquisition-related costs are those costs the acquirer incurs to effect a business combination, including advisory, legal, accounting, valuation, and other professional or consulting fees. The Company incurred a total of approximately $38,000 of acquisition-related costs which were charged to engineering, general and administrative expenses during the year ended December 31, 2016.

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C.Inventories

The Company reduces the value of its inventories to net realizable value when the net realizable value is believed to be less than the cost of the item. The inventory reserve for obsolescence as of December 31, 2017 and 2016 was $1,213,000 and $2,773,000, respectively. During the year ended December 31, 2017, the Company wrote off approximately $1,254,000 in previously reserved obsolete inventory with a zero net realizable value. As a result of being written off, this inventory is no longer included in the Company’s inventory balance or its reserve for obsolescence.

	December 31,
	2017		2016
	(in thousands)
Raw materials	$	1,526	$	1,408
Work in process		1,337		1,306
Finished goods		1,012		924
Total Inventories, net	$	3,875	$	3,638

D.Related Party Transactions

As of December 31, 2017 approximately $11,050,000 was invested in a United States Treasury money market fund which is included in cash and cash equivalents on the accompanying balance sheet. Also, as of December 31, 2017, approximately $3,792,000 was invested in a market neutral mutual fund which is included in marketable securities on the accompanying consolidated balance sheets. Amounts invested in the market neutral mutual fund generated $24,000 of investment income during 2017 that is classified as other income, net on the accompanying consolidated statement of operations.

As of December 31, 2016 approximately $1,002,000 was invested in a United States Treasury money market fund which is included in cash and cash equivalents on the accompanying consolidated balance sheets, and $2,714,000 was invested in a market neutral mutual fund which is included in marketable securities on the accompanying consolidated balance sheets.

These funds are managed by a related entity (the "Fund Manager") which is related through a common directorwho is also a 10% stockholder, and currently serves as an executive officer of the Fund Manager. The fund transactions in 2017 and 2016 were directed solely at the discretion of the Company’s management.

E.Stock-Based Compensation

On August 4, 2011, the Company's stockholders approved the 2011 Incentive Plan. 500,000 shares of common stock were authorized for issuance under the 2011 Incentive Plan. On June 16, 2016, the Company's stockholders approved the Amended and Restated 2011 Incentive Plan which increased the shares of common stock authorized for issuance to 750,000 shares of common stock. The Company believes that such awards better align the interests of its employees with those of its shareholders. Option awards are generally granted with an exercise price either at or 10% above the market price of the Company's stock at the date of grant; those option awards generally have 5-year contractual terms and generally vest over three years. Restricted stock awards are granted at a value equal to the market price of the Company's common stock on the date of grant.

The following table summarizes the inputs to the option valuation model for the options granted during the years ended December 31, 2017 and 2016:

	2017	2016
Expected volatility	27%	31%
Dividend rate	0%	0%
Expected term (in years)	3.55	3.25 – 3.55
Risk-free rate	2.01%	0.92% – 1.49%

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The Company bases expected volatility on the weighted average historical stock volatility of the Company's common stock. There is no dividend rate, as dividends are not expected to be paid. The expected term utilizes historical data to estimate the period of time that the options are expected to remain unexercised. The Company bases risk-free rates on the U.S. Treasury zero-coupon rates with a remaining term equal to the expected term of the option. The Company records any forfeitures in the period that the shares are forfeited.

The following table summarizes information about stock options outstanding and exercisable at December 31, 2017:

	Number of Shares Outstanding			Weighted Average Exercise Price		Weighted Average Grant Date Fair Value		Weighted Average Remaining Term (in years)		Aggregate Intrinsic Value (in thousands)
Option Balances at December 31, 2016		176,344		$	4.90	$	1.31	3.4		$	78
Options Granted		9,541			6.09		1.05
Options Exercised		—			—		—
Options Forfeited		(4,500	)		4.01		0.96
Options Expired		—			—		—
Option Balances at December 31, 2017		181,385		$	4.98	$	1.30		2.4	$	158
Options Exercisable at December 31, 2017		128,692		$	5.04	$	1.41		1.9	$	113

The weighted-average grant-date fair value of options granted during the years 2017 and 2016 was $1.05 and $1.04, respectively. As of December 31, 2017, there was approximately $45,000 of total unrecognized compensation expense related to unvested share-based compensation arrangements.

During the year ended December 31, 2017, the Company issued 10,830 shares with a weighted average grant date fair value of $5.54 per share. These shares were fully vested on the date of issuance. As of December 31, 2017, there were no unvested restricted shares granted under the Amended and Restated 2011 Incentive Plan.

The Amended and Restated 2011 Incentive Plan had 416,852 shares remaining available for future issuance at December 31, 2017.

F. Income Taxes

On December 22, 2017, the U.S. enacted the Tax Cuts and Jobs Act (the “2017 Act”). The 2017 Act significantly changes U.S. corporate income tax law. Among other changes effective in 2017, the 2017 Act requires companies to pay a one-time tax on certain unrepatriated earnings of foreign subsidiaries. The Company calculated the impact of the 2017 Act in its income tax provision for the year ended December 31, 2017 in accordance with its understanding of the 2017 Act and guidance available as of the date of this filing.

The Company recognized tax expense of $1,662,000 related to the remeasurement of certain deferred tax assets and liabilities from 34% to 21%. The most material deferred taxes to be remeasured related to inventory reserves, and net operating losses (after reduction for the one-time transition tax) and property, plant and equipment. This tax expense from remeasurement of deferred tax assets had no impact on our effective tax rate as it was completely offset by the Company’s valuation allowance.

The Company also recognized provisional tax expense of $565,000 related to the one-time transition tax on the deemed repatriation of foreign earnings. The calculation of the one-time tax is quite complex, requiring determinations of liquid asset balances over three years, determination of foreign earnings and profits (“E&P," a U.S. tax measure) at multiple dates, and multiple other computations. Our provisional calculated tax expense was impacted

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by cash and other liquid assets taxable at a 15.5% rate and the balance of non-cash E&P taxable at 8%. The one-time transition tax had no impact on our 2017 effective tax rate as it was completely offset by the Company’s valuation allowance. Additional work is necessary to perform a more detailed analysis of historical foreign earnings. Upon gathering all necessary data, interpreting any additional guidance from tax authorities, and completing the analysis, our provisional amount will be adjusted in the measurement period allowable, but in no circumstances will the measurement period extend beyond one year from the enactment date.

Income tax provision (benefit) for the years ended December 31, 2017 and 2016 is as follows:

	2017			2016
	(in thousands)
Current:
Federal	$	—		$	—
State and local		18			8
Foreign		43			41
Total Current		61			49
Deferred:
Federal		1,637			(211	)
State and local		42			267
Foreign		41			55
Total before change in valuation allowance		1,720			111
Change in Valuation Allowance		(1,679	)		(325	)
Net Deferred		41			(214	)
Income tax provision (benefit)	$	102		$	(165	)

A reconciliation of the provision (benefit) for income taxes and the amount computed by applying the statutory federal income tax rate to income before income taxes is detailed below:

	2017			2016
	(in thousands)
Tax provision (benefit) at expected statutory rate	$	75		$	(8	)
State taxes, net of federal benefit		81			(25	)
Permanent differences		450			6
Credits		(106	)		(123	)
Foreign tax expense, and other		(381	)		11
True-up to State NOL		—			299
Change in rate		1,662			—
Change in valuation allowance		(1,679	)		(325	)
Provision (benefit) for income taxes	$	102		$	(165	)

Loss before income taxes from domestic operations was ($65,000) and ($434,000) in 2017 and 2016, respectively. Income before income taxes from foreign operations was $284,000 and $417,000 in 2017 and 2016, respectively.

The Company has a total federal NOL carry-forward of $11,333,000 as of December 31, 2017. This federal NOL carry-forward expires through 2037 if not utilized prior to that date. The Company has total state NOL carry-forwards of $16,985,000 as of December 31, 2017. These state NOL carry-forwards expire through 2037 if not utilized prior to that date. The Company has research and development tax credit carry-forwards of approximately $1,515,000 at December 31, 2017 that can be used to reduce future income tax liabilities and expire principally between 2020 and 2038. The Company has foreign tax credit carry-forwards of approximately $727,000 at December 31, 2017 that are available to reduce future U.S. income tax liabilities subject to certain limitations. These foreign tax credit carry-forwards expire at various times between 2018 and 2020.

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In assessing the realizability of deferred tax assets, the Company considers whether it is more likely than not that some portion or all of the deferred tax assets will or will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become realizable. Based upon the weighting of positive and negative evidence, the Company has determined the results of future operations of one of its foreign subsidiaries will generate enough taxable income that it is more likely than not that deferred tax assets of $173,000 at December 31, 2017, generated from foreign NOL’s, can be utilized in the foreseeable future. The Company has also determined that a full valuation against the remaining net deferred tax assets is required and has recorded a valuation allowance to reduce deferred tax assets to the amount that is more likely than not to be realized. Should a change in circumstances lead to a change in judgment about the ability to realize deferred tax assets in future years, the Company will adjust related valuation allowances in the period that the change in circumstances occurs, along with a corresponding increase or charge to income. The Company recognizes interest and/or penalties, if any, related to income tax matters in income tax expense.

Deferred income taxes for 2017 and 2016 were provided for the temporary differences between the financial reporting basis and the tax basis of the Company's assets and liabilities. Tax effects of temporary differences and carry-forwards at December 31, 2017 and 2016 were as follows:

	December 31, 2017					December 31, 2016
	Deferred Tax					Deferred Tax
	Asset			Liability		Asset			Liability
	(in thousands)
Inventory reserve	$	325		$	—	$	1,083		$	—
Fixed assets		—			141		—			151
Other reserves and accruals		133			—		213			—
Stock-based compensation		18			—		384			—
Undistributed foreign earnings		—			—		—			144
Other		—			29		—			56
Tax credit carry-forwards		2,284			—		1,921			—
Federal tax loss carry-forwards		2,380			—		3,428			—
State tax loss carry-forwards		657			—		627			—
Foreign tax loss carry-forwards		173			—		214			—
Total deferred income taxes		5,970		$	170		7,870		$	351
Valuation allowance		(5,627	)				(7,305	)
Net deferred tax assets	$	173				$	214

The Company will recognize any interest and penalties related to unrecognized tax positions in income tax expense. At the date of adoption of ASC 740, the Company did not have a liability for unrecognized tax positions. In addition, the Company did not record any increases or decreases to its liability for unrecognized tax positions during the years ended December 31, 2017 or 2016. Accordingly, the Company has not accrued for any interest and penalties as of December 31, 2017 or 2016. The Company does not anticipate any change in its liability for unrecognized tax positions over the next fiscal year.

The Company files income tax returns in the U.S. federal, various state, Hong Kong and India jurisdictions. The statute of limitations for assessment by the Internal Revenue Service ("IRS") and state tax authorities is open for tax years ended December 31, 2014, 2015 and 2016, although carry-forward attributes that were generated prior to tax year 2014, including NOL carry-forwards and tax credits, may still be adjusted upon examination by the IRS or state tax authorities if they either have been or will be used in a future period. The Company is generally subject to examinations by foreign tax authorities from 2012 to the present.

G.CNB Loan

On December 31, 2016, MtronPTI renewed its Loan Agreement (the "CNB Loan Agreement") with City National Bank of Florida ("City National"). The CNB Loan Agreement provides for a revolving line of credit in the amount of $3.0 million (the "CNB Revolver"), which bears interest at a variable rate equal to 30-day LIBOR plus 200 basis

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points to be set on the first day of each month, and expires on September 30, 2018. The CNB Loan Agreement also provides that MtronPTI will pay City National a fee equal to 0.75% per year on the daily unused amount. The Company's obligations under the CNB Loan Agreement are secured only by cash collateral and do not require any other liens.

At December 31, 2017 and December 31, 2016, there was no balance outstanding under the CNB Revolver and no associated restricted cash.

H.Stockholders' Equity

Share Repurchase Program

On August 29, 2011, the Board authorized the Company to repurchase up to 100,000 shares of its common stock in accordance with applicable securities laws. This authorization increased the total number of shares authorized and available for repurchase under the Company's existing share repurchase program to 540,000 shares, at such times, amounts and prices as the Company shall deem appropriate. As of December 31, 2017, the Company had repurchased a total of 81,584 shares of common stock at a cost of $580,000, which shares are currently held in treasury.

Rights Offering

Pursuant to a Registration Statement on Form S-1 (Registration No. 333-218901) under the Securities Act of 1933, as amended (the "Securities Act"), and declared effective by the SEC on September 5, 2017, the Company distributed, at no charge, to the holders of the Company’s common stock, as of September 5, 2017 three transferable subscription rights for each share of common stock then owned (the “Rights Offering”). Each subscription right entitled the holder to purchase one-fourth of a share of common stock at a subscription price of $5.50 per whole share of common stock.

The Rights Offering also included an over-subscription right, which entitled a stockholder who exercised all of their basic subscription rights in full the right to purchase additional shares of common stock that remain unsubscribed at the expiration of the Rights Offering, subject to availability, at the same $5.50 per whole share subscription price.

The Company raised total gross proceeds of approximately $11,036,000, and incurred issuance costs of $242,000, which were deducted from the gross proceeds. The Company offered an aggregate of up to 2,006,598 shares of its common stock to its existing shareholders and received subscriptions for a total of 2,897,171 shares of its common stock, including 686,439 shares issued pro rata to shareholders who properly exercised over-subscription rights.

The Company estimated the fair value of the subscription rights using the Black-Scholes-Merton option-pricing model. The Black-Scholes-Merton pricing model requires subjective assumptions, including future stock price volatility and expected time to exercise, which greatly affect the calculated values. There is no expected dividend rate. Historical Company information was the basis for expected volatility assumption. The risk-free interest rate is based on the U.S. Treasury zero-coupon rates with a remaining term comparable to the expected term of the subscription rights. The Company estimated the fair value of the subscription rights to be approximately $10,000 at the time of original issuance. The Company then revalued the subscription rights on October 5, 2017 and October 25, 2017 at each time the rights offering was extended, and concluded that the incremental estimated fair value was de minimis. Because retained earnings are in a deficit position for the year ending December 31, 2017, this has been recorded as a debit and credit to additional paid in capital with no net impact.

Warrants

On August 6, 2013, the Company distributed 12,981,025 warrants to purchase shares of the Company's common stock as a dividend to holders of the Company's common stock on July 29, 2013, the record date for the dividend. Stockholders received five warrants for each share of the Company's common stock owned on the record date. When exercisable, 25 warrants will entitle their holder to purchase one share of the Company's common stock at an exercise price of $7.50 per share (subject to adjustment).

The warrants are "European style warrants" and will only become exercisable on the earlier of (i) their expiration date, August 6, 2018, and (ii) such date that the 30-day volume weighted average price per share, or VWAP, of the

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Company's common stock is greater than or equal to $15.00 (subject to adjustment). Once the warrants become exercisable, they may be exercised in accordance with the terms of the warrant agreement between the Company and the warrant agent until their expiration at 5:00 p.m., Eastern Time, on the expiration date.

I.Fair Value Measurements

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value guidance identifies three primary valuation techniques: the market approach, the income approach and the cost approach. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. The income approach uses valuation techniques to convert future amounts such as cash flows or earnings, to a single present amount. The measurement is based on the value indicated by current market expectations about those future amounts. The cost approach is based on the amount that currently would be required to replace the service capacity of an asset.

The fair value hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The fair value hierarchy gives the highest priority to observable inputs such as quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The maximization of observable inputs and the minimization of the use of unobservable inputs are required.

Classification within the fair value hierarchy is based upon the objectivity of the inputs that are significant to the valuation of an asset or liability as of the measurement date. The three levels within the fair value hierarchy are characterized as follows:

Level 1 - Quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date.

Level 2 - Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs include: quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in markets that are not active; inputs other than quoted prices that are observable for the asset or liability; and inputs that are derived principally from or corroborated by observable market data by correlation or other means.

Level 3 - Unobservable inputs for the asset or liability for which there is little, if any, market activity for the asset or liability at the measurement date. Unobservable inputs reflect the Company's own assumptions about what market participants would use to price the asset or liability. These inputs may include internally developed pricing models, discounted cash flow methodologies, as well as instruments for which the fair value determination requires significant management judgment.

Assets

To estimate the market value of its marketable securities, the Company obtains current market pricing from quoted market sources or uses pricing for identical securities. Assets measured at fair value on a recurring basis are summarized below.

(in thousands)	Level 1		Level 2		Level 3		Total December 31, 2017
Marketable Securities (equity securities)	$	3,803	$	—	$	—	$	3,803
U.S. Treasury securities (cash equivalents)	$	11,866	$	—	$	—	$	11,866

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(in thousands)	(Level 1)		(Level 2)		(Level 3)		Total December 31, 2016
Marketable Securities (equity securities)	$	2,770	$	—	$	—	$	2,770
U.S. Treasury securities (cash equivalents)	$	1,002	$	—	$	—	$	1,002

There were no transfers to or from level 2 to level 3 during the reporting period. The Company also has assets that may be subject to measurement at fair value on a non-recurring basis, including goodwill and intangible assets, and other long-lived assets. There were no liabilities subject to fair value on a non-recurring or recurring basis as of December 31, 2017 or 2016.

The Company reviews goodwill annually and the carrying value of long-lived assets whenever events and circumstances indicate that the carrying amounts of the assets may not be recoverable. If it is determined that the assets are impaired, the carrying value would be reduced to estimated recoverable value.

During the fourth quarter of 2017, the Company determined that its note receivable included within “Other assets” in the financial statements was impaired, and wrote the balance down by $102,000 to its net recoverable value of $101,000.

J. Employee Benefit Plans

The Company offers a defined contribution plan for eligible employees, in which the Company makes discretionary contributions up to 50% of the first 6% of eligible compensation contributed by participants. The Company contributed approximately $116,000 and $107,000 in discretionary contributions during 2017 and 2016, respectively. Participants vest in employer contributions starting after their second year of service at 20% increments, vesting 100% in year six.

K.Commitments and Contingencies

In the normal course of business, the Company and its subsidiaries may become defendants in certain product liability, patent infringement, worker claims and other litigation. The Company records a liability when it is probable that a loss has been incurred and the amount is reasonably estimable. The Company is not involved in any legal proceedings other than routine litigation arising in the normal course of business, none of which the Company believes will have a material adverse effect on the Company's business, financial condition or results of operations.

Rent Expense

Rent expense under operating leases was $285,000 and $249,000 for the years ended December 31, 2017 and 2016, respectively. The Company leases certain property and equipment, including warehousing, and sales and distribution equipment, under operating leases that extend from one to two years. Certain of these leases have renewal options.

L.Segment Information

The Company has identified two reportable business segments from operations: electronic components, which includes all products manufactured and sold by MtronPTI, and electronic instruments, which includes all products manufactured and sold by PTF. The Company's foreign operations in Hong Kong and India exist under MtronPTI.

53

Operating income (loss) is equal to revenues less cost of sales and operating expenses, excluding investment income, interest expense, and income taxes. Identifiable assets of the segment are those used in its operations and exclude general corporate assets. General corporate assets are principally cash and cash equivalents, short-term investments and certain other investments and receivables.

	Years Ended December 31,
	2017			2016
	(in thousands)
Revenues from Operations
Electronic components	$	21,516		$	20,691
Electronic instruments		886			200
Total consolidated revenues	$	22,402		$	20,891
Operating Income (Loss) from Operations
Electronic components	$	1,260		$	1,011
Electronic instruments		56			(61	)
Unallocated corporate expense		(1,040	)		(1,111	)
Consolidated total operating income (loss)		276			(161	)
Interest expense, net		(11	)		(22	)
Other (expense) income, net		(46	)		166
Total other (expense) income		(57	)		144
Income (loss) Before Income Taxes	$	219		$	(17	)
Capital Expenditures
Electronic components	$	131		$	162
Electronic instruments		—			—
General corporate		—			10
Total capital expenditures	$	131		$	172
Total Assets
Electronic components	$	11,899		$	9,015
Electronic instruments		811			531
General corporate		14,845			7,100
Consolidated total assets	$	27,555		$	16,646

M.Domestic and Foreign Revenues

For the years ended December 31, 2017 and 2016, domestic revenues were $16,090,000 and $14,893,000, respectively, and foreign revenues were $6,313,000 and $5,998,000, respectively. Significant foreign revenues from operations (10% or more of foreign sales) were as follows:

	Years Ended December 31,
	2017		2016
	(in thousands)
Malaysia	$	3,038	$	3,240
All other foreign countries		3,275		2,758
Total foreign revenues	$	6,313	$	5,998

The Company allocates its foreign revenue based on the customer's ship-to location.

54

EX-21.1

EXHIBIT 21.1

The LGL Group, Inc. Subsidiaries

Subsidiary Name	State or Country of Organization	Owned by The LGL Group
M-tron Industries, Inc.	Delaware		100.0	%
Piezo Technology, Inc.	Florida		100.0	%
Piezo Technology India Private Ltd.	India		99.0	%
M-tron Asia, LLC	Hong Kong		100.0	%
M-tron Industries, Ltd.	Hong Kong		100.0	%
GC Opportunities Ltd.	Mauritius		100.0	%
M-tron Services, Ltd.	Hong Kong		100.0	%
Precise Time and Frequency, LLC	Delaware		100.0	%
Lynch Systems, Inc.	South Dakota		100.0	%

EX-23.1

EXHIBIT 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in Registration Statements (No. 333-178840, No. 333-130763 and No. 333-91192) on Form S-8, Registration Statements (No. 333-192856, No. 333-191269, and No. 333-169540) on Form S-3, and Registration Statement (No.333-218901) on Form S-1 of The LGL Group, Inc. of our report dated March 22, 2018, relating to our audit of the consolidated financial statements as of December 31, 2017 and 2016 and for the years then ended, which appear in this Annual Report on Form 10-K of The LGL Group, Inc. for the year ended December 31, 2017.

/s/ RSM US LLP

Orlando, Florida

March 22, 2018

EX-31.1

EXHIBIT 31.1

CERTIFICATION OF THE PRINCIPAL EXECUTIVE OFFICER
PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Michael J. Ferrantino, Sr., certify that:

1 I have reviewed this annual report on Form 10-K of The LGL Group, Inc. for the year ended December 31, 2017;

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)) 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 the registrant's board of directors (or persons performing the equivalent functions):

(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.

March 21, 2018	/s/ Michael J. Ferrantino, Sr.
	Name:	Michael J. Ferrantino, Sr.
	Title:	Executive Chairman and Chief Executive Officer (Principal Executive Officer)

EX-31.2

EXHIBIT 31.2

CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER
PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, James W. Tivy, certify that:

1 I have reviewed this annual report on Form 10-K of The LGL Group, Inc. for the year ended December 31, 2017;

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)) 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 the registrant's board of directors (or persons performing the equivalent functions):

(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.

March 21, 2018	/s/ James W. Tivy
	Name:	James W. Tivy
	Title:	Chief Financial Officer (Principal Financial Officer)

EX-32.1

EXHIBIT 32.1

CERTIFICATION OF THE PRINCIPAL EXECUTIVE OFFICER
PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the annual report of The LGL Group, Inc., (the "Company") on Form 10-K for the year ended December 31, 2016, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Michael J. Ferrantino, Jr., Principal 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, to my knowledge:

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

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

March 21, 2018	/s/ Michael J. Ferrantino, Sr.
	Name:	Michael J. Ferrantino, Sr.
	Title:	Executive Chairman and Chief Executive Officer (Principal Executive Officer)

EX-32.2

EXHIBIT 32.2

CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER
PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the annual report of The LGL Group, Inc., (the "Company") on Form 10-K for the year ended December 31, 2017, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, James W. Tivy, Principal 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, to my knowledge:

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

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

March 21, 2018	/s/ James W. Tivy
	Name:	James W. Tivy
	Title:	Chief Financial Officer (Principal Financial Officer)

XML

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2017	Mar. 20, 2018	Jun. 30, 2017
Document And Entity Information [Abstract]
Entity Registrant Name	LGL GROUP INC
Entity Central Index Key	0000061004
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float			$ 10,601,412
Entity Common Stock, Shares Outstanding		4,698,393
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2017

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 13,250	$ 2,778
Marketable securities	3,803	2,770
Accounts receivable, net of allowances of $35 and $31, respectively	3,393	3,504
Inventories, net	3,875	3,638
Prepaid expenses and other current assets	229	200
Total Current Assets	24,550	12,890
Property, Plant and Equipment
Land	536	633
Buildings and improvements	3,973	3,966
Machinery and equipment	16,974	16,849
Gross property, plant and equipment	21,483	21,448
Less: accumulated depreciation	(19,304)	(18,737)
Net property, plant and equipment	2,179	2,711
Intangible assets, net	552	628
Deferred income taxes, net	173	214
Other assets	101	203
Total Assets	27,555	16,646
Current Liabilities:
Accounts payable	1,477	1,525
Accrued compensation and commissions expense	872	942
Other accrued expenses	278	288
Total Current Liabilities	2,627	2,755
Commitments and Contingencies (Note K)
Stockholders' Equity
Common stock, $0.01 par value - 10,000,000 shares authorized; 4,774,477 shares issued and 4,692,893 shares outstanding at December 31, 2017, and 2,757,050 shares issued and 2,675,466 shares outstanding at December 31, 2016	47	27
Additional paid-in capital	40,035	29,173
Accumulated deficit	(14,609)	(14,726)
Treasury stock, 81,584 shares held in treasury at cost at December 31, 2017 and 2016	(580)	(580)
Accumulated other comprehensive income (loss)	35	(3)
Total Stockholders' Equity	24,928	13,891
Total Liabilities and Stockholders' Equity	$ 27,555	$ 16,646

XML

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current Assets:
Accounts receivable, allowances	$ 35	$ 31
Stockholders' Equity
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	10,000,000	10,000,000
Common stock, shares issued (in shares)	4,774,477	2,757,050
Common stock, shares outstanding (in shares)	4,692,893	2,675,466
Treasury stock, (in shares)	81,584	81,584

XML

Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
REVENUES	$ 22,402	$ 20,891
Costs and expenses:
Manufacturing cost of sales	14,661	13,858
Engineering, selling and administrative	7,465	7,194
OPERATING INCOME (LOSS)	276	(161)
Other (Expense) Income:
Interest expense, net	(11)	(22)
Other (expense) income, net	(46)	166
Total Other (Expense) Income, Net	(57)	144
INCOME (LOSS) BEFORE INCOME TAXES	219	(17)
Income tax (provision) benefit	(102)	165
NET INCOME	$ 117	$ 148
Basic per share information:
Weighted average number of shares used in basic EPS calculation	2,929,641	2,665,043
Net income per share	$ 0.04	$ 0.06
Diluted per share information:
Weighted average number of shares used in diluted EPS calculation	3,035,104	2,665,730
Net income per share	$ 0.04	$ 0.06

XML

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Statement Of Income And Comprehensive Income [Abstract]
NET INCOME	$ 117	$ 148
Other comprehensive income (loss):
Unrealized gain (loss) on available-for-sale securities, net	38	(43)
Total other comprehensive income (loss)	38	(43)
COMPREHENSIVE INCOME	$ 155	$ 105

XML

Consolidated Statement of Stockholder's Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2015	$ 13,727	$ 27	$ 29,106	$ (14,874)	$ (572)	$ 40
Balance (in shares) at Dec. 31, 2015		2,665,434
Net income	148			148
Other comprehensive income (loss)	(43)					(43)
Stock-based compensation	67		67
Stock-based compensation (in shares)		11,952
Purchase of treasury stock	(8)				(8)
Purchase of treasury stock (in shares)		(1,920)
Balance at Dec. 31, 2016	$ 13,891	$ 27	29,173	(14,726)	(580)	(3)
Balance (in shares) at Dec. 31, 2016	2,675,466	2,675,466
Net income	$ 117			117
Other comprehensive income (loss)	38					38
Stock-based compensation	$ 88		88
Stock-based compensation (in shares)	10,830	10,830
Issuance of shares, net of issuance costs	$ 10,794	$ 20	10,774
Issuance of shares, net of issuance costs (in shares)		2,006,598
Balance at Dec. 31, 2017	$ 24,928	$ 47	$ 40,035	$ (14,609)	$ (580)	$ 35
Balance (in shares) at Dec. 31, 2017	4,692,893	4,692,894

XML

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
OPERATING ACTIVITIES
Net income	$ 117,000	$ 148,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	567,000	704,000
Amortization of finite-lived intangible assets	75,000	68,000
Gain on disposal of assets		(110,000)
Impairment of note receivable	102,000
Stock-based compensation	88,000	67,000
Bargain purchase gain		(4,000)
Deferred income tax expense (benefit)	41,000	(214,000)
Gain on sale of marketable securities	(21,000)
Dividend from marketable securities	(6,000)	(62,000)
Changes in operating assets and liabilities:
Decrease (increase) in accounts receivable, net	111,000	(890,000)
Increase in inventories, net	(237,000)	(62,000)
Increase in prepaid expenses and other assets	(28,000)	(1,000)
(Decrease) increase in accounts payable, accrued compensation and commissions expense and other accrued liabilities	(128,000)	634,000
Net cash provided by operating activities	681,000	278,000
INVESTING ACTIVITIES
Purchase of marketable securities	(1,002,000)	(2,695,000)
Capital expenditures	(131,000)	(172,000)
Acquisition of a business		(295,000)
Proceeds from sale of land	96,000
Other	34,000	117,000
Net cash used in investing activities	(1,003,000)	(3,045,000)
FINANCING ACTIVITIES
Proceeds from issuance of common stock, net of issuance costs	10,794,000
Purchase of treasury stock		(8,000)
Net cash provided by (used in) financing activities	10,794,000	(8,000)
Increase (decrease) in cash and cash equivalents	10,472,000	(2,775,000)
Cash and cash equivalents at beginning of year	2,778,000	5,553,000
Cash and cash equivalents at end of year	13,250,000	2,778,000
Supplemental Disclosure:
Cash paid for interest	23,000	17,000
Cash paid for income taxes	$ 41,000	52,000
Supplemental Schedule of Noncash Investing Activities:
Fair value of equipment acquired		85,000
Fair value of intangible assets acquired		214,000
Current assets acquired		45,000
Current liabilities assumed		(45,000)
Bargain purchase gain		(4,000)
Cash consideration paid		$ 295,000

XML

Accounting And Reporting Policies

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Accounting and Reporting Policies

A.Accounting and Reporting Policies

Organization

The LGL Group, Inc. (the "Company"), incorporated in 1928 under the laws of the State of Indiana and reincorporated under the laws of the State of Delaware in 2007, is a holding company with subsidiaries engaged in the design, manufacturing and marketing of highly-engineered, high reliability frequency and spectrum control products used to control the frequency or timing of signals in electronic circuits and in the design of high performance Frequency and Time Reference Standards that form the basis for timing and synchronization in various applications.

As of December 31, 2017, the subsidiaries of the Company are as follows:

	Owned By The LGL Group, Inc.
M-tron Industries, Inc.		100.0	%
Piezo Technology, Inc.		100.0	%
Piezo Technology India Private Ltd.		99.0	%
M-tron Asia, LLC		100.0	%
M-tron Industries, Ltd.		100.0	%
GC Opportunities Ltd.		100.0	%
M-tron Services, Ltd.		100.0	%
Precise Time and Frequency, LLC		100.0	%
Lynch Systems, Inc.		100.0	%

The Company operates through its two principal subsidiaries, M-tron Industries, Inc. ("MtronPTI"), which includes the operations of Piezo Technology, Inc. ("PTI") and M-tron Asia, LLC ("Mtron"), and Precise Time and Frequency, LLC ("PTF"), a newly formed subsidiary in 2016, to hold the assets of Precise Time and Frequency, Inc., as discussed in Note B below. The Company has operations in Orlando, Florida, Yankton, South Dakota, Wakefield, Massachusetts and Noida, India. MtronPTI also has sales offices in Sacramento, California, Austin, Texas and Hong Kong.

Principles of Consolidation

The consolidated financial statements include the accounts of the Company and entities for which it has control. Material intercompany transactions and accounts have been eliminated in consolidation.

Uses of Estimates

The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.

Cash and Cash Equivalents

Cash and cash equivalents consist of highly-liquid investments with a maturity of less than three months when purchased.

Marketable Securities

Marketable debt and equity securities are categorized as available for-sale-securities and are reported at fair value. Unrealized gains and losses related to changes in the fair value of available-for-sale securities are recognized in accumulated other comprehensive income (loss) within stockholders' equity.

Accounts Receivable

Accounts receivable, on a consolidated basis, consists principally of amounts due from both domestic and foreign customers. Credit is extended based on an evaluation of the customer's financial condition and collateral is not required. In relation to export sales, the Company requires letters of credit supporting a significant portion of the sales price prior to production to limit exposure to credit risk. Certain credit sales are made to industries that are subject to cyclical economic changes. 

The Company maintains allowances for doubtful accounts for estimated losses resulting from the inability of its customers to make required payments. These allowances are maintained at a level that management believes is sufficient to cover potential credit losses. Estimates are based on historical collection experience, current trends, credit policy and the relationship between accounts receivable and revenues. In determining these estimates, the Company examines historical write-offs of its receivables and reviews each customer's account to identify any specific customer collection issues. If the financial condition of its customers were to deteriorate, resulting in an impairment of their ability to make payment, additional allowances might be required. 

Inventories

Inventories are valued at the lower of cost or net realizable value using the FIFO (first-in, first-out) method.

The Company maintains a reserve for inventory based on estimated losses that result from inventory that becomes obsolete or for which the Company has excess inventory levels as of period end. In determining these estimates, the Company performs an analysis on current demand and usage for each inventory item over historical time periods. Based on that analysis, the Company reserves a percentage of the inventory amount within each time period based on historical demand and usage patterns of specific items in inventory.

Property, Plant and Equipment, Net

Property, plant and equipment are recorded at cost less accumulated depreciation and include expenditures for major improvements. Maintenance and repairs are charged to operations as incurred. Depreciation is computed for financial reporting purposes using the straight-line method over the estimated useful lives of the assets, which range from 5 years to 35 years for buildings and improvements, and from 3 to 10 years for other fixed assets. Property, plant and equipment are periodically reviewed for indicators of impairment. If any such indicators were noted, the Company would assess the appropriateness of the assets' carrying value and record any impairment at that time.

Depreciation expense from operations was approximately $567,000 for 2017 and $704,000 for 2016.

Warranties

The Company offers a standard one-year warranty. The Company tests its products prior to shipment in order to ensure that they meet each customer's requirements based upon specifications received from each customer at the time its order is received and accepted. The Company's customers may request to return products for various reasons, including, but not limited to, the customers' belief that the products are not performing to specification. The Company's return policy states that it will accept product returns only with prior authorization and if the product does not meet customer specifications, in which case the product would be replaced or repaired. To accommodate the Company's customers, each request for return is reviewed, and if and when it is approved, a return materials authorization ("RMA") is issued to the customer.

Each month, the Company records a specific warranty reserve for approved RMAs covering products that have not yet been returned. The Company does not maintain a general warranty reserve because, historically, valid warranty returns resulting from a product not meeting specifications or being non-functional have been de minimis. As of December 31, 2017 and 2016, accrued warranty expense was $10,000 and $80,000, respectively, and is included within other accrued expenses in the accompanying consolidated balance sheets.

Intangible Assets

Intangible assets are recorded at cost less accumulated amortization. Amortization is computed for financial reporting purposes using the straight-line method over the estimated useful lives of the assets, which range up to 10 years. The intangible assets consist of intellectual property and goodwill. The net carrying value of the amortizable intangible assets was $512,000 and $588,000 as of December 31, 2017 and 2016, respectively. Goodwill, which is not amortizable, was $40,000 as of December 31, 2017 and 2016.

The estimated aggregate amortization expense for intangible assets, excluding goodwill, for each of the remaining years of the estimated useful life is as follows (in thousands):

2018	$	75
2019		75
2020		75
2021		75
2022		75
Thereafter		137
Total	$	512

Revenue Recognition

The Company recognizes revenue from the sale of its products in accordance with the criteria in Accounting Standards Codification ("ASC") 605, Revenue Recognition, which are:

• persuasive evidence that an arrangement exists;

• delivery has occurred;

• the seller's price to the buyer is fixed and determinable; and

• collectability is reasonably assured.

The Company meets these conditions upon shipment because title and risk of loss passes to the customer at that time. However, the Company offers a limited right of return and/or authorized price protection provisions in its agreements with certain electronic component distributors who resell the Company's products to original equipment manufacturers or electronic manufacturing services companies. As a result, the Company estimates and records a reserve for future returns and other charges against revenue at the time of shipment consistent with the terms of sale. The reserve is estimated based on historical experience with each respective distributor.

The Company recognizes revenue related to transactions with a right of return and/or authorized price protection provisions when the following conditions are met:

• seller's price to the buyer is fixed or determinable at the date of sale;

• buyer has paid the seller, or the buyer is obligated to pay the seller and the obligation is not contingent on resale of the product;

• buyer's obligation to the seller would not be changed in the event of theft or physical destruction or damage of the product;

• buyer acquiring the product for resale has economic substance apart from that provided by the seller;

• seller does not have obligations for future performance; and

• the amount of future returns can be reasonably estimated.

Shipping Costs

Amounts billed to customers related to shipping and handling are classified as revenue, and the Company's shipping and handling costs are included in manufacturing cost of sales.

Research and Development Costs

Research and development costs are charged to operations as incurred. Such costs were approximately $1,827,000 and $1,906,000 in 2017 and 2016, respectively, and are included within engineering, selling and administrative expenses.

Advertising Expense

Advertising costs are charged to operations as incurred. Such costs were approximately $18,000 in 2017, compared with $50,000 in 2016, and are included within engineering, selling and administrative expenses.

Stock-Based Compensation

The Company measures the cost of employee services in exchange for an award of equity instruments based on the grant-date fair value of the award and recognizes the cost over the requisite service period, typically the vesting period.

The Company estimates the fair value of stock options on the grant date using the Black-Scholes-Merton option-pricing model. The Black-Scholes-Merton option-pricing model requires subjective assumptions, including future stock price volatility and expected time to exercise, which greatly affect the calculated values. There is no expected dividend rate. Historical Company information was the basis for the expected volatility assumption as the Company believes that the historical volatility over the life of the option is indicative of expected volatility in the future. The risk-free interest rate is based on the U.S. Treasury zero-coupon rates with a remaining term equal to the expected term of the option. The Company records any forfeitures in the period that the shares are forfeited.

Restricted stock awards are made at a value equal to the market price of the Company's common stock on the date of the grant.

Earnings Per Share

The Company computes earnings per share in accordance with ASC 260, Earnings Per Share. Basic earnings per share is computed by dividing net earnings by the weighted average number of common shares outstanding during the period. Diluted earnings per share adjusts basic earnings per share for the effects of stock options and other potentially dilutive financial instruments, only in the periods in which the effects are dilutive.

For the years ended December 31, 2017 and 2016, there were options to purchase 42,676 shares and 166,996 shares, respectively, of common stock and warrants to purchase 519,241 shares of common stock that were excluded from the diluted earnings per share computation because the impact of the assumed exercise of such stock options or warrants would have been anti-dilutive.

	Years Ended December 31,
	2017		2016
Weighted average shares outstanding - basic		2,929,641		2,665,043
Effect of diluted securities		105,463		687
Weighted average shares outstanding - diluted		3,035,104		2,665,730

Income Taxes

The Company's deferred income tax assets represent (a) temporary differences between the financial statement carrying amount and the tax basis of existing assets and liabilities that will result in deductible amounts in future years, and (b) the tax effects of net operating loss carry-forwards. In assessing the realizability of deferred tax assets in accordance with the provisions of ASC 740, Income Taxes, the Company considers whether it is more likely than not that some portion or all of the deferred tax assets will or will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become realizable.

The Company has determined the results of future operations of one of its foreign subsidiaries will generate enough taxable income that it is more likely than not that deferred tax assets of $173,000 generated from net operating losses (“NOL’s”) in a foreign subsidiary, can be utilized in the foreseeable future. The Company has also determined that a full valuation against the remaining net deferred tax assets is required and has recorded a valuation allowance to reduce deferred tax assets to the amount that is more likely than not to be realized. Should a change in circumstances lead to a change in judgment about the ability to realize deferred tax assets in future years, the Company will adjust related valuation allowances in the period that the change in circumstances occurs, along with a corresponding increase or charge to income. The Company recognizes interest and/or penalties, if any, related to income tax matters in income tax expense. 

Concentration Risk

In 2017, the Company's largest customer, an electronics contract manufacturing company in the aerospace and defense markets, accounted for $3,744,000, or 16.7% of the Company's total revenues, compared to $3,275,000, or 15.7%, in 2016.

A significant portion of the Company's accounts receivable is concentrated with a relatively small number of customers. As of December 31, 2017, four of the Company's largest customers accounted for approximately $1,100,000, or 32.0% of accounts receivable. As of December 31, 2016, four of the Company's largest customers accounted for approximately $1,242,000, or 35.1% of accounts receivable. The Company carefully evaluates the creditworthiness of its customers in deciding to extend credit, and utilizes letters of credit to further limit credit risk for export sales. As a result of these policies, the Company has experienced very low historical bad debt expense and believes the related risk to be minimal.

At various times throughout the year and at December 31, 2017, some deposits held at financial institutions were in excess of federally insured limits. The Company has not experienced any losses related to these balances and believes the related risk to be minimal.

Segment Information

The Company reports segment information in accordance with ASC 280, Segment Information ("ASC 280"). ASC 280 requires companies to report financial and descriptive information for each identified operating segment based on management's internal organizational decision-making structure. Management has identified the Company’s two segments as electronic components and electronic instruments.

Impairments of Long-Lived Assets

Long-lived assets, including intangible assets subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. Long-lived assets are grouped with other assets to the lowest level to which identifiable cash flows are largely independent of the cash flows of other groups of assets and liabilities. Management assesses the recoverability of the carrying cost of the assets based on a review of projected undiscounted cash flows. If an asset is held for sale, management reviews its estimated fair value less cost to sell. Fair value is determined using pertinent market information, including appraisals or broker's estimates, and/or projected discounted cash flows. In the event an impairment loss is identified, it is recognized based on the amount by which the carrying value exceeds the estimated fair value of the long-lived asset.

Financial Instruments

Cash and cash equivalents, trade accounts receivable, short-term borrowings, trade accounts payable, and accrued expenses are carried at cost, which approximates fair value due to the short-term maturity of these instruments.

Foreign Currency Translation

The assets and liabilities of international operations are re-measured at the exchange rates in effect at the balance sheet date for monetary assets and liabilities and at historical rates for non-monetary assets and liabilities, with the related re-measurement gains or losses reported within the consolidated statement of operations. The results of international operations are re-measured at the monthly average exchange rates. The Company's foreign subsidiaries and respective operations' functional currency is the U.S. dollar. The Company has determined this based upon the majority of transactions with customers as well as inter-company transactions and parental support being based in U.S. dollars. The Company has recognized a re-measurement gain of $22,000 and a re-measurement loss of $(2,000), in 2017 and 2016, respectively, which is included within other income, net in the consolidated statements of operations.

Recently Issued Accounting Pronouncements

In January 2017, the Financial Accounting Standards Board (the "FASB") issued ASU 2017-04, "Intangibles – Goodwill and Other – (Topic 350): Simplifying the Test for Goodwill Impairment". ASU 2017-04 simplifies the accounting for goodwill impairment by removing the requirement to calculate the implied fair value. Instead, it requires that an entity records an impairment charge based on the excess of a reporting unit's carrying amount over its fair value. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. ASU 2016-15 is effective for fiscal years, and for interim periods within those years, beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company implemented this ASU 2017-04 during the fourth quarter and effective for its fiscal year ended December 31, 2017, on a prospective basis.

In August 2016, the FASB issued ASU 2016-15, "Statement of Cash Flows – (Topic 230): Classification of Certain Cash Receipts and Cash Payments". ASU 2016-15 addresses eight specific cash flow issues with the objective of reducing the existing diversity in practice. ASU 2016-15 is effective for fiscal years, and for interim periods within those years, beginning after December 15, 2017. Early application is permitted. The Company implemented this ASU 2016-15 effective for its fiscal year ended December 31, 2017, using the retrospective transition method to each period presented. No changes were required as none of the eight specific cash flow issues addressed by ASU 2016-15 were applicable to the Company for the periods presented.

In March 2016, the FASB issued ASU 2016-09, "Compensation – Stock Compensation (Topic 718): Improvements to Employee Share–Based Payment Accounting". ASU 2016-09 simplifies the accounting for share–based payment award transactions including: income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. ASU 2016-09 is effective for fiscal years beginning after December 15, 2016. The Company implemented the requirements of ASU 2016-09 effective for its fiscal year ended December 31, 2017, with no impact to the financial statements, as there were no prior transactions to which the modified retrospective transition method by means of a cumulative-effect adjustment to equity would have applied.

In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)". The objective of this update is to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those annual periods and is to be applied utilizing a modified retrospective approach. The Company does not expect the adoption of ASU 2016-02 to have a material impact on its consolidated financial statements because there are no material operating leases.

In January 2016, the FASB issued ASU 2016-01, "Financial Instruments – Recognition and Measurement of Financial Assets and Financial Liabilities (Topic 825)". ASU 2016-01 revises the classification and measurement of investments in certain equity investments and the presentation of certain fair value changes for certain financial liabilities measured at fair value. ASU 2016-01 requires the change in fair value of many equity investments to be recognized in net income. ASU 2016-01 is effective for interim and annual periods beginning after December 15, 2017, with early adoption permitted. Adopting ASU 2016-01 will result in a cumulative effect adjustment to the Company's retained earnings as of the beginning of the year of adoption. The Company is currently evaluating the potential effects of adopting the provisions of ASU 2016-01.

In November 2015, the FASB issued ASU 2015-17 "Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes", which simplifies the presentation of deferred income taxes. Under the new accounting standard, deferred tax assets and liabilities are required to be classified as noncurrent, eliminating the prior requirement to separate deferred tax assets and liabilities into current and noncurrent. The new guidance is effective for financial statements issued for annual periods beginning after December 15, 2016, and interim periods within those annual periods, with early adoption permitted. The standard may be adopted prospectively or retrospectively to all periods presented. The Company adopted this guidance effective for its fiscal year ended December 31, 2017, on a retrospective basis, with only a limited effect on its balance sheet classification and disclosures.

In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330): “Simplifying the Measurement of Inventory”, which changes the measurement principle for inventory from the lower of cost or market to the lower of cost and net realizable value. ASU 2015-11 defines net realizable value as estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. The new guidance must be applied on a prospective basis. The Company adopted ASU 2015-11 effective January 1, 2017. The adoption of this guidance did not have a material impact on our consolidated financial statements.

In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers", also known as the "New Revenue Standard". This update is the result of a collaborative effort by the FASB and the International Accounting Standards Board to simplify revenue recognition guidance, remove inconsistencies in the application of revenue recognition, and to improve comparability of revenue recognition practices across entities, industries, jurisdictions, and capital markets. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to receive for those goods or services. The New Revenue Standard is applied through the following five-step process:

1. Identify the contract(s) with a customer.

2. Identify the performance obligation in the contract.

3. Determine the transaction price.

4. Allocate the transaction price to the performance obligations in the contract.

5. Recognize revenue when (or as) the entity satisfies a performance obligation.

For a public entity, this update is effective for annual and interim reporting periods beginning after December 15, 2017 with early adoption permitted. This standard can be applied on either a retrospective or modified retrospective approach. Since May, 2014, a number of ASU's have been issued which further refine the original guidance issued under ASU 2014-09 and are effective in conjunction with this original standard.

The Company established an implementation approach to assess the impact of the new revenue guidance on its operations, consolidated financial statements and related disclosures. This assessment included (1) performing contract analyses for each revenue stream identified, (2) assessing the noted differences in recognition and measurement that may result from adopting this new standard, (3) performing detailed analyses of contracts with large customers, and (4) performing transaction level testing for consistency with contract provisions that affect revenue recognition. The Company evaluated the potential impacts of the new standard on its existing revenue recognition policies and procedures during the fiscal year ended December 31, 2017, and determined that the Company’s performance obligations are met at shipping point, with no other material obligations. The Company further determined that returns are immaterial, its warranty terms are consistent, and consignment inventory is accounted for appropriately. The Company also determined that there were no incremental disaggregated revenue disclosures required in our consolidated financial statements. Based on the results of the evaluation, adoption of the new standard will not have a material impact on our consolidated financial statements. The New Revenue Standard became effective for us on January 1, 2018 and was applied on a retrospective basis, with no cumulative effect of adoption to any of the financial statement line items.

No other new accounting pronouncements issued or effective during the fiscal year have had or are expected to have a material impact on the Company's consolidated financial statements.

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Business Combination

12 Months Ended

Dec. 31, 2017

Business Combinations [Abstract]

Business Combination

B.Business Combination

On September 2, 2016, PTF acquired certain assets and assumed certain liabilities of Precise Time and Frequency, Inc. ("PTF Inc.") for cash consideration of $295,000 (the "PTF Acquisition"). The PTF Acquisition was accounted for under the acquisition method of accounting for business combinations pursuant to the provisions of ASC 805, Business Combinations. The acquisition method of accounting requires, among other things, that the assets acquired and liabilities assumed in a business combination be measured at their fair values as of the closing date of the acquisition.

The acquired assets include intellectual property and equipment that will support the Company's strategy to be a broader based supplier of highly engineered products for the generation, synchronization and control of timing and frequency. The intangible assets acquired are being amortized over a weighted average period of ten years. The Company believes this product line will complement the complete line of frequency control products that MtronPTI currently provides.

The following is a summary of the preliminary purchase price allocation to the estimated fair values of assets acquired and liabilities assumed in the PTF Acquisition (in thousands):

Purchase consideration	$	295
Net assets acquired:
Current assets		45
Fixed assets		85
Intangible assets		214
Current liabilities		(45	)
Net assets acquired	$	299
Bargain purchase gain	$	(4	)

The assets acquired and liabilites assumed by PTF were done through the distressed sale of PTF Inc. and resulted in a bargain purchase gain which is recorded in other income (expense), net in the accompanying consolidated statement of operations for the year ended December 31, 2016.

Management estimated the fair value of net assets acquired using valuation techniques including income, cost and market approaches. In estimating the fair value of acquired assets and assumed liabilities, the fair value estimates are based on, but not limited to, expected future revenues and cash flows, expected future growth rates and estimated discount rates.

The following table sets forth certain unaudited pro forma information for the year ended December 31, 2016  assuming that the PTF Acquisition occurred prior to January 1, 2016 (in thousands, except per share data):

	Year Ended December 31, 2016
	Historical		Pro Forma Adjustments		Pro Forma
Revenue	$	21,129	$	—	$	21,129
Net income	$	136	$	25	$	161
Basic net income per share	$	0.05	$	0.01	$	0.06
Diluted net income per share	$	0.05	$	0.01	$	0.06

The pro forma adjustments include amortization expense related to the acquired intangible assets and an adjustment to remove acquisition related expenses incurred in 2016 that for pro forma purposes should be reflected in a prior period.

The net sales included in the Company's consolidated statement of operations which were generated by the PTF Acquisition from the acquisition closing date of September 2, 2016 through December 31, 2016 was $200,000. The losses included in the Company's consolidated statement of operations derived from the PTF Acquisition's business from the acquisition closing date to December 31, 2016 were ($57,000).

Acquisition-related costs are those costs the acquirer incurs to effect a business combination, including advisory, legal, accounting, valuation, and other professional or consulting fees. The Company incurred a total of approximately $38,000 of acquisition-related costs which were charged to engineering, general and administrative expenses during the year ended December 31, 2016.

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Inventories

12 Months Ended

Dec. 31, 2017

Inventory Disclosure [Abstract]

Inventories

C.Inventories

The Company reduces the value of its inventories to net realizable value when the net realizable value is believed to be less than the cost of the item. The inventory reserve for obsolescence as of December 31, 2017 and 2016 was $1,213,000 and $2,773,000, respectively. During the year ended December 31, 2017, the Company wrote off approximately $1,254,000 in previously reserved obsolete inventory with a zero net realizable value. As a result of being written off, this inventory is no longer included in the Company’s inventory balance or its reserve for obsolescence.

	December 31,
	2017		2016
	(in thousands)
Raw materials	$	1,526	$	1,408
Work in process		1,337		1,306
Finished goods		1,012		924
Total Inventories, net	$	3,875	$	3,638

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Related Party Transactions

12 Months Ended

Dec. 31, 2017

Related Party Transactions [Abstract]

Related Party Transactions

D.Related Party Transactions

As of December 31, 2017 approximately $11,050,000 was invested in a United States Treasury money market fund which is included in cash and cash equivalents on the accompanying balance sheet. Also, as of December 31, 2017, approximately $3,792,000 was invested in a market neutral mutual fund which is included in marketable securities on the accompanying consolidated balance sheets. Amounts invested in the market neutral mutual fund generated $24,000 of investment income during 2017 that is classified as other income, net on the accompanying consolidated statement of operations.

As of December 31, 2016 approximately $1,002,000 was invested in a United States Treasury money market fund which is included in cash and cash equivalents on the accompanying consolidated balance sheets, and $2,714,000 was invested in a market neutral mutual fund which is included in marketable securities on the accompanying consolidated balance sheets.

These funds are managed by a related entity (the "Fund Manager") which is related through a common directorwho is also a 10% stockholder, and currently serves as an executive officer of the Fund Manager. The fund transactions in 2017 and 2016 were directed solely at the discretion of the Company’s management.

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Stock-Based Compensation

12 Months Ended

Dec. 31, 2017

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-Based Compensation

E.Stock-Based Compensation

On August 4, 2011, the Company's stockholders approved the 2011 Incentive Plan. 500,000 shares of common stock were authorized for issuance under the 2011 Incentive Plan. On June 16, 2016, the Company's stockholders approved the Amended and Restated 2011 Incentive Plan which increased the shares of common stock authorized for issuance to 750,000 shares of common stock. The Company believes that such awards better align the interests of its employees with those of its shareholders. Option awards are generally granted with an exercise price either at or 10% above the market price of the Company's stock at the date of grant; those option awards generally have 5-year contractual terms and generally vest over three years. Restricted stock awards are granted at a value equal to the market price of the Company's common stock on the date of grant.

The following table summarizes the inputs to the option valuation model for the options granted during the years ended December 31, 2017 and 2016:

	2017	2016
Expected volatility	27%	31%
Dividend rate	0%	0%
Expected term (in years)	3.55	3.25 – 3.55
Risk-free rate	2.01%	0.92% – 1.49%

The Company bases expected volatility on the weighted average historical stock volatility of the Company's common stock. There is no dividend rate, as dividends are not expected to be paid. The expected term utilizes historical data to estimate the period of time that the options are expected to remain unexercised. The Company bases risk-free rates on the U.S. Treasury zero-coupon rates with a remaining term equal to the expected term of the option. The Company records any forfeitures in the period that the shares are forfeited.

The following table summarizes information about stock options outstanding and exercisable at December 31, 2017:

	Number of Shares Outstanding			Weighted Average Exercise Price		Weighted Average Grant Date Fair Value		Weighted Average Remaining Term (in years)		Aggregate Intrinsic Value (in thousands)
Option Balances at December 31, 2016		176,344		$	4.90	$	1.31	3.4		$	78
Options Granted		9,541			6.09		1.05
Options Exercised		—			—		—
Options Forfeited		(4,500	)		4.01		0.96
Options Expired		—			—		—
Option Balances at December 31, 2017		181,385		$	4.98	$	1.30		2.4	$	158
Options Exercisable at December 31, 2017		128,692		$	5.04	$	1.41		1.9	$	113

The weighted-average grant-date fair value of options granted during the years 2017 and 2016 was $1.05 and $1.04, respectively. As of December 31, 2017, there was approximately $45,000 of total unrecognized compensation expense related to unvested share-based compensation arrangements.

During the year ended December 31, 2017, the Company issued 10,830 shares with a weighted average grant date fair value of $5.54 per share. These shares were fully vested on the date of issuance. As of December 31, 2017, there were no unvested restricted shares granted under the Amended and Restated 2011 Incentive Plan.

The Amended and Restated 2011 Incentive Plan had 416,852 shares remaining available for future issuance at December 31, 2017.

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Income Taxes

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Income Taxes

F. Income Taxes

On December 22, 2017, the U.S. enacted the Tax Cuts and Jobs Act (the “2017 Act”). The 2017 Act significantly changes U.S. corporate income tax law. Among other changes effective in 2017, the 2017 Act requires companies to pay a one-time tax on certain unrepatriated earnings of foreign subsidiaries. The Company calculated the impact of the 2017 Act in its income tax provision for the year ended December 31, 2017 in accordance with its understanding of the 2017 Act and guidance available as of the date of this filing.

The Company recognized tax expense of $1,662,000 related to the remeasurement of certain deferred tax assets and liabilities from 34% to 21%. The most material deferred taxes to be remeasured related to inventory reserves, and net operating losses (after reduction for the one-time transition tax) and property, plant and equipment. This tax expense from remeasurement of deferred tax assets had no impact on our effective tax rate as it was completely offset by the Company’s valuation allowance.

The Company also recognized provisional tax expense of $565,000 related to the one-time transition tax on the deemed repatriation of foreign earnings. The calculation of the one-time tax is quite complex, requiring determinations of liquid asset balances over three years, determination of foreign earnings and profits (“E&P," a U.S. tax measure) at multiple dates, and multiple other computations. Our provisional calculated tax expense was impacted by cash and other liquid assets taxable at a 15.5% rate and the balance of non-cash E&P taxable at 8%. The one-time transition tax had no impact on our 2017 effective tax rate as it was completely offset by the Company’s valuation allowance. Additional work is necessary to perform a more detailed analysis of historical foreign earnings. Upon gathering all necessary data, interpreting any additional guidance from tax authorities, and completing the analysis, our provisional amount will be adjusted in the measurement period allowable, but in no circumstances will the measurement period extend beyond one year from the enactment date.

Income tax provision (benefit) for the years ended December 31, 2017 and 2016 is as follows:

	2017			2016
	(in thousands)
Current:
Federal	$	—		$	—
State and local		18			8
Foreign		43			41
Total Current		61			49
Deferred:
Federal		1,637			(211	)
State and local		42			267
Foreign		41			55
Total before change in valuation allowance		1,720			111
Change in Valuation Allowance		(1,679	)		(325	)
Net Deferred		41			(214	)
Income tax provision (benefit)	$	102		$	(165	)

A reconciliation of the provision (benefit) for income taxes and the amount computed by applying the statutory federal income tax rate to income before income taxes is detailed below:

	2017			2016
	(in thousands)
Tax provision (benefit) at expected statutory rate	$	75		$	(8	)
State taxes, net of federal benefit		81			(25	)
Permanent differences		450			6
Credits		(106	)		(123	)
Foreign tax expense, and other		(381	)		11
True-up to State NOL		—			299
Change in rate		1,662			—
Change in valuation allowance		(1,679	)		(325	)
Provision (benefit) for income taxes	$	102		$	(165	)

Loss before income taxes from domestic operations was ($65,000) and ($434,000) in 2017 and 2016, respectively. Income before income taxes from foreign operations was $284,000 and $417,000 in 2017 and 2016, respectively.

The Company has a total federal NOL carry-forward of $11,333,000 as of December 31, 2017. This federal NOL carry-forward expires through 2037 if not utilized prior to that date. The Company has total state NOL carry-forwards of $16,985,000 as of December 31, 2017. These state NOL carry-forwards expire through 2037 if not utilized prior to that date. The Company has research and development tax credit carry-forwards of approximately $1,515,000 at December 31, 2017 that can be used to reduce future income tax liabilities and expire principally between 2020 and 2038. The Company has foreign tax credit carry-forwards of approximately $727,000 at December 31, 2017 that are available to reduce future U.S. income tax liabilities subject to certain limitations. These foreign tax credit carry-forwards expire at various times between 2018 and 2020.

In assessing the realizability of deferred tax assets, the Company considers whether it is more likely than not that some portion or all of the deferred tax assets will or will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become realizable. Based upon the weighting of positive and negative evidence, the Company has determined the results of future operations of one of its foreign subsidiaries will generate enough taxable income that it is more likely than not that deferred tax assets of $173,000 at December 31, 2017, generated from foreign NOL’s, can be utilized in the foreseeable future. The Company has also determined that a full valuation against the remaining net deferred tax assets is required and has recorded a valuation allowance to reduce deferred tax assets to the amount that is more likely than not to be realized. Should a change in circumstances lead to a change in judgment about the ability to realize deferred tax assets in future years, the Company will adjust related valuation allowances in the period that the change in circumstances occurs, along with a corresponding increase or charge to income. The Company recognizes interest and/or penalties, if any, related to income tax matters in income tax expense. 

Deferred income taxes for 2017 and 2016 were provided for the temporary differences between the financial reporting basis and the tax basis of the Company's assets and liabilities. Tax effects of temporary differences and carry-forwards at December 31, 2017 and 2016 were as follows:

	December 31, 2017					December 31, 2016
	Deferred Tax					Deferred Tax
	Asset			Liability		Asset			Liability
	(in thousands)
Inventory reserve	$	325		$	—	$	1,083		$	—
Fixed assets		—			141		—			151
Other reserves and accruals		133			—		213			—
Stock-based compensation		18			—		384			—
Undistributed foreign earnings		—			—		—			144
Other		—			29		—			56
Tax credit carry-forwards		2,284			—		1,921			—
Federal tax loss carry-forwards		2,380			—		3,428			—
State tax loss carry-forwards		657			—		627			—
Foreign tax loss carry-forwards		173			—		214			—
Total deferred income taxes		5,970		$	170		7,870		$	351
Valuation allowance		(5,627	)				(7,305	)
Net deferred tax assets	$	173				$	214

The Company will recognize any interest and penalties related to unrecognized tax positions in income tax expense. At the date of adoption of ASC 740, the Company did not have a liability for unrecognized tax positions. In addition, the Company did not record any increases or decreases to its liability for unrecognized tax positions during the years ended December 31, 2017 or 2016. Accordingly, the Company has not accrued for any interest and penalties as of December 31, 2017 or 2016. The Company does not anticipate any change in its liability for unrecognized tax positions over the next fiscal year.

The Company files income tax returns in the U.S. federal, various state, Hong Kong and India jurisdictions. The statute of limitations for assessment by the Internal Revenue Service ("IRS") and state tax authorities is open for tax years ended December 31, 2014, 2015 and 2016, although carry-forward attributes that were generated prior to tax year 2014, including NOL carry-forwards and tax credits, may still be adjusted upon examination by the IRS or state tax authorities if they either have been or will be used in a future period. The Company is generally subject to examinations by foreign tax authorities from 2012 to the present.

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CNB Loan

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

CNB Loan

G.CNB Loan

On December 31, 2016, MtronPTI renewed its Loan Agreement (the "CNB Loan Agreement") with City National Bank of Florida ("City National"). The CNB Loan Agreement provides for a revolving line of credit in the amount of $3.0 million (the "CNB Revolver"), which bears interest at a variable rate equal to 30-day LIBOR plus 200 basis points to be set on the first day of each month, and expires on September 30, 2018. The CNB Loan Agreement also provides that MtronPTI will pay City National a fee equal to 0.75% per year on the daily unused amount. The Company's obligations under the CNB Loan Agreement are secured only by cash collateral and do not require any other liens.

At December 31, 2017 and December 31, 2016, there was no balance outstanding under the CNB Revolver and no associated restricted cash.

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Stockholders' Equity

12 Months Ended

Dec. 31, 2017

Stockholders Equity Note [Abstract]

Stockholders' Equity

H.Stockholders' Equity

Share Repurchase Program

On August 29, 2011, the Board authorized the Company to repurchase up to 100,000 shares of its common stock in accordance with applicable securities laws. This authorization increased the total number of shares authorized and available for repurchase under the Company's existing share repurchase program to 540,000 shares, at such times, amounts and prices as the Company shall deem appropriate. As of December 31, 2017, the Company had repurchased a total of 81,584 shares of common stock at a cost of $580,000, which shares are currently held in treasury.

Rights Offering

Pursuant to a Registration Statement on Form S-1 (Registration No. 333-218901) under the Securities Act of 1933, as amended (the "Securities Act"), and declared effective by the SEC on September 5, 2017, the Company distributed, at no charge, to the holders of the Company’s common stock, as of September 5, 2017 three transferable subscription rights for each share of common stock then owned (the “Rights Offering”). Each subscription right entitled the holder to purchase one-fourth of a share of common stock at a subscription price of $5.50 per whole share of common stock.

The Rights Offering also included an over-subscription right, which entitled a stockholder who exercised all of their basic subscription rights in full the right to purchase additional shares of common stock that remain unsubscribed at the expiration of the Rights Offering, subject to availability, at the same $5.50 per whole share subscription price.

The Company raised total gross proceeds of approximately $11,036,000, and incurred issuance costs of $242,000, which were deducted from the gross proceeds. The Company offered an aggregate of up to 2,006,598 shares of its common stock to its existing shareholders and received subscriptions for a total of 2,897,171 shares of its common stock, including 686,439 shares issued pro rata to shareholders who properly exercised over-subscription rights.

The Company estimated the fair value of the subscription rights using the Black-Scholes-Merton option-pricing model. The Black-Scholes-Merton pricing model requires subjective assumptions, including future stock price volatility and expected time to exercise, which greatly affect the calculated values. There is no expected dividend rate. Historical Company information was the basis for expected volatility assumption. The risk-free interest rate is based on the U.S. Treasury zero-coupon rates with a remaining term comparable to the expected term of the subscription rights. The Company estimated the fair value of the subscription rights to be approximately $10,000 at the time of original issuance. The Company then revalued the subscription rights on October 5, 2017 and October 25, 2017 at each time the rights offering was extended, and concluded that the incremental estimated fair value was de minimis. Because retained earnings are in a deficit position for the year ending December 31, 2017, this has been recorded as a debit and credit to additional paid in capital with no net impact.

Warrants

On August 6, 2013, the Company distributed 12,981,025 warrants to purchase shares of the Company's common stock as a dividend to holders of the Company's common stock on July 29, 2013, the record date for the dividend. Stockholders received five warrants for each share of the Company's common stock owned on the record date. When exercisable, 25 warrants will entitle their holder to purchase one share of the Company's common stock at an exercise price of $7.50 per share (subject to adjustment).

The warrants are "European style warrants" and will only become exercisable on the earlier of (i) their expiration date, August 6, 2018, and (ii) such date that the 30-day volume weighted average price per share, or VWAP, of the Company's common stock is greater than or equal to $15.00 (subject to adjustment). Once the warrants become exercisable, they may be exercised in accordance with the terms of the warrant agreement between the Company and the warrant agent until their expiration at 5:00 p.m., Eastern Time, on the expiration date.

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Fair Value Measurements

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Fair Value Measurements

I.Fair Value Measurements

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value guidance identifies three primary valuation techniques: the market approach, the income approach and the cost approach. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. The income approach uses valuation techniques to convert future amounts such as cash flows or earnings, to a single present amount. The measurement is based on the value indicated by current market expectations about those future amounts. The cost approach is based on the amount that currently would be required to replace the service capacity of an asset.

The fair value hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The fair value hierarchy gives the highest priority to observable inputs such as quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The maximization of observable inputs and the minimization of the use of unobservable inputs are required.

Classification within the fair value hierarchy is based upon the objectivity of the inputs that are significant to the valuation of an asset or liability as of the measurement date. The three levels within the fair value hierarchy are characterized as follows:

Level 1 - Quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date.

Level 2 - Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs include: quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in markets that are not active; inputs other than quoted prices that are observable for the asset or liability; and inputs that are derived principally from or corroborated by observable market data by correlation or other means.

Level 3 - Unobservable inputs for the asset or liability for which there is little, if any, market activity for the asset or liability at the measurement date. Unobservable inputs reflect the Company's own assumptions about what market participants would use to price the asset or liability. These inputs may include internally developed pricing models, discounted cash flow methodologies, as well as instruments for which the fair value determination requires significant management judgment.

Assets

To estimate the market value of its marketable securities, the Company obtains current market pricing from quoted market sources or uses pricing for identical securities. Assets measured at fair value on a recurring basis are summarized below.

(in thousands)	Level 1		Level 2		Level 3		Total December 31, 2017
Marketable Securities (equity securities)	$	3,803	$	—	$	—	$	3,803
U.S. Treasury securities (cash equivalents)	$	11,866	$	—	$	—	$	11,866

(in thousands)	(Level 1)		(Level 2)		(Level 3)		Total December 31, 2016
Marketable Securities (equity securities)	$	2,770	$	—	$	—	$	2,770
U.S. Treasury securities (cash equivalents)	$	1,002	$	—	$	—	$	1,002

There were no transfers to or from level 2 to level 3 during the reporting period. The Company also has assets that may be subject to measurement at fair value on a non-recurring basis, including goodwill and intangible assets, and other long-lived assets. There were no liabilities subject to fair value on a non-recurring or recurring basis as of December 31, 2017 or 2016.

The Company reviews goodwill annually and the carrying value of long-lived assets whenever events and circumstances indicate that the carrying amounts of the assets may not be recoverable. If it is determined that the assets are impaired, the carrying value would be reduced to estimated recoverable value.

During the fourth quarter of 2017, the Company determined that its note receivable included within “Other assets” in the financial statements was impaired, and wrote the balance down by $102,000 to its net recoverable value of $101,000.

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Employee Benefit Plans

12 Months Ended

Dec. 31, 2017

Compensation And Retirement Disclosure [Abstract]

Employee Benefit Plans

J. Employee Benefit Plans

The Company offers a defined contribution plan for eligible employees, in which the Company makes discretionary contributions up to 50% of the first 6% of eligible compensation contributed by participants. The Company contributed approximately $116,000 and $107,000 in discretionary contributions during 2017 and 2016, respectively. Participants vest in employer contributions starting after their second year of service at 20% increments, vesting 100% in year six.

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Commitments and Contingencies

12 Months Ended

Dec. 31, 2017

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

K.Commitments and Contingencies

In the normal course of business, the Company and its subsidiaries may become defendants in certain product liability, patent infringement, worker claims and other litigation. The Company records a liability when it is probable that a loss has been incurred and the amount is reasonably estimable. The Company is not involved in any legal proceedings other than routine litigation arising in the normal course of business, none of which the Company believes will have a material adverse effect on the Company's business, financial condition or results of operations.

Rent Expense

Rent expense under operating leases was $285,000 and $249,000 for the years ended December 31, 2017 and 2016, respectively. The Company leases certain property and equipment, including warehousing, and sales and distribution equipment, under operating leases that extend from one to two years. Certain of these leases have renewal options.

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Segment Information

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Segment Information

L.Segment Information

The Company has identified two reportable business segments from operations: electronic components, which includes all products manufactured and sold by MtronPTI, and electronic instruments, which includes all products manufactured and sold by PTF. The Company's foreign operations in Hong Kong and India exist under MtronPTI.

Operating income (loss) is equal to revenues less cost of sales and operating expenses, excluding investment income, interest expense, and income taxes. Identifiable assets of the segment are those used in its operations and exclude general corporate assets. General corporate assets are principally cash and cash equivalents, short-term investments and certain other investments and receivables.

	Years Ended December 31,
	2017			2016
	(in thousands)
Revenues from Operations
Electronic components	$	21,516		$	20,691
Electronic instruments		886			200
Total consolidated revenues	$	22,402		$	20,891
Operating Income (Loss) from Operations
Electronic components	$	1,260		$	1,011
Electronic instruments		56			(61	)
Unallocated corporate expense		(1,040	)		(1,111	)
Consolidated total operating income (loss)		276			(161	)
Interest expense, net		(11	)		(22	)
Other (expense) income, net		(46	)		166
Total other (expense) income		(57	)		144
Income (loss) Before Income Taxes	$	219		$	(17	)
Capital Expenditures
Electronic components	$	131		$	162
Electronic instruments		—			—
General corporate		—			10
Total capital expenditures	$	131		$	172
Total Assets
Electronic components	$	11,899		$	9,015
Electronic instruments		811			531
General corporate		14,845			7,100
Consolidated total assets	$	27,555		$	16,646

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Domestic and Foreign Revenues

12 Months Ended

Dec. 31, 2017

Revenues [Abstract]

Domestic and Foreign Revenues

M.Domestic and Foreign Revenues

For the years ended December 31, 2017 and 2016, domestic revenues were $16,090,000 and $14,893,000, respectively, and foreign revenues were $6,313,000 and $5,998,000, respectively. Significant foreign revenues from operations (10% or more of foreign sales) were as follows:

	Years Ended December 31,
	2017		2016
	(in thousands)
Malaysia	$	3,038	$	3,240
All other foreign countries		3,275		2,758
Total foreign revenues	$	6,313	$	5,998

The Company allocates its foreign revenue based on the customer's ship-to location.

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Accounting And Reporting Policies (Policies)

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Organization

Organization

The LGL Group, Inc. (the "Company"), incorporated in 1928 under the laws of the State of Indiana and reincorporated under the laws of the State of Delaware in 2007, is a holding company with subsidiaries engaged in the design, manufacturing and marketing of highly-engineered, high reliability frequency and spectrum control products used to control the frequency or timing of signals in electronic circuits and in the design of high performance Frequency and Time Reference Standards that form the basis for timing and synchronization in various applications.

As of December 31, 2017, the subsidiaries of the Company are as follows:

	Owned By The LGL Group, Inc.
M-tron Industries, Inc.		100.0	%
Piezo Technology, Inc.		100.0	%
Piezo Technology India Private Ltd.		99.0	%
M-tron Asia, LLC		100.0	%
M-tron Industries, Ltd.		100.0	%
GC Opportunities Ltd.		100.0	%
M-tron Services, Ltd.		100.0	%
Precise Time and Frequency, LLC		100.0	%
Lynch Systems, Inc.		100.0	%

The Company operates through its two principal subsidiaries, M-tron Industries, Inc. ("MtronPTI"), which includes the operations of Piezo Technology, Inc. ("PTI") and M-tron Asia, LLC ("Mtron"), and Precise Time and Frequency, LLC ("PTF"), a newly formed subsidiary in 2016, to hold the assets of Precise Time and Frequency, Inc., as discussed in Note B below. The Company has operations in Orlando, Florida, Yankton, South Dakota, Wakefield, Massachusetts and Noida, India. MtronPTI also has sales offices in Sacramento, California, Austin, Texas and Hong Kong.

Principles of Consolidation

Principles of Consolidation

The consolidated financial statements include the accounts of the Company and entities for which it has control. Material intercompany transactions and accounts have been eliminated in consolidation.

Uses of Estimates

Uses of Estimates

The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.

Cash and Cash Equivalents

Cash and Cash Equivalents

Cash and cash equivalents consist of highly-liquid investments with a maturity of less than three months when purchased.

Marketable Securities

Marketable Securities

Marketable debt and equity securities are categorized as available for-sale-securities and are reported at fair value. Unrealized gains and losses related to changes in the fair value of available-for-sale securities are recognized in accumulated other comprehensive income (loss) within stockholders' equity.

Accounts Receivable

Accounts Receivable

Accounts receivable, on a consolidated basis, consists principally of amounts due from both domestic and foreign customers. Credit is extended based on an evaluation of the customer's financial condition and collateral is not required. In relation to export sales, the Company requires letters of credit supporting a significant portion of the sales price prior to production to limit exposure to credit risk. Certain credit sales are made to industries that are subject to cyclical economic changes. 

The Company maintains allowances for doubtful accounts for estimated losses resulting from the inability of its customers to make required payments. These allowances are maintained at a level that management believes is sufficient to cover potential credit losses. Estimates are based on historical collection experience, current trends, credit policy and the relationship between accounts receivable and revenues. In determining these estimates, the Company examines historical write-offs of its receivables and reviews each customer's account to identify any specific customer collection issues. If the financial condition of its customers were to deteriorate, resulting in an impairment of their ability to make payment, additional allowances might be required. 

Inventories

Inventories

Inventories are valued at the lower of cost or net realizable value using the FIFO (first-in, first-out) method.

The Company maintains a reserve for inventory based on estimated losses that result from inventory that becomes obsolete or for which the Company has excess inventory levels as of period end. In determining these estimates, the Company performs an analysis on current demand and usage for each inventory item over historical time periods. Based on that analysis, the Company reserves a percentage of the inventory amount within each time period based on historical demand and usage patterns of specific items in inventory.

Property, Plant and Equipment, Net

Property, Plant and Equipment, Net

Property, plant and equipment are recorded at cost less accumulated depreciation and include expenditures for major improvements. Maintenance and repairs are charged to operations as incurred. Depreciation is computed for financial reporting purposes using the straight-line method over the estimated useful lives of the assets, which range from 5 years to 35 years for buildings and improvements, and from 3 to 10 years for other fixed assets. Property, plant and equipment are periodically reviewed for indicators of impairment. If any such indicators were noted, the Company would assess the appropriateness of the assets' carrying value and record any impairment at that time.

Depreciation expense from operations was approximately $567,000 for 2017 and $704,000 for 2016.

Warranties

Warranties

The Company offers a standard one-year warranty. The Company tests its products prior to shipment in order to ensure that they meet each customer's requirements based upon specifications received from each customer at the time its order is received and accepted. The Company's customers may request to return products for various reasons, including, but not limited to, the customers' belief that the products are not performing to specification. The Company's return policy states that it will accept product returns only with prior authorization and if the product does not meet customer specifications, in which case the product would be replaced or repaired. To accommodate the Company's customers, each request for return is reviewed, and if and when it is approved, a return materials authorization ("RMA") is issued to the customer.

Each month, the Company records a specific warranty reserve for approved RMAs covering products that have not yet been returned. The Company does not maintain a general warranty reserve because, historically, valid warranty returns resulting from a product not meeting specifications or being non-functional have been de minimis. As of December 31, 2017 and 2016, accrued warranty expense was $10,000 and $80,000, respectively, and is included within other accrued expenses in the accompanying consolidated balance sheets.

Intangible Assets

Intangible Assets

Intangible assets are recorded at cost less accumulated amortization. Amortization is computed for financial reporting purposes using the straight-line method over the estimated useful lives of the assets, which range up to 10 years. The intangible assets consist of intellectual property and goodwill. The net carrying value of the amortizable intangible assets was $512,000 and $588,000 as of December 31, 2017 and 2016, respectively. Goodwill, which is not amortizable, was $40,000 as of December 31, 2017 and 2016.

The estimated aggregate amortization expense for intangible assets, excluding goodwill, for each of the remaining years of the estimated useful life is as follows (in thousands):

2018	$	75
2019		75
2020		75
2021		75
2022		75
Thereafter		137
Total	$	512

Revenue Recognition

Revenue Recognition

The Company recognizes revenue from the sale of its products in accordance with the criteria in Accounting Standards Codification ("ASC") 605, Revenue Recognition, which are:

• persuasive evidence that an arrangement exists;

• delivery has occurred;

• the seller's price to the buyer is fixed and determinable; and

• collectability is reasonably assured.

The Company meets these conditions upon shipment because title and risk of loss passes to the customer at that time. However, the Company offers a limited right of return and/or authorized price protection provisions in its agreements with certain electronic component distributors who resell the Company's products to original equipment manufacturers or electronic manufacturing services companies. As a result, the Company estimates and records a reserve for future returns and other charges against revenue at the time of shipment consistent with the terms of sale. The reserve is estimated based on historical experience with each respective distributor.

The Company recognizes revenue related to transactions with a right of return and/or authorized price protection provisions when the following conditions are met:

• seller's price to the buyer is fixed or determinable at the date of sale;

• buyer has paid the seller, or the buyer is obligated to pay the seller and the obligation is not contingent on resale of the product;

• buyer's obligation to the seller would not be changed in the event of theft or physical destruction or damage of the product;

• buyer acquiring the product for resale has economic substance apart from that provided by the seller;

• seller does not have obligations for future performance; and

• the amount of future returns can be reasonably estimated.

Shipping Costs

Shipping Costs

Amounts billed to customers related to shipping and handling are classified as revenue, and the Company's shipping and handling costs are included in manufacturing cost of sales.

Research and Development Costs

Research and Development Costs

Research and development costs are charged to operations as incurred. Such costs were approximately $1,827,000 and $1,906,000 in 2017 and 2016, respectively, and are included within engineering, selling and administrative expenses.

Advertising Expense

Advertising Expense

Advertising costs are charged to operations as incurred. Such costs were approximately $18,000 in 2017, compared with $50,000 in 2016, and are included within engineering, selling and administrative expenses.

Stock-Based Compensation

Stock-Based Compensation

The Company measures the cost of employee services in exchange for an award of equity instruments based on the grant-date fair value of the award and recognizes the cost over the requisite service period, typically the vesting period.

The Company estimates the fair value of stock options on the grant date using the Black-Scholes-Merton option-pricing model. The Black-Scholes-Merton option-pricing model requires subjective assumptions, including future stock price volatility and expected time to exercise, which greatly affect the calculated values. There is no expected dividend rate. Historical Company information was the basis for the expected volatility assumption as the Company believes that the historical volatility over the life of the option is indicative of expected volatility in the future. The risk-free interest rate is based on the U.S. Treasury zero-coupon rates with a remaining term equal to the expected term of the option. The Company records any forfeitures in the period that the shares are forfeited.

Restricted stock awards are made at a value equal to the market price of the Company's common stock on the date of the grant.

Earnings Per Share

Earnings Per Share

The Company computes earnings per share in accordance with ASC 260, Earnings Per Share. Basic earnings per share is computed by dividing net earnings by the weighted average number of common shares outstanding during the period. Diluted earnings per share adjusts basic earnings per share for the effects of stock options and other potentially dilutive financial instruments, only in the periods in which the effects are dilutive.

For the years ended December 31, 2017 and 2016, there were options to purchase 42,676 shares and 166,996 shares, respectively, of common stock and warrants to purchase 519,241 shares of common stock that were excluded from the diluted earnings per share computation because the impact of the assumed exercise of such stock options or warrants would have been anti-dilutive.

	Years Ended December 31,
	2017		2016
Weighted average shares outstanding - basic		2,929,641		2,665,043
Effect of diluted securities		105,463		687
Weighted average shares outstanding - diluted		3,035,104		2,665,730

Income Taxes

Income Taxes

The Company's deferred income tax assets represent (a) temporary differences between the financial statement carrying amount and the tax basis of existing assets and liabilities that will result in deductible amounts in future years, and (b) the tax effects of net operating loss carry-forwards. In assessing the realizability of deferred tax assets in accordance with the provisions of ASC 740, Income Taxes, the Company considers whether it is more likely than not that some portion or all of the deferred tax assets will or will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become realizable.

The Company has determined the results of future operations of one of its foreign subsidiaries will generate enough taxable income that it is more likely than not that deferred tax assets of $173,000 generated from net operating losses (“NOL’s”) in a foreign subsidiary, can be utilized in the foreseeable future. The Company has also determined that a full valuation against the remaining net deferred tax assets is required and has recorded a valuation allowance to reduce deferred tax assets to the amount that is more likely than not to be realized. Should a change in circumstances lead to a change in judgment about the ability to realize deferred tax assets in future years, the Company will adjust related valuation allowances in the period that the change in circumstances occurs, along with a corresponding increase or charge to income. The Company recognizes interest and/or penalties, if any, related to income tax matters in income tax expense. 

Concentration Risk

Concentration Risk

In 2017, the Company's largest customer, an electronics contract manufacturing company in the aerospace and defense markets, accounted for $3,744,000, or 16.7% of the Company's total revenues, compared to $3,275,000, or 15.7%, in 2016.

A significant portion of the Company's accounts receivable is concentrated with a relatively small number of customers. As of December 31, 2017, four of the Company's largest customers accounted for approximately $1,100,000, or 32.0% of accounts receivable. As of December 31, 2016, four of the Company's largest customers accounted for approximately $1,242,000, or 35.1% of accounts receivable. The Company carefully evaluates the creditworthiness of its customers in deciding to extend credit, and utilizes letters of credit to further limit credit risk for export sales. As a result of these policies, the Company has experienced very low historical bad debt expense and believes the related risk to be minimal.

At various times throughout the year and at December 31, 2017, some deposits held at financial institutions were in excess of federally insured limits. The Company has not experienced any losses related to these balances and believes the related risk to be minimal.

Segment Information

Segment Information

The Company reports segment information in accordance with ASC 280, Segment Information ("ASC 280"). ASC 280 requires companies to report financial and descriptive information for each identified operating segment based on management's internal organizational decision-making structure. Management has identified the Company’s two segments as electronic components and electronic instruments.

Impairments of Long-Lived Assets

Impairments of Long-Lived Assets

Long-lived assets, including intangible assets subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. Long-lived assets are grouped with other assets to the lowest level to which identifiable cash flows are largely independent of the cash flows of other groups of assets and liabilities. Management assesses the recoverability of the carrying cost of the assets based on a review of projected undiscounted cash flows. If an asset is held for sale, management reviews its estimated fair value less cost to sell. Fair value is determined using pertinent market information, including appraisals or broker's estimates, and/or projected discounted cash flows. In the event an impairment loss is identified, it is recognized based on the amount by which the carrying value exceeds the estimated fair value of the long-lived asset.

Financial Instruments

Financial Instruments

Cash and cash equivalents, trade accounts receivable, short-term borrowings, trade accounts payable, and accrued expenses are carried at cost, which approximates fair value due to the short-term maturity of these instruments.

Foreign Currency Translation

Foreign Currency Translation

The assets and liabilities of international operations are re-measured at the exchange rates in effect at the balance sheet date for monetary assets and liabilities and at historical rates for non-monetary assets and liabilities, with the related re-measurement gains or losses reported within the consolidated statement of operations. The results of international operations are re-measured at the monthly average exchange rates. The Company's foreign subsidiaries and respective operations' functional currency is the U.S. dollar. The Company has determined this based upon the majority of transactions with customers as well as inter-company transactions and parental support being based in U.S. dollars. The Company has recognized a re-measurement gain of $22,000 and a re-measurement loss of $(2,000), in 2017 and 2016, respectively, which is included within other income, net in the consolidated statements of operations.

Recently Issued Accounting Pronouncements

Recently Issued Accounting Pronouncements

In January 2017, the Financial Accounting Standards Board (the "FASB") issued ASU 2017-04, "Intangibles – Goodwill and Other – (Topic 350): Simplifying the Test for Goodwill Impairment". ASU 2017-04 simplifies the accounting for goodwill impairment by removing the requirement to calculate the implied fair value. Instead, it requires that an entity records an impairment charge based on the excess of a reporting unit's carrying amount over its fair value. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. ASU 2016-15 is effective for fiscal years, and for interim periods within those years, beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company implemented this ASU 2017-04 during the fourth quarter and effective for its fiscal year ended December 31, 2017, on a prospective basis.

In August 2016, the FASB issued ASU 2016-15, "Statement of Cash Flows – (Topic 230): Classification of Certain Cash Receipts and Cash Payments". ASU 2016-15 addresses eight specific cash flow issues with the objective of reducing the existing diversity in practice. ASU 2016-15 is effective for fiscal years, and for interim periods within those years, beginning after December 15, 2017. Early application is permitted. The Company implemented this ASU 2016-15 effective for its fiscal year ended December 31, 2017, using the retrospective transition method to each period presented. No changes were required as none of the eight specific cash flow issues addressed by ASU 2016-15 were applicable to the Company for the periods presented.

In March 2016, the FASB issued ASU 2016-09, "Compensation – Stock Compensation (Topic 718): Improvements to Employee Share–Based Payment Accounting". ASU 2016-09 simplifies the accounting for share–based payment award transactions including: income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. ASU 2016-09 is effective for fiscal years beginning after December 15, 2016. The Company implemented the requirements of ASU 2016-09 effective for its fiscal year ended December 31, 2017, with no impact to the financial statements, as there were no prior transactions to which the modified retrospective transition method by means of a cumulative-effect adjustment to equity would have applied.

In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)". The objective of this update is to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those annual periods and is to be applied utilizing a modified retrospective approach. The Company does not expect the adoption of ASU 2016-02 to have a material impact on its consolidated financial statements because there are no material operating leases.

In January 2016, the FASB issued ASU 2016-01, "Financial Instruments – Recognition and Measurement of Financial Assets and Financial Liabilities (Topic 825)". ASU 2016-01 revises the classification and measurement of investments in certain equity investments and the presentation of certain fair value changes for certain financial liabilities measured at fair value. ASU 2016-01 requires the change in fair value of many equity investments to be recognized in net income. ASU 2016-01 is effective for interim and annual periods beginning after December 15, 2017, with early adoption permitted. Adopting ASU 2016-01 will result in a cumulative effect adjustment to the Company's retained earnings as of the beginning of the year of adoption. The Company is currently evaluating the potential effects of adopting the provisions of ASU 2016-01.

In November 2015, the FASB issued ASU 2015-17 "Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes", which simplifies the presentation of deferred income taxes. Under the new accounting standard, deferred tax assets and liabilities are required to be classified as noncurrent, eliminating the prior requirement to separate deferred tax assets and liabilities into current and noncurrent. The new guidance is effective for financial statements issued for annual periods beginning after December 15, 2016, and interim periods within those annual periods, with early adoption permitted. The standard may be adopted prospectively or retrospectively to all periods presented. The Company adopted this guidance effective for its fiscal year ended December 31, 2017, on a retrospective basis, with only a limited effect on its balance sheet classification and disclosures.

In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330): “Simplifying the Measurement of Inventory”, which changes the measurement principle for inventory from the lower of cost or market to the lower of cost and net realizable value. ASU 2015-11 defines net realizable value as estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. The new guidance must be applied on a prospective basis. The Company adopted ASU 2015-11 effective January 1, 2017. The adoption of this guidance did not have a material impact on our consolidated financial statements.

In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers", also known as the "New Revenue Standard". This update is the result of a collaborative effort by the FASB and the International Accounting Standards Board to simplify revenue recognition guidance, remove inconsistencies in the application of revenue recognition, and to improve comparability of revenue recognition practices across entities, industries, jurisdictions, and capital markets. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to receive for those goods or services. The New Revenue Standard is applied through the following five-step process:

1. Identify the contract(s) with a customer.

2. Identify the performance obligation in the contract.

3. Determine the transaction price.

4. Allocate the transaction price to the performance obligations in the contract.

5. Recognize revenue when (or as) the entity satisfies a performance obligation.

For a public entity, this update is effective for annual and interim reporting periods beginning after December 15, 2017 with early adoption permitted. This standard can be applied on either a retrospective or modified retrospective approach. Since May, 2014, a number of ASU's have been issued which further refine the original guidance issued under ASU 2014-09 and are effective in conjunction with this original standard.

The Company established an implementation approach to assess the impact of the new revenue guidance on its operations, consolidated financial statements and related disclosures. This assessment included (1) performing contract analyses for each revenue stream identified, (2) assessing the noted differences in recognition and measurement that may result from adopting this new standard, (3) performing detailed analyses of contracts with large customers, and (4) performing transaction level testing for consistency with contract provisions that affect revenue recognition. The Company evaluated the potential impacts of the new standard on its existing revenue recognition policies and procedures during the fiscal year ended December 31, 2017, and determined that the Company’s performance obligations are met at shipping point, with no other material obligations. The Company further determined that returns are immaterial, its warranty terms are consistent, and consignment inventory is accounted for appropriately. The Company also determined that there were no incremental disaggregated revenue disclosures required in our consolidated financial statements. Based on the results of the evaluation, adoption of the new standard will not have a material impact on our consolidated financial statements. The New Revenue Standard became effective for us on January 1, 2018 and was applied on a retrospective basis, with no cumulative effect of adoption to any of the financial statement line items.

No other new accounting pronouncements issued or effective during the fiscal year have had or are expected to have a material impact on the Company's consolidated financial statements.

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Business Combination (Policies)

12 Months Ended

Dec. 31, 2017

Business Combinations [Abstract]

Business Combination

On September 2, 2016, PTF acquired certain assets and assumed certain liabilities of Precise Time and Frequency, Inc. ("PTF Inc.") for cash consideration of $295,000 (the "PTF Acquisition"). The PTF Acquisition was accounted for under the acquisition method of accounting for business combinations pursuant to the provisions of ASC 805, Business Combinations. The acquisition method of accounting requires, among other things, that the assets acquired and liabilities assumed in a business combination be measured at their fair values as of the closing date of the acquisition.

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Accounting And Reporting Policies (Tables)

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Subsidiaries of the Company

As of December 31, 2017, the subsidiaries of the Company are as follows:

	Owned By The LGL Group, Inc.
M-tron Industries, Inc.		100.0	%
Piezo Technology, Inc.		100.0	%
Piezo Technology India Private Ltd.		99.0	%
M-tron Asia, LLC		100.0	%
M-tron Industries, Ltd.		100.0	%
GC Opportunities Ltd.		100.0	%
M-tron Services, Ltd.		100.0	%
Precise Time and Frequency, LLC		100.0	%
Lynch Systems, Inc.		100.0	%

Future Amortization Expense of Finite-Lived Intangible Assets

The estimated aggregate amortization expense for intangible assets, excluding goodwill, for each of the remaining years of the estimated useful life is as follows (in thousands):

2018	$	75
2019		75
2020		75
2021		75
2022		75
Thereafter		137
Total	$	512

Reconciliation of Basic to Diluted Weighted Average Shares Outstanding

	Years Ended December 31,
	2017		2016
Weighted average shares outstanding - basic		2,929,641		2,665,043
Effect of diluted securities		105,463		687
Weighted average shares outstanding - diluted		3,035,104		2,665,730

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Business Combination (Tables)

12 Months Ended

Dec. 31, 2017

Business Combinations [Abstract]

Estimated Fair Values of Assets Acquired and Liabilities Assumed

The following is a summary of the preliminary purchase price allocation to the estimated fair values of assets acquired and liabilities assumed in the PTF Acquisition (in thousands):

Purchase consideration	$	295
Net assets acquired:
Current assets		45
Fixed assets		85
Intangible assets		214
Current liabilities		(45	)
Net assets acquired	$	299
Bargain purchase gain	$	(4	)

Certain Unaudited Pro Forma Information

The following table sets forth certain unaudited pro forma information for the year ended December 31, 2016  assuming that the PTF Acquisition occurred prior to January 1, 2016 (in thousands, except per share data):

	Year Ended December 31, 2016
	Historical		Pro Forma Adjustments		Pro Forma
Revenue	$	21,129	$	—	$	21,129
Net income	$	136	$	25	$	161
Basic net income per share	$	0.05	$	0.01	$	0.06
Diluted net income per share	$	0.05	$	0.01	$	0.06

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Inventories (Tables)

12 Months Ended

Dec. 31, 2017

Inventory Disclosure [Abstract]

Schedule of inventories

	December 31,
	2017		2016
	(in thousands)
Raw materials	$	1,526	$	1,408
Work in process		1,337		1,306
Finished goods		1,012		924
Total Inventories, net	$	3,875	$	3,638

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Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2017

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of inputs to option valuation model for options granted

The following table summarizes the inputs to the option valuation model for the options granted during the years ended December 31, 2017 and 2016:

	2017	2016
Expected volatility	27%	31%
Dividend rate	0%	0%
Expected term (in years)	3.55	3.25 – 3.55
Risk-free rate	2.01%	0.92% – 1.49%

Information about stock options outstanding and exercisable

The following table summarizes information about stock options outstanding and exercisable at December 31, 2017:

	Number of Shares Outstanding			Weighted Average Exercise Price		Weighted Average Grant Date Fair Value		Weighted Average Remaining Term (in years)		Aggregate Intrinsic Value (in thousands)
Option Balances at December 31, 2016		176,344		$	4.90	$	1.31	3.4		$	78
Options Granted		9,541			6.09		1.05
Options Exercised		—			—		—
Options Forfeited		(4,500	)		4.01		0.96
Options Expired		—			—		—
Option Balances at December 31, 2017		181,385		$	4.98	$	1.30		2.4	$	158
Options Exercisable at December 31, 2017		128,692		$	5.04	$	1.41		1.9	$	113

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Tax effects of temporary differences and carry-forwards

Income tax provision (benefit) for the years ended December 31, 2017 and 2016 is as follows:

	2017			2016
	(in thousands)
Current:
Federal	$	—		$	—
State and local		18			8
Foreign		43			41
Total Current		61			49
Deferred:
Federal		1,637			(211	)
State and local		42			267
Foreign		41			55
Total before change in valuation allowance		1,720			111
Change in Valuation Allowance		(1,679	)		(325	)
Net Deferred		41			(214	)
Income tax provision (benefit)	$	102		$	(165	)

Provision (benefit) for income taxes

A reconciliation of the provision (benefit) for income taxes and the amount computed by applying the statutory federal income tax rate to income before income taxes is detailed below:

	2017			2016
	(in thousands)
Tax provision (benefit) at expected statutory rate	$	75		$	(8	)
State taxes, net of federal benefit		81			(25	)
Permanent differences		450			6
Credits		(106	)		(123	)
Foreign tax expense, and other		(381	)		11
True-up to State NOL		—			299
Change in rate		1,662			—
Change in valuation allowance		(1,679	)		(325	)
Provision (benefit) for income taxes	$	102		$	(165	)

Reconciliation of provision (benefit) for income taxes

Deferred income taxes for 2017 and 2016 were provided for the temporary differences between the financial reporting basis and the tax basis of the Company's assets and liabilities. Tax effects of temporary differences and carry-forwards at December 31, 2017 and 2016 were as follows:

	December 31, 2017					December 31, 2016
	Deferred Tax					Deferred Tax
	Asset			Liability		Asset			Liability
	(in thousands)
Inventory reserve	$	325		$	—	$	1,083		$	—
Fixed assets		—			141		—			151
Other reserves and accruals		133			—		213			—
Stock-based compensation		18			—		384			—
Undistributed foreign earnings		—			—		—			144
Other		—			29		—			56
Tax credit carry-forwards		2,284			—		1,921			—
Federal tax loss carry-forwards		2,380			—		3,428			—
State tax loss carry-forwards		657			—		627			—
Foreign tax loss carry-forwards		173			—		214			—
Total deferred income taxes		5,970		$	170		7,870		$	351
Valuation allowance		(5,627	)				(7,305	)
Net deferred tax assets	$	173				$	214

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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Assets measured at fair value on recurring basis

Assets measured at fair value on a recurring basis are summarized below.

(in thousands)	Level 1		Level 2		Level 3		Total December 31, 2017
Marketable Securities (equity securities)	$	3,803	$	—	$	—	$	3,803
U.S. Treasury securities (cash equivalents)	$	11,866	$	—	$	—	$	11,866

(in thousands)	(Level 1)		(Level 2)		(Level 3)		Total December 31, 2016
Marketable Securities (equity securities)	$	2,770	$	—	$	—	$	2,770
U.S. Treasury securities (cash equivalents)	$	1,002	$	—	$	—	$	1,002

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Segment Information (Tables)

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Operating income (loss)

	Years Ended December 31,
	2017			2016
	(in thousands)
Revenues from Operations
Electronic components	$	21,516		$	20,691
Electronic instruments		886			200
Total consolidated revenues	$	22,402		$	20,891
Operating Income (Loss) from Operations
Electronic components	$	1,260		$	1,011
Electronic instruments		56			(61	)
Unallocated corporate expense		(1,040	)		(1,111	)
Consolidated total operating income (loss)		276			(161	)
Interest expense, net		(11	)		(22	)
Other (expense) income, net		(46	)		166
Total other (expense) income		(57	)		144
Income (loss) Before Income Taxes	$	219		$	(17	)
Capital Expenditures
Electronic components	$	131		$	162
Electronic instruments		—			—
General corporate		—			10
Total capital expenditures	$	131		$	172
Total Assets
Electronic components	$	11,899		$	9,015
Electronic instruments		811			531
General corporate		14,845			7,100
Consolidated total assets	$	27,555		$	16,646

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Domestic and Foreign Revenues (Tables)

12 Months Ended

Dec. 31, 2017

Revenues [Abstract]

Significant foreign revenues from operations

For the years ended December 31, 2017 and 2016, domestic revenues were $16,090,000 and $14,893,000, respectively, and foreign revenues were $6,313,000 and $5,998,000, respectively. Significant foreign revenues from operations (10% or more of foreign sales) were as follows:

	Years Ended December 31,
	2017		2016
	(in thousands)
Malaysia	$	3,038	$	3,240
All other foreign countries		3,275		2,758
Total foreign revenues	$	6,313	$	5,998

The Company allocates its foreign revenue based on the customer's ship-to location.

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Accounting And Reporting Policies (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($) Customer Segment shares	Dec. 31, 2016 USD ($) Customer shares
Property, Plant and Equipment, Net [Abstract]
Depreciation expense	$ 567	$ 704
Standard Product Warranty Disclosure [Abstract]
Term of warranty	1 year
Accrued Warranty Expense	$ 10	80
Intangible Assets [Abstract]
Intangible assets carrying value	512	588
Goodwill	40	40
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2018	75
2019	75
2020	75
2021	75
2022	75
Thereafter	137
Total	512	588
Research and Development Costs [Abstract]
Research and development costs	1,827	1,906
Advertising Expense [Abstract]
Advertising costs	$ 18	$ 50
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted average shares outstanding - basic | shares	2,929,641	2,665,043
Effect of diluted securities | shares	105,463	687
Weighted average shares outstanding - diluted | shares	3,035,104	2,665,730
Income Taxes [Abstract]
Deferred tax assets	$ 173	$ 214
Concentration Risk [Line Items]
Revenue concentration greater than 10%	$ 22,402	20,891
Segment Reporting Information [Line Items]
Number of identified reportable segments | Segment	2
Foreign Currency Translation [Abstract]
Re-measurement loss	$ 22	(2)
Revenues [Member] | Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Revenue concentration greater than 10%	$ 3,744	$ 3,275
Concentration risk, percentage	16.70%	15.70%
Accounts Receivable [Member] | Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	32.00%	35.10%
Accounts receivable	$ 1,100	$ 1,242
Number of large customers | Customer	4	4
Foreign NOLs [Member]
Income Taxes [Abstract]
Deferred tax assets	$ 173
Options [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Securities excluded from the diluted earnings per share computation (in shares) | shares	42,676	166,996
Warrant [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Securities excluded from the diluted earnings per share computation (in shares) | shares	519,241	519,241
Maximum [Member]
Intangible Assets [Abstract]
Estimated useful life of intangible assets	10 years
Buildings and Improvements [Member] | Minimum [Member]
Property, Plant and Equipment, Net [Abstract]
Property, Plant and Equipment, Useful Life	5 years
Buildings and Improvements [Member] | Maximum [Member]
Property, Plant and Equipment, Net [Abstract]
Property, Plant and Equipment, Useful Life	35 years
Other Fixed Assets [Member] | Minimum [Member]
Property, Plant and Equipment, Net [Abstract]
Property, Plant and Equipment, Useful Life	3 years
Other Fixed Assets [Member] | Maximum [Member]
Property, Plant and Equipment, Net [Abstract]
Property, Plant and Equipment, Useful Life	10 years
M-tron Industries, Inc. [Member]
Subsidiaries of the entity, by ownership percentage [Abstract]
Owned by The LGL Group, Inc.	100.00%
Piezo Technology, Inc. [Member]
Subsidiaries of the entity, by ownership percentage [Abstract]
Owned by The LGL Group, Inc.	100.00%
Piezo Technology India Private Ltd. [Member]
Subsidiaries of the entity, by ownership percentage [Abstract]
Owned by The LGL Group, Inc.	99.00%
M-tron Asia LLC [Member]
Subsidiaries of the entity, by ownership percentage [Abstract]
Owned by The LGL Group, Inc.	100.00%
M-tron Industries, Ltd. [Member]
Subsidiaries of the entity, by ownership percentage [Abstract]
Owned by The LGL Group, Inc.	100.00%
GC Opportunities Ltd. [Member]
Subsidiaries of the entity, by ownership percentage [Abstract]
Owned by The LGL Group, Inc.	100.00%
M-tron Services Ltd [Member]
Subsidiaries of the entity, by ownership percentage [Abstract]
Owned by The LGL Group, Inc.	100.00%
Precise Time and Frequenc, LLC [Member]
Subsidiaries of the entity, by ownership percentage [Abstract]
Owned by The LGL Group, Inc.	100.00%
Lynch Systems, Inc. [Member]
Subsidiaries of the entity, by ownership percentage [Abstract]
Owned by The LGL Group, Inc.	100.00%

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Business Combination (Details) - USD ($)		12 Months Ended
	Sep. 02, 2016	Dec. 31, 2017	Dec. 31, 2016
PTF Acquisition [Abstract]
Date of acquisition	Sep. 02, 2016
Cash consideration paid	$ 295,000		$ 295,000
Weighted average useful life of acquired intangible assets	10 years
Revenues from operations		$ 22,402,000	20,891,000
Assets Acquired and Liabilities Assumed [Abstract]
Cash consideration paid	$ 295,000		295,000
Net assets acquired:
Current assets	45,000		45,000
Current liabilities	(45,000)
Net assets acquired	299,000
Bargain purchase gain	(4,000)		(4,000)
Income (Loss) [Member]
PTF Acquisition [Abstract]
Loss attributable to acquisition			(57,000)
General and Administrative Expense [Member]
PTF Acquisition [Abstract]
Acquistion costs			38,000
PTF Inc. [Member]
Net assets acquired:
Fixed assets	85,000
Intangible assets	$ 214,000
Historical [Abstract]
Historical revenue			21,129,000
Historical net income (loss)			$ 136,000
Historical basic net income (loss) per share			$ 0.05
Historical diluted net income (loss) per share			$ 0.05
Pro Forma Adjustments [Abstract]
Revenue			$ 0
Net income (loss)			$ 25,000
Basic net income (loss) per share (in dollars per share)			$ 0.01
Diluted net income (loss) per share (in dollars per share)			$ 0.01
Pro Forma [Abstract]
Revenue			$ 21,129,000
Net income (loss)			$ 161,000
Basic net income (loss) per share (in dollars per share)			$ 0.06
Diluted net income (loss) per share (in dollars per share)			$ 0.06
PTF Inc. [Member] | Sales [Member]
PTF Acquisition [Abstract]
Revenues from operations			$ 200,000

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Inventories (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Classification of inventories [Abstract]
Inventory reserve for obsolescence	$ 1,213,000	$ 2,773,000
Inventory wrote off	1,254,000
Inventory net realizable value	0
Raw materials	1,526,000	1,408,000
Work in process	1,337,000	1,306,000
Finished goods	1,012,000	924,000
Total Inventories, net	$ 3,875,000	$ 3,638,000

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Related Party Transactions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
Amount invested in Mutual Fund	$ 3,792	$ 2,714
Amount invested in United States Treasury money market funds	$ 11,050	$ 1,002
Percentage of stockholders controlling a related party	10.00%	10.00%
Other Income [Member]
Related Party Transaction [Line Items]
Investment income generated from mutual funds	$ 24

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Stock-Based Compensation (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Jun. 16, 2016	Aug. 04, 2011
Inputs to option valuation model for options granted [Abstract]
Expected volatility	27.00%	31.00%
Dividend rate	0.00%	0.00%
Expected term (in years)	3 years 6 months 18 days
Risk-free rate	2.01%
Number of Shares Outstanding [Roll Forward]
Option Balances, beginning of period (in shares)	176,344
Options Granted (in shares)	9,541
Options Forfeited (in shares)	(4,500)
Option Balances, end of period (in shares)	181,385	176,344
Options Exercisable end of period (in shares)	128,692
Options, weighted average exercise price [Roll Forward]
Option Balances, beginning of period (in dollars per share)	$ 4.90
Options Granted (in dollars per share)	6.09
Options Forfeited (in dollars per share)	4.01
Option Balances, end of period (in dollars per share)	4.98	$ 4.90
Options Exercisable, end of period (in dollars per share)	5.04
Weighted Average Grant Date Fair Value [Roll Forward]
Option Balances, beginning of period	1.31
Options Granted	1.05
Options Forfeited	0.96
Option Balances, end of period	1.30	$ 1.31
Options Exercisable, end of period	$ 1.41
Options, additional disclosures [Abstract]
Aggregate intrinsic value, outstanding, beginning of period	$ 78,000
Aggregate intrinsic value, granted	0
Aggregate intrinsic value, exercised	0
Aggregate intrinsic value, forfeited	0
Aggregate intrinsic value, expired	0
Aggregate intrinsic value, outstanding, end of period	158,000	$ 78,000
Aggregate intrinsic value, exercisable, end of period	$ 113,000
Weighted average years remaining, outstanding	2 years 4 months 24 days	3 years 4 months 24 days
Weighted average years remaining, exercisable, end of period	1 year 10 months 25 days
Restricted stock, weighted average grant date fair value per share [Roll Forward]
Shares issued with weighted average grant date fair value	10,830
Weighted average grant date fair value of fully vested shares	$ 5.54
Minimum [Member]
Inputs to option valuation model for options granted [Abstract]
Expected term (in years)		3 years 2 months 30 days
Risk-free rate		0.92%
Maximum [Member]
Inputs to option valuation model for options granted [Abstract]
Expected term (in years)		3 years 6 months 18 days
Risk-free rate		1.49%
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price of options either at or above market price	10.00%
Term of award	5 years
Vesting period of award	3 years
Weighted Average Grant Date Fair Value [Roll Forward]
Options Granted	$ 1.05	$ 1.04
Restricted stock, weighted average grant date fair value per share [Roll Forward]
Unrecognized compensation expense	$ 45,000
2011 Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance (in shares)			750,000	500,000
Restricted stock, weighted average grant date fair value per share [Roll Forward]
Number of shares remaining available for future issuance (in shares)	416,852
2011 Incentive Plan [Member] | Restricted Stock [Member]
Restricted stock, weighted average grant date fair value per share [Roll Forward]
Unvested restricted shares granted	0

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Income Taxes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax [Line Items]
Recognized tax expense on remeasurement of certain deferred tax assets and liabiliites		$ 1,662,000
U.S. corporate income tax		34.00%
Recognized provisional tax expense on transition tax for repatriation of foreign earnings		$ 565,000
Computation of one-time tax based on liquid asset period		3 years
Tax expense impacted by cash and other liquid assets		15.50%
Tax expense impacted by non-cash E&P		8.00%
Current:
Federal		$ 0	$ 0
State and local		18,000	8,000
Foreign		43,000	41,000
Total Current		61,000	49,000
Deferred:
Federal		1,637,000	(211,000)
State and local		42,000	267,000
Foreign		41,000	55,000
Total before change in valuation allowance		1,720,000	111,000
Change in Valuation Allowance		(1,679,000)	(325,000)
Net Deferred		41,000	(214,000)
Income tax provision (benefit)		102,000	(165,000)
Reconciliation of provision (benefit) for income taxes [Abstract]
Tax provision (benefit) at expected statutory rate		75,000	(8,000)
State taxes, net of federal benefit		81,000	(25,000)
Permanent differences		450,000	6,000
Credits		(106,000)	(123,000)
Foreign tax expense, and other		(381,000)	11,000
True-up to State NOL		0	299,000
Change in rate		1,662,000	0
Change in Valuation Allowance		(1,679,000)	(325,000)
Income tax provision (benefit)		102,000	(165,000)
Loss before income taxes from domestic operations		(65,000)	(434,000)
Profit before income taxes from foreign operations		284,000	417,000
Net deferred tax assets		173,000	214,000
Deferred tax assets [Abstract]
Inventory reserve		325,000	1,083,000
Fixed assets		0	0
Other reserves and accruals		133,000	213,000
Stock-based compensation		18,000	384,000
Undistributed foreign earnings		0	0
Other		0	0
Tax credit carry-forwards		2,284,000	1,921,000
Federal tax loss carry-forwards		2,380,000	3,428,000
State tax loss carry-forwards		657,000	627,000
Foreign tax loss carry-forwards		173,000	214,000
Total deferred income taxes		5,970,000	7,870,000
Valuation allowance		(5,627,000)	(7,305,000)
Net deferred tax assets		173,000	214,000
Deferred tax liabilities [Abstract]
Inventory reserve		0	0
Fixed assets		141,000	151,000
Other reserves and accruals		0	0
Stock-based compensation		0	0
Undistributed foreign earnings		0	144,000
Other		29,000	56,000
Total deferred income tax liabilities		170,000	$ 351,000
Research and Development Credit Carryforwards [Member]
Reconciliation of provision (benefit) for income taxes [Abstract]
Tax credit carryforward amount		$ 1,515,000
Research and Development Credit Carryforwards [Member] | Minimum [Member]
Reconciliation of provision (benefit) for income taxes [Abstract]
Expiration date		Dec. 31, 2020
Research and Development Credit Carryforwards [Member] | Maximum [Member]
Reconciliation of provision (benefit) for income taxes [Abstract]
Expiration date		Dec. 31, 2038
Foreign Tax Credit Carryforward [Member]
Reconciliation of provision (benefit) for income taxes [Abstract]
Tax credit carryforward amount		$ 727,000
Foreign Tax Credit Carryforward [Member] | Minimum [Member]
Reconciliation of provision (benefit) for income taxes [Abstract]
Expiration date		Dec. 31, 2018
Foreign Tax Credit Carryforward [Member] | Maximum [Member]
Reconciliation of provision (benefit) for income taxes [Abstract]
Expiration date		Dec. 31, 2020
Federal [Member]
Reconciliation of provision (benefit) for income taxes [Abstract]
Net operating loss carryforwards		$ 11,333,000
Expiration date		Dec. 31, 2037
State [Member]
Reconciliation of provision (benefit) for income taxes [Abstract]
Net operating loss carryforwards		$ 16,985,000
Expiration date		Dec. 31, 2037
Scenario, Plan [Member]
Income Tax [Line Items]
U.S. corporate income tax	21.00%

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CNB Loan (Details) - CNB Revolver [Member] - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2017
Debt Instrument [Line Items]
Line of credit	$ 3,000,000
Debt instrument maturity date	Sep. 30, 2018
Percentage of commitment fee on unused capacity	0.75%
Line of credit facility amount outstanding	$ 0	$ 0
Line of credit facility associated restricted cash	$ 0	$ 0
30-day LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%

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Stockholders' Equity (Details)		12 Months Ended
	Aug. 06, 2013 shares	Dec. 31, 2017 USD ($) $ / shares shares	Sep. 05, 2017 USD ($) SubscriptionRight $ / shares	Dec. 31, 2016 USD ($) shares	Aug. 29, 2011 shares
Equity Class Of Treasury Stock [Line Items]
Number of shares authorized and available for repurchase (in shares)		540,000			100,000
Treasury stock, shares (in shares)		81,584		81,584
Value of repurchased common stock | $		$ 580,000		$ 580,000
Distribution charge of common stock transferable subscription rights | $			$ 0
Number of transferable subscription rights for each common stock owned | SubscriptionRight			3
Percentage of share of common stock holder is entitled to purchase by each subscription right			0.25%
Common stock subscription price | $ / shares			$ 5.50
Gross proceeds from issuance of common stock | $		11,036,000
Common stock issuance cost | $		$ 242,000
Common stock subscription shares		2,897,171
Expected dividend rate		0.00%
Fair value of subscription rights at time of original issuance | $		$ 10,000
Total warrants distributed (in shares)	12,981,025
Dividend declaration date		Aug. 06, 2013
Dividend date of record		Jul. 29, 2013
Number of warrants received for each share of common stock (in shares)		5
Number of warrants that entitle holder to purchase one share of common stock (in shares)		25
Number of common shares callable by warrants (in shares)		1
Warrant exercise price (in dollars per share) | $ / shares		$ 7.50
Minimum volume weighted average price per share (in dollars per share) | $ / shares		$ 15.00
Common Stock [Member]
Equity Class Of Treasury Stock [Line Items]
Number of shares issued to existing shareholders		2,006,598
Common Stock [Member] | Maximum [Member]
Equity Class Of Treasury Stock [Line Items]
Number of shares issued to existing shareholders		2,006,598
Over-subscription Right [Member]
Equity Class Of Treasury Stock [Line Items]
Common stock subscription price | $ / shares		$ 5.50
Common stock shares issued pro rata basis		686,439

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Fair Value Measurements (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Fair Value Assets Measured On Recurring Basis [Line Items]
Liabilities, fair value disclosure, non-recurring	$ 0	$ 0	$ 0
Impairment of note receivable		102
Net recoverable value	101	101	203
Notes Receivable [Member]
Fair Value Assets Measured On Recurring Basis [Line Items]
Impairment of note receivable	102
Net recoverable value	101	101
Equity Securities [Member]
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair value assets	3,803	3,803	2,770
U.S. Treasury Securities (Cash Equivalents) [Member]
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair value assets	11,866	11,866	1,002
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Equity Securities [Member]
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair value assets	3,803	3,803	2,770
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Treasury Securities (Cash Equivalents) [Member]
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair value assets	11,866	11,866	1,002
Significant Other Observable Inputs (Level 2) [Member] | Equity Securities [Member]
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair value assets	0	0	0
Significant Other Observable Inputs (Level 2) [Member] | U.S. Treasury Securities (Cash Equivalents) [Member]
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair value assets	0	0	0
Significant Unobservable Inputs (Level 3) [Member] | Equity Securities [Member]
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair value assets	0	0	0
Significant Unobservable Inputs (Level 3) [Member] | U.S. Treasury Securities (Cash Equivalents) [Member]
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair value assets	$ 0	$ 0	$ 0

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Employee Benefit Plans (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Compensation And Retirement Disclosure [Abstract]
Employer matching contribution, percentage	50.00%
Employer matching contribution of employees' contribution, percentage	6.00%
Employer matching contribution amount	$ 116,000	$ 107,000
Annual vesting percentage of employer contributions	20.00%
Vesting period of employer matching contributions	6 years
Vesting percentage of employer contributions by year six	100.00%

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Commitments and Contingencies (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Operating Leased Assets [Line Items]
Rent expense under operating leases	$ 285,000	$ 249,000
Minimum [Member]
Operating Leased Assets [Line Items]
Term of operating leases	1 year
Maximum [Member]
Operating Leased Assets [Line Items]
Term of operating leases	2 years

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Segment Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($) Segment	Dec. 31, 2016 USD ($)
Segment Reporting Information [Line Items]
Number of reportable business segments | Segment	2
Revenues from Operations
Revenues from operations	$ 22,402	$ 20,891
Operating Income (Loss) from Operations
Consolidated total operating loss	276	(161)
Interest expense, net	(11)	(22)
Other (expense) income, net	(46)	166
Total other (expense) income	(57)	144
Income (loss) Before Income Taxes	219	(17)
Capital Expenditures
Total capital expenditures	131	172
Total Assets
Total assets	27,555	16,646
Unallocated corporate expense [Member]
Operating Income (Loss) from Operations
Consolidated total operating loss	(1,040)	(1,111)
Capital Expenditures
Total capital expenditures		10
Total Assets
Total assets	14,845	7,100
Electronic components [Member]
Revenues from Operations
Revenues from operations	21,516	20,691
Electronic components [Member] | Reportable Segment [Member]
Operating Income (Loss) from Operations
Consolidated total operating loss	1,260	1,011
Capital Expenditures
Total capital expenditures	131	162
Total Assets
Total assets	11,899	9,015
Electronic instruments [Member]
Revenues from Operations
Revenues from operations	886	200
Electronic instruments [Member] | Reportable Segment [Member]
Operating Income (Loss) from Operations
Consolidated total operating loss	56	(61)
Total Assets
Total assets	$ 811	$ 531

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Domestic and Foreign Revenues (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Entity Wide Revenue Major Customer [Line Items]
Revenues from operations	$ 22,402	$ 20,891
Domestic [Member]
Entity Wide Revenue Major Customer [Line Items]
Revenues from operations	16,090	14,893
Foreign [Member]
Entity Wide Revenue Major Customer [Line Items]
Revenues from operations	$ 6,313	5,998
Foreign [Member] | Sales Revenue, Segment [Member] | Customer Concentration Risk [Member]
Entity Wide Revenue Major Customer [Line Items]
Portion of foreign sales	10.00%
Malaysia [Member]
Entity Wide Revenue Major Customer [Line Items]
Revenues from operations	$ 3,038	3,240
All other foreign countries [Member]
Entity Wide Revenue Major Customer [Line Items]
Revenues from operations	$ 3,275	$ 2,758