10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)

☒ 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 000-55843

Techpoint, Inc.

(Exact name of Registrant as specified in its Charter)

Delaware	80-0806545
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

2550 N. First Street, #550

San Jose, CA 95131 USA

(408) 324-0588

(Address, including zip code, and telephone number,

including area code, of registrant’s principal executive offices)

Securities registered pursuant to Section 12(b) of the Act:
Title of Each Class	Name of Exchange on Which Registered
Common Stock, Par Value $0.0001 Per Share	Tokyo Stock Exchange (Mothers Market)

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

None

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 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) is not contained herein, and will not be contained, to the best of 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, smaller reporting company, or an 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 Exchange Act).    YES  ☐    NO  ☒

The JDS, as represented by common stock, of the registrant was not publicly traded as of the last business day of the registrant’s second fiscal quarter ended June 30, 2017. The aggregate market value of the voting and non-voting common equity held by non-affiliates of the Registrant on September 29, 2017, the date of initial listing, based on the closing price of the shares of JDS on the Tokyo Stock Exchange of $12.20, was $199,591,762.

As of March 9, 2018, the registrant had 17,114,353 shares of common stock, $0.0001 par value per share, outstanding and 4,403,814 shares of JDSs outstanding.  

Portions of the Registrant’s Definitive Proxy Statement relating to the Annual Meeting of Shareholders, scheduled to be held on May 31, 2018, are incorporated by reference into Part III of this Report.

Table of Contents

		Page
PART I
Item 1.	Business	1
Item 1A.	Risk Factors	7
Item 1B.	Unresolved Staff Comments	27
Item 2.	Properties	27
Item 3.	Legal Proceedings	27
Item 4.	Mine Safety Disclosures	27
PART II
Item 5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	28
Item 6.	Selected Financial Data	30
Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	32
Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	43
Item 8.	Financial Statements and Supplementary Data	44
Item 9.	Changes in and Disagreements With Accountants on Accounting and Financial Disclosure	66
Item 9A.	Controls and Procedures	66
Item 9B.	Other Information	66
PART III
Item 10.	Directors, Executive Officers and Corporate Governance	67
Item 11.	Executive Compensation	67
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	67
Item 13.	Certain Relationships and Related Transactions, and Director Independence	67
Item 14.	Principal Accounting Fees and Services	67
PART IV
Item 15.	Exhibits, Financial Statement Schedules	68

PART I

Information Regarding Forward-Looking Statements

This Annual Report on Form 10-K includes forward-looking statements. All statements other than statements of historical facts contained in this Annual Report on Form 10-K, including statements regarding our future results of operations and financial position, strategy and plans, and our expectations for future operations, are forward-looking statements. The words “believe,” “may,” “will,” “estimate,” “continue,” “anticipate,” “design,” “plan,” “project,” “intend,” “expect” or the negative version of these words and similar expressions are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and trends that we believe may affect our financial condition, results of operations, strategy, short-term and long-term business operations and objectives, and financial needs. These forward-looking statements are subject to a number of risks, uncertainties and assumptions, including those described in “Risk Factors” in this Annual Report on Form 10-K. In light of these risks, uncertainties and assumptions, the forward-looking events and circumstances discussed in this Annual Report on Form 10-K may not occur, and actual results could differ materially and adversely from those anticipated or implied in the forward-looking statements. Forward-looking statements include, but are not limited to, statements about:

• our future financial performance, including our revenue, cost of sales and operating expenses;

• our market opportunity and our ability to effectively manage or sustain our growth;

• our ability to attract and retain end-customers in our current or future target markets;

• our ability to continue to develop new technologies and obtain and maintain intellectual property rights protecting such technologies;

• new product releases and timing;

• anticipated trends, key factors and challenges in our business and the competition that we face;

• our liquidity and working capital requirements; and

• our expectations regarding future expenses and investments.

Although we believe that the expectations reflected in the forward-looking statements are reasonable, we cannot guarantee future results, level of activity, performance or achievements. Any forward-looking statement made by us in this Annual Report on Form 10-K speaks only as of the date on which it is made. We disclaim any duty to update any of these forward-looking statements after the date of this Annual Report on Form 10-K, except as required by law.

The following information should be read together with our consolidated financial statements and the notes to those statements that appear in this Annual Report on Form 10-K. Unless otherwise specified or the context otherwise requires, “Techpoint,” “we,” “us,” and “our” refer to Techpoint, Inc. and its consolidated subsidiaries.

Item 1. Business

We are a fabless semiconductor company that designs, markets and sells mixed-signal integrated circuits for multiple video applications in the security surveillance and automotive markets. Our integrated circuits are enabling the transition from standard definition, or SD, video to high definition, or HD, video in the security surveillance and automotive industries. We target specific video applications that receive and process high definition analog video signals, including surveillance cameras, surveillance digital video recorders, or DVRs, as well as cameras in automobiles. We design application specific products that utilize our HD analog transmission technology and perform advanced digital video processing to facilitate the display, transmission and storage of video content. We believe designing our integrated circuits for specific applications allows us to better address varying end-customer requirements, fully leverage our technological capabilities and achieve greater share within our target markets.

We were originally incorporated in California in April 2012, and we reincorporated into Delaware in July 2017. During September 2017, we completed our initial public offering of Japanese Depositary Shares, or JDSs. We

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have decided to issue to the public, and list on the Mothers market of the Tokyo Stock Exchange, JDSs, instead of our common stock. JDSs are a representative security, and each JDS will represent one share of common stock.

Application Specific Products

We design, market and sell integrated circuits that enable the transmission of high definition video content over long cable distances to facilitate the display, storage or processing of video content. Our application specific products currently include our security surveillance and automotive product lines. We intend to continue to develop new generations of products for each of these application specific product lines.

Security Surveillance. We have three subgroups of products for security surveillance consisting of HD-TVI transmitters, HD-TVI receivers and HD-SDI receivers.

HD-TVI Transmitters. Our HD-TVI transmitters are used within the camera, and take the HD digital signal from an HD camera processor and converts it to HD-TVI analog signals. We integrate the HD camera processor and HD-TVI transmitter into the same integrated circuit to save cost and save space in a camera. We also market standalone HD-TVI transmitters to increase our flexibility to work with other camera processors in the market. This allows a customer either to purchase our combined HD-TVI transmitter with both a processor and transmitter or our standalone transmitter to be paired with a third-party processor.

HD-TVI Receivers. Our HD-TVI receivers are used in DVRs, and convert the HD-TVI analog signal into digital signals to be processed by a DVR system, which can then transmit the image to a display. To improve the cost and performance of our HD-TVI receivers, we integrate multiple HD-TVI receivers along with standard definition analog video decoders as well as analog audio decoders into the same integrated circuit. This allows HD DVR makers to support HD video and standard definition video for backward compatibility at the same time.

HD-SDI Receivers. Our HD-SDI receivers perform similar functions for HD video as our HD-TVI receivers, except these HD-SDI receivers use serial digital transmission technology used in video broadcasting instead of our HD-TVI technology. Having both HD-TVI and HD-SDI receiver products in our product portfolio allows us to address both the analog and digital HD security surveillance market segments at the same time.

Automotive. We optimize our automotive HD-TVI transmitters and receivers to work with current automotive camera processors and navigation systems in the automotive market. For example, our automotive HD-TVI transmitters are designed to work specifically with current automotive camera processors and image sensors. Similar to our security surveillance products, our automotive HD-TVI receiver also integrates standard definition analog video decoders so that automotive vendors have the flexibility of supporting both HD and standard definition video.

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The following table summarizes the features applications of our application specific integrated circuit product lines:

Product Line		Key Features	Representative Applications
Security Surveillance
HD-TVI Transmitters	-	Converts HD camera signals to HD-TVI analog signals	Security Surveillance Cameras
	-	Integrated HD Camera processor supporting Wide Dynamic Range, Low Light Noise Reduction and advanced video processing
HD-TVI Receivers	-	Converts HD-TVI analog signal into digital signal	DVR application
	-	Integrates four HD-TVI receivers
	-	Integrated Standard Definition analog	DVR application
		video decoder and audio codec
HD-SDI Receivers	-	Integrates four HD-SDI receivers	Enables backward compatibility with standard definition equipment
	-	Integrates four HD-SDI transmitters
Automotive
HD-TVI Transmitter	-	Interfaces with most automotive camera	Automotive HD Backup Camera
		processors on the market	Automotive HD Surround View Camera
HD-TVI Receivers	-	Integrated Standard Definition analog video decoder	Automotive HD Display Automotive E-Mirrors

Technology

We have several core competencies that enable us to design analog, mixed signal and digital technologies that can be implemented across our application specific product lines. We have internally developed the combination of technologies, expertise and capabilities necessary for the conversion and processing of HD video signals. We do not depend on third parties for any material technology, expertise or design capability.

We have developed a proprietary high definition analog video transmission technology called high definition transport video interface, or HD-TVI. Our HD analog technology operates at the same 1080p HD resolution as digital HD technologies, but transmits the information in a continuous format, or wave, instead of a binary 0 or 1 format. When transmitted information in an analog system encounters interference or other degradation, the video quality is impacted, this is in contrast to a digital transmission where once a threshold level of interference or other degradation is encountered the image is cutoff completely. Our HD-TVI technology uses analog transmission techniques that are an extension of legacy analog video broadcasting technology used in traditional analog televisions but which can deliver high definition video transmission over long cable distances. Our HD-TVI transmitter interfaces with a high definition camera processor or image sensor and converts the digital HD content to an HD analog signal. After transmission, our HD-TVI receiver converts this analog signal back into a digital signal for processing by a standard display processor.

As a result of our advanced analog design capability, we have developed multiple technologies that enable analog video signals to be processed digitally. One of the key analog technologies we have developed internally is our high performance and cost effective analog front-end that conditions and converts analog video signals into a digital format for display. The multiple core functions performed within our integrated circuits featuring an analog front-end are anti-aliasing filtering, automatic gain control signal clamping and analog to digital conversion. Other key analog technologies we have developed internally are analog equalizers, phase lock loops, high frequency and

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delta sigma analog to digital converters, video and audio digital to analog converters and low voltage differential signaling.

We have also developed a number of digital technologies specific to the security surveillance and automotive markets. For example, we have developed image signal processing technologies such as wide dynamic range, noise reduction, as well as de-interlacing, scaling, and other video enhancement algorithms, which are important technologies for HD cameras and HD video display technologies for security surveillance and automotive HD video applications. We also possess digital HD transmission technologies such as serializer and de-serializer interface technologies, which we can offer as an alternative to our HD analog transmission technologies.

Customers

We principally sell our products to distributors who, in turn, sell to original design manufacturers, or ODMs, contract manufacturers and design houses. In addition, we sell our products, though to a lesser extent, directly to ODMs. ODMs typically design and manufacture electronic products to sell to original equipment manufacturers, or OEMs. Our agreements to sell our products through distribution channels generally provide for a non-exclusive right to sell, promote and develop a market for our products in a specified geographic area. These agreements generally may be terminated by either party on 60 days’ notice and do not require price protection.

In both the security surveillance and automotive markets, we have significant engagement with our end-customers prior to completion of a sale. In the security surveillance market, our end-customer is the OEM or system designer who manufacturers or designs the end product, such as a camera or DVR, that will be purchased for placement into a security surveillance system. In the automotive market, our end-customer is the automobile manufacturer, but we also typically engage with system designers and manufacturers who sell systems, such as navigation or backup video camera systems, to automobile manufacturers. Our sales representatives and engineers engage directly with these end-customers, even if we do not sell directly to them, because these end-customers exert significant influence over the design of the products or systems that are ultimately placed into their products. Our integrated circuits are used by security surveillance manufacturers, such as Hikvision in China, IDIS in South Korea and AVTech in Taiwan. These three manufacturers are each a leading security surveillance manufacturer in their respective country. We also currently have design wins for future generations of automobiles with major automotive equipment manufacturers. A design win does not necessarily result in future revenue, but we believe it is a strong indicator that our integrated circuits will be incorporated into a future model for that particular automotive equipment manufacturer.

Sales and Marketing

We sell our products worldwide through multiple channels, primarily through our network of domestic and international independent distributors and sales representatives. Each of these sales channels is supported by our customer service and marketing organizations. We have sales and customer support personnel in the United States, China, Japan, South Korea and Taiwan. We intend to expand our sales and support capabilities and our network of independent sales representatives in key regions worldwide.

Our sales cycles typically range from three to six months for the security surveillance market and one to three years for the automotive industry. We work directly with system designers to create demand for our products by providing them with application specific product information for their system design, engineering and procurement groups. We actively engage these groups during their design processes to introduce them to our integrated circuits. We endeavor to design our products to meet anticipated, increasingly complex and specific design requirements, but which will also support widespread demand for the products and future enhancements to them. If successful, this process culminates in a system designer deciding to use our products in their system, which we refer to as a design win. Once our product is accepted and designed into an application, we believe the system designer is likely to continue to use the same or enhanced versions of our product across a number of their models, which tends to extend the life cycle of our product. This is particularly true in the automotive industry, which typically experiences multi-year product lifecycles, sometimes up to four years or longer. In addition, a design win into a particular model of car for a specific manufacturer may translate into design wins for different models from the same auto manufacturer. If we fail to achieve an initial design win, we may lose the opportunity for sales to an end-customer for a number of its products and for a lengthy period of time.

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Backlog

Our sales are made primarily pursuant to standard individual purchase orders. Our backlog consists of orders that we have received from customers that have not yet shipped. Historically, management has not used backlog as an indicator of future business. As our order lead times may vary and as industry practice allows customers to reschedule or cancel orders on relatively short notice, we believe that backlog is not necessarily a good indicator of future sales. In addition, our quarterly revenue depends on orders booked and shipped in that quarter. As a result, we have not experienced material backlog at the end of a quarter, and any backlog at that time would be more indicative of the timing of the order, rather than anything that may predict future performance.

Research and Development

Our research and development efforts are focused on the development of new technologies as well as application specific products. Our engineering team has expertise in advanced analog design, mixed signal digital processing, video decoding and software engineering. Our research and development expense was $5.4 million, $4.4 million and $5.0 million for the year ended December 31, 2017, 2016 and 2015, respectively.

Intellectual Property

We seek to protect our proprietary technology, documentation and other written materials primarily under trade secret and copyright laws. We also typically require employees with access to our proprietary information to execute confidentiality agreements. The steps taken by us to protect our proprietary information may not be adequate to prevent misappropriation of our technology.

Although we rely primarily on trade secret laws and contractual restrictions to protect the technology in the integrated circuits we currently design and market, our success and ability to compete in the future may also depend to a significant degree upon obtaining and enforcing patent protection for our HD analog and other mixed signal technologies. As of December 31, 2017, we have one patent application pending in the United States. This patent application covers aspects of the technology in the integrated circuits we currently design and market. Our future patents, if any are issued, may provide only limited protection for our technology and may not be sufficient to provide competitive advantages to us. For example, competitors could be successful in challenging any issued patents or, alternatively, could develop similar or more advantageous technologies on their own or design around our patents.

The laws of various countries in which we market our integrated circuits may offer little or no protection for our proprietary technologies. Reverse engineering, unauthorized copying or other misappropriation of our proprietary technologies could enable third parties to benefit from our technologies without paying us for doing so. Any inability to protect our proprietary rights could harm our ability to compete, generate revenue and grow our business.

We may be required to resort to litigation to enforce our intellectual property rights. We may also be subject to legal proceedings and claims relating to our intellectual property in the ordinary course of our business. Intellectual property litigation is expensive and time-consuming and could divert management’s attention away from running our business. This litigation could also require us to pay substantial damages to the party claiming infringement, stop selling products or using technology that contains the allegedly infringing intellectual property, develop non-infringing technology or enter into royalty or license arrangements.

Manufacturing

We do not own or operate a semiconductor fabrication, packaging or testing facility. We depend on third-party vendors to manufacture, package and test our products. By outsourcing manufacturing, we are able to avoid the cost associated with owning and operating our own manufacturing facility. This allows us to focus our efforts on the design and marketing of our products.

Integrated Circuit Fabrication. We currently outsource the manufacturing of our integrated circuits to Taiwan Semiconductor Manufacturing Company, or TSMC, and Fujitsu Electronics America, Inc., or Fujitsu. We work

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closely with TSMC and Fujitsu to forecast on a monthly basis our manufacturing capacity requirements. Our integrated circuits are currently fabricated in several advanced manufacturing processes. Because smaller geometry process technologies lead to enhanced performance, smaller silicon chip size and lower power requirements, we continually evaluate the benefits and feasibility of migrating to smaller geometry process technologies in order to reduce cost and improve performance. We believe that our fabless manufacturing approach provides us with the benefits of superior manufacturing capability as well as flexibility to move the manufacturing, assembly and testing of our products to those vendors that offer the best capability, with adequate capacity at an attractive price. Nevertheless, because we do not have a formal, long-term pricing agreement with TSMC or Fujitsu, our wafer costs and services are subject to sudden price fluctuations based on the cyclical demand for semiconductors. Our engineers work closely with TSMC and Fujitsu to increase yields, lower manufacturing costs and improve quality. We intend to qualify and retain additional foundries to manufacture our semiconductors in the future.

Assembly and Test. Our products are shipped from TSMC or Fujitsu to third-party sort, assembly and test facilities where they are assembled into finished integrated circuits and tested. We outsource all packaging and testing of our products to assembly and test subcontractors, principally Advanced Semiconductor Engineering, Inc., or ASE, in Taiwan. Our products are designed to use low cost, standard packages and to be tested with widely available test equipment.

Quality Assurance. We are committed to maintaining the highest level of quality in our products. We have designed and implemented a quality management system that provides the framework for continual improvement of products, processes and customer service. We also rely on in-depth simulation studies, testing and practical application testing to validate and verify our integrated circuits. To ensure consistent product quality, reliability and yield, together with our manufacturing logistics partners, we closely monitor the production cycle by reviewing manufacturing process data from each wafer foundry and assembly subcontractor. We are certified for ISO 9001 and ISO 14001.

Competition

The market in which we operate is extremely competitive, and is characterized by rapid technological change, continuously evolving end-customer requirements and declining average selling prices. We may not be able to compete successfully against current or potential competitors. We compete with numerous domestic and international semiconductor manufacturers and designers. In our automotive market, we principally compete with Maxim Integrated Products, Inc. and Texas Instruments Incorporated. In selling our integrated circuits into the surveillance market, we principally compete against Nextchip Co., Ltd in South Korea, Pixelplus Co., Ltd in South Korea, Dahua Technology Co. Ltd in China, and Fullhan Microelectronic Co., Ltd in China. Some of our current and potential competitors have longer operating histories, significantly greater resources and name recognition and a larger base of customers than we do. They may also have a larger presence and more significant relationships within certain geographical areas, such as in Asia where many of our end-customers operate. This may allow them to respond more quickly than us to new or emerging technologies or changes in customer requirements. Some of our competitors currently offer product features or technologies that we do not currently offer but intend to sell in the future, such as Ultra HD advanced camera image signal processors. We must, therefore, compete against competitors that have more experience in developing and selling products and technologies that we do not currently offer but intend to offer in the future. Some of our competitors also use smaller geometry process technologies in their products, which can result in better manufacturing yields and decreased costs. In addition, these competitors may have greater credibility with our existing and potential end-customers. Increased competition could harm our business, by, for example, increasing pressure on our profit margins or causing us to lose end-customers. In addition, delivery of products with defects or reliability, quality or compatibility problems may damage our reputation and competitive position. Our ability to compete successfully depends in part on our ability to deliver products without reliability, quality or compatibility problems and on a number of other factors such as performance and robustness, functionality, price and cost effectiveness, rapid time-to-market and customer service and support.

We believe we currently compete favorably with respect to these factors in the aggregate. However, we cannot assure you that our products will continue to compete favorably or that we will be successful in the face of increasing competition from new products and enhancements introduced by existing competitors or new companies entering our market.

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Employees

As of December 31, 2017, we employed 63 employees. We have never had a work stoppage, and none of our employees are represented by a labor organization or under any collective bargaining arrangements. We consider our employee relations to be good.

Segment, Geographic Areas and Concentration Information

We operate under one reportable segment which is comprised of one operating segment. See Note 4 “Segment Information” of this Annual Report on Form 10-K for further segment and geographic information. For concentration information, see Note 1 “Organization and Summary of Significant Accounting Policies” of this Annual Report on Form 10-K.

Facilities

Our corporate headquarters and primary research and development and operations facilities occupy approximately 8,512 square feet in San Jose, California, under a lease that expires in February 2020. We also lease properties in China, Japan, South Korea and Taiwan. We do not own any manufacturing facilities, and we contract and license to third parties the production and distribution of our semiconductors. We believe our space is adequate for our current needs and that suitable additional or substitute space will be available to accommodate foreseeable expansion of our operations.

Corporate Information

We were originally incorporated in California in April 2012, and we reincorporated into Delaware in July 2017. Our principal executive offices are located at 2550 N. First Street, #550, San Jose, California 95131, and our telephone number is (408) 324-0588. Our website is www.techpoint.co.jp. Information contained on, or that can be accessed through, our website is not incorporated by reference into this Annual Report on Form 10-K, and you should not consider information on our website to be part of this Annual Report on Form 10-K.

Item 1A. Risk Factors

Investing in Japanese depositary shares (“JDS”) and our underlying common stock involves a high degree of risk. You should consider carefully the risks and uncertainties described below, together with all of the other information in this Annual Report on Form 10-K, including our consolidated financial statements and related notes included elsewhere in this Annual Report on Form 10-K, before making an investment decision. If any of the following risks is realized, our business, financial condition, results of operations and prospects could be materially and adversely affected. In that event, the trading price of the JDSs could decline and you could lose part or all of your investment.

Risks Related to Our Business and Industry

Our limited operating history makes it difficult to evaluate our current business and future prospects.

We were incorporated in 2012 and began shipping our integrated circuits in 2013. Our limited operating history and limited experience selling products, combined with the rapidly evolving and competitive nature of our markets, makes it difficult to evaluate our current business and future prospects. In addition, we have limited insight into emerging trends that may adversely affect our business, financial condition, results of operations and prospects. We have encountered and will continue to encounter risks and difficulties frequently experienced by growing companies in rapidly changing industries, including unpredictable and volatile revenue and increased expenses as we continue to grow our business. The viability and demand for our products may be affected by many factors outside of our control, such as the factors affecting the growth of the security surveillance and automotive industries in general, and the growth and adoption of new security surveillance technologies and automotive video applications in particular, and changes in macroeconomic conditions. Our future revenue growth rate, and the success of our business, will depend in particular upon the success of our automotive video business. We have not yet recognized

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significant revenue from the automotive market, and we may not be successful in growing our revenue in this area. If we do not manage these risks and overcome these difficulties successfully, our business will suffer.

We face intense competition, including from our end-customers and potential end-customers, and we may not be able to compete effectively, which could reduce our market share and decrease our revenue and profitability.

The markets in which we operate are extremely competitive and are characterized by rapid technological change, continuous evolving end-customer requirements and declining average selling prices. We may not be able to compete successfully against current or potential competitors, which include our current or potential end-customers as they seek to internally develop solutions competitive with ours. If we do not compete successfully, our market share and revenue may decline. We compete with large semiconductor manufacturers and designers, large automotive equipment manufacturers’ internally developed solutions, and others, and our current and potential competitors have longer operating histories, significantly greater resources and name recognition and a larger base of customers than we do. This may allow them to respond more quickly than we can to new or emerging technologies or changes in customer requirements. In addition, these competitors may have greater credibility with our existing and potential end-customers. Some of our current and potential end-customers with their own internally developed solutions may choose not to purchase products from third-party suppliers like us.

We primarily sell our products through a limited number of distributors and to a limited number of end-customers, and if our relationships with one or more of those distributors or end-customers were to terminate, our operating results may be harmed.

We market and distribute our products primarily through a limited number of distributors, most of which are located in Asia. This distribution channel has been characterized by rapid change and consolidations. Distributors have accounted for a significant portion of our revenue in the past. Sales to our distributors represented substantially all of our revenue for the year ended December 31, 2017 and 2016, respectively. We do not have any long-term contractual commitments with our distributors.

One of our end-customers, Hikvision, the largest security surveillance manufacturer in China, accounted for 59% and 62% of our revenue for the year ended December 31, 2017 and 2016, respectively. Our sales to Hikvision primarily occur through Phitec, as distributor, who purchases our products as a result of demand from Hikvision for our specific products. We do not have any long-term contractual commitment with Hikvision. Losing Hikvision as an end-customer, or if they decide to scale back use of our products, could have a material and adverse effect on our business.

Our operating results and financial condition could be significantly disrupted by the loss of one or more of our current end-customers, distributors and sales representatives, volume pricing discounts, order cancellations, delays in shipment by one of our major distributors, end-customers or sales representatives, or the failure of our distributors or sales representatives to successfully sell our products. Additionally, customer buying patterns change and can fluctuate from quarter to quarter and impact our results of operations, particularly for significant end-customers. For example, in the second quarter of 2017, Hikvision purchased approximately $1.0 million more of our products than in the first quarter of 2017. These buying patterns can change as a result of factors beyond our control, including inventory adjustments by our end-customers, or due to changes in their anticipated or forecasted demand, which could materially harm our results of operations.

Our revenue and operating results will fluctuate from period to period, which could cause the market price of our JDSs to decline.

Our revenue and operating results are difficult to predict, have in the past fluctuated, and may in the future fluctuate from period to period. It is possible that our operating results in some periods will be below market expectations. This would likely cause the market price of our JDSs to decline. Our operating results in any given period may be affected by a number of factors, including:

• unpredictable volume and timing of end-customer orders, which are not fixed by contract and vary on a purchase order basis;

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• uncertain demand in our primary end markets for our products;

• the loss of one or more of our distributors or end-customers, causing a significant reduction or postponement of orders from these end-customers;

• decreases in the overall average selling prices of our products;

• changes in the relative sales mix of our products;

• changes in our cost of finished goods;

• the availability, pricing and timeliness of delivery of other components used in our end-customers’ products;

• our end-customers’ sales outlook, purchasing patterns and inventory adjustments based on demands and general economic conditions;

• changes in end-customer order patterns including order cancellations;

• product obsolescence and our ability to manage product transitions;

• our ability to successfully develop, introduce and sell new or enhanced products in a timely manner;

• the timing of new product announcements or introductions by us or by our competitors;

• changes in business and economic conditions that could affect consumer confidence; and

• fluctuations in our effective tax rate.

We base our planned operating expenses in part on our expectations of future revenue, and a significant portion of our expenses is relatively fixed in the short-term. We have limited historical financial data from which to predict future sales for our products. As a result, it is difficult for us to forecast our future revenue and budget our operating expenses accordingly. If revenue for a particular period is lower than we expect, we likely will be unable to proportionately reduce our operating expenses for that period, which would harm our operating results for that period.

If the growth of demand for video applications for the security surveillance and automotive markets does not continue, and if we are unsuccessful in selling into the automotive market our ability to increase our revenue and operating results could suffer.

Our ability to increase our revenue will depend on increased demand for video applications in the security surveillance and automotive markets. For the year ended December 31, 2017 and 2016, 90% and 98% of our revenue was derived from the sale of our products designed for the security surveillance market, respectively. If our products sold into this market decline or do not increase, or if demand slows in this market generally, our operating results would suffer. In addition, we have increased our focus on the automotive market and have devoted substantial resources to the development of products for video applications that address this market. We expect that the automotive market will be a substantial driver of our future business, however, we may not be successful developing and marketing our solutions for this market, or gain significant market share. If we are not successful in selling our products into this market, or if the automotive industry in general experiences weak demand, we may not recover the costs associated with our efforts in this area and our operating results could suffer.

The growth of our target markets is uncertain and will depend in particular upon:

• the pace at which new HD video applications are adopted;

• evolving regulation in different jurisdictions governing backup cameras in automotive applications;

• a continued reduction in the costs of products in these markets;

• the availability, at a reasonable price, of components required by such products, such as LCD panels; and

• consumer confidence and the continued increase of consumer spending levels.

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We depend on key and highly skilled personnel to operate our business, and if we are unable to retain our current personnel and hire additional personnel, our ability to develop and market our products could be harmed.

We believe our future success will depend in large part upon our ability to attract and retain highly skilled managerial, engineering and sales and marketing personnel. We operate in locations where competition for engineering talent is particularly intense, including the Silicon Valley. If we are unable to recruit and retain skilled personnel, our business could suffer and our financial results could decline. The loss of any key personnel or the inability to attract or retain qualified personnel could delay the development and introduction of, and harm our ability to sell, our products and harm the market’s perception of us. We do not have long-term employment contracts with any of our employees, including our key personnel, and their knowledge of our business and industry would be extremely difficult to replace.

We may not sustain or increase profitability in the future, which may cause the market price of our JDSs to decline.

To sustain or increase profitability, we will need to generate and sustain substantially higher revenue while maintaining reasonable cost and expense levels. We currently expect to increase expense levels in each of the next several quarters to support increased research and development, sales and marketing, and regulatory compliance efforts. These expenditures may not result in increased revenue or end-customer growth. Because many of our expenses are fixed in the short-term, or are incurred in advance of anticipated sales, we may not be able to decrease our expenses in a timely manner to offset any shortfall of sales. This will harm our future financial results and negatively impact our profitability. We may not be able to sustain or increase profitability on a quarterly or an annual basis. This may, in turn, cause the price of our JDSs to decline.

We may not be able to manage our future growth effectively, and we may need to incur significant expenditures to address the additional operational and control requirements of our growth.

We have experienced a period of significant growth and expansion, which has placed, and any future expansion will continue to place, a significant strain on management, personnel, systems and financial resources. We have hired additional employees to support an increase in research and development as well as increase our sales and marketing and general and accounting efforts, which resulted in increasing our headcount from 21 employees as of December 31, 2013 to 63 employees as of December 31, 2017. To manage our growth successfully, we believe we must effectively:

• train, integrate and manage additional qualified engineers for research and development activities, sales and marketing personnel and financial and information technology personnel;

• continue to enhance our customer resource management and manufacturing management systems;

• implement additional and improve existing administrative, financial and operations systems, procedures and controls, including the requirements of the U.S. Sarbanes-Oxley Act of 2002 and other regulations we are subject to in the United States and in Japan;

• expand and upgrade our technological capabilities; and

• manage multiple relationships with our end-customers, distributors, suppliers and other third-parties.

Our efforts may require substantial managerial and financial resources and may increase our operating costs even though these efforts may not be successful. If we are unable to manage our growth effectively, we may not be able to take advantage of market opportunities, develop new products, satisfy end-customer requirements, execute our business plan or respond to competitive pressures.

Changes to industry standards and technical requirements relevant to our products and markets could adversely affect our business, results of operations and prospects.

Our products are only a part of larger electronic systems. All products incorporated into these systems must comply with various industry standards and technical requirements created by regulatory bodies or industry participants in order to operate efficiently together. Industry standards and technical requirements in our markets are

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evolving and may change significantly over time. In addition, large industry-leading semiconductor and electronics companies play a significant role in developing standards and technical requirements for the product ecosystems within which our products can be used. Automotive companies typically have exacting requirements for components in their vehicles, which must meet a variety of standards. Our end-customers also may design certain specifications and other technical requirements specific to their products and solutions. These technical requirements may change as the end-customer introduces new or enhanced products and solutions.

Our ability to compete in the future will depend in part on our ability to identify and comply with evolving industry standards and technical requirements. The emergence of new industry standards and technical requirements could render our products incompatible with products developed by other suppliers or make it difficult for our products to meet the requirements of certain of our end-customers in consumer, industrial, automotive and other markets. As a result, we could be required to invest significant time and effort and to incur significant expense to redesign our products to ensure compliance with relevant standards and requirements. If our products are not in compliance with prevailing industry standards and technical requirements for a significant period of time, we could miss opportunities to achieve crucial design wins, our revenue may decline and we may incur significant expenses to redesign our products to meet the relevant standards, which could adversely affect our business, results of operations and prospects.

The market for HD video application integrated circuits is characterized by declines in average selling prices, which we expect to continue, and which could negatively affect our revenue and margins.

Our end-customers expect the average selling price of our products to decrease year-over-year and we expect this trend to continue. When such pricing declines occur, we may not be able to mitigate the effects by selling more or higher margin units, or by reducing our manufacturing costs. In such circumstances, our operating results could be materially and adversely affected. Our products have experienced declining average selling prices over their life cycle. The rate of decline may be affected by a number of factors, including relative supply and demand, the level of competition, production costs and technological changes. As a result of the decreasing average selling prices of our products following their launch, our ability to increase or maintain our margins depends on our ability to introduce new or enhanced products with higher average selling prices and to reduce our per-unit cost of sales and our operating costs. We may not be able to reduce our costs as rapidly as companies that operate their own manufacturing, assembly and testing facilities, and our costs may even increase because we do not operate our own manufacturing, assembly or testing facilities, which could also reduce our gross margins. In addition, our new or enhanced products may not be as successful or enjoy as high margins as we expect. If we are unable to offset any reductions in average selling prices by introducing new products with higher average selling prices or reducing our costs, our revenue and margins will be negatively affected and may decrease.

We have engaged in acquisitions in the past and may continue to expand through acquisitions of, or investments in, other companies, which may divert our management’s attention, harm our operating results, result in additional dilution to stockholders and use resources that are necessary to operate our business.

In the past, we have grown our business through acquisitions and we may in the future seek to acquire or invest in businesses, products or technologies that we believe could complement or expand our business, enhance our technical capabilities or otherwise offer growth opportunities. For example, in 2013, we acquired certain high-definition video assets from a third party. Such acquisitions or investments could create risks for us, including:

• difficulties in assimilating acquired personnel, operations and technologies or realizing synergies expected in connection with an acquisition, particularly with acquisitions of companies with large and widespread operations, complex products or that operate in markets in which we historically have had limited experience;

• unanticipated costs or liabilities, including possible litigation, associated with the acquisition;

• incurrence of acquisition-related costs and goodwill;

• diversion of management’s attention from other business concerns;

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• use of resources that are needed in other parts of our business; and

• use of substantial portions of our available cash to consummate an acquisition.

A significant portion of the purchase price of companies we acquire may be allocated to acquired goodwill or other intangible assets, which must be assessed for impairment at least annually. If such acquisitions do not yield expected returns, we may be required to take charges to our earnings based on this impairment assessment process, which could harm our results of operations.

We may be unable to complete acquisitions at all or on commercially reasonable terms, which could limit our future growth. Acquisitions could also result in dilutive issuances of equity securities or the incurrence of debt, which could adversely affect our operating results and result in a decline in our stock price and further restrict our ability to pursue business opportunities, including potential acquisitions. In addition, if an acquired business fails to meet our expectations, our operating results may suffer.

We manufacture our products based on our estimates of end-customer demand, and if our estimates are incorrect or our end-customers cancel their orders our financial results could be negatively impacted.

Our sales are made on the basis of purchase orders rather than long-term purchase commitments. In addition, our distributors may cancel purchase orders or defer the shipments of our products. We manufacture our products according to our estimates of end-customer demand. This process requires us to make multiple demand forecast assumptions, each of which may introduce error into our estimates. If we overestimate end-customer demand, we may manufacture products that we may not be able to sell. As a result, we would have excess inventory, which would increase our losses. Conversely, if we underestimate end-customer demand or if sufficient manufacturing capacity were unavailable, we would forego revenue opportunities, lose market share and damage our relationships.

If we fail to develop new products and enhance our existing products in order to react to rapid technological change and market demands, our business will suffer.

We must develop new products and enhance our existing products with improved technologies to meet rapidly evolving end-customer requirements. We need to design products for end-customers who continually require higher performance and functionality at lower costs. For example, we anticipate that sales of 1080p products will decrease as the market moves to higher resolution displays, such as 4K, in the coming years. We must, therefore, continue to cost-effectively add features that enhance performance and functionality to our products. The development process for these advancements is lengthy and requires us to accurately anticipate market trends. Our failure to accurately anticipate market trends in a timely manner will harm the market acceptance of our products and the sales of our products.

Developing and enhancing these products is uncertain and can be time-consuming, costly and complex. There is a risk that these developments and enhancements will be late, fail to meet end-customer or market specifications or not be competitive with products from our competitors that offer comparable or superior performance and functionality. Any new products or product enhancements may not be accepted in new or existing markets. Our business will suffer if we fail to develop and introduce new products or product enhancements on a cost-effective basis.

We rely on a limited number of independent subcontractors for the manufacture, assembly and testing of our semiconductors, and the failure of any of these third-party vendors to deliver products or otherwise perform as requested could damage our relationships with our end-customers, decrease our sales and limit our growth.

We do not have our own manufacturing or assembly facilities and have very limited in-house testing facilities. Therefore, we must rely on third-party vendors to manufacture, assemble and test the products wedesign. We currently rely TSMC and Fujitsu to produce almost all of our semiconductors. We rely on Advanced Semiconductor Engineering, Inc., or ASE, to assemble, package and test almost all of our products. If these vendors do not provide us with high-quality products, services and production and test capacity in a timely manner, or if one or more of these vendors terminates its relationship with us, we may be unable to obtain satisfactory replacements to fulfill end-

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customer orders on a timely basis, our relationships with our end-customers could suffer and our sales could decrease. Other significant risks associated with relying on these third-party vendors include:

• reduced control over product cost, delivery schedules and product quality;

• potential price increases;

• inability to achieve required production or test capacity and achieve acceptable yields on a timely basis;

• longer delivery times;

• increased exposure to potential misappropriation of our intellectual property;

• shortages of materials that foundries use to manufacture products;

• labor shortages or labor strikes; and

• quarantines or closures of manufacturing facilities due to the outbreak of viruses, such as SARS, the avian flu or any similar future outbreaks in Asia.

We currently do not have long-term supply contracts with any of our third-party vendors. Therefore, they are not obligated to perform services or supply products to us for any specific period, in any specific quantities or at any specific price, except as may be provided in a particular purchase order. Neither TSMC, Fujitsu nor ASE has provided contractual assurances to us that adequate capacity will be available for us to meet future demand for our products. These third-party vendors may allocate capacity to the production of other companies’ products while reducing deliveries to us on short notice. In particular, other customers that are larger and better financed than we are or that have long-term agreements with TSMC, Fujitsu or ASE may cause either or both of them to reallocate capacity to those customers, decreasing the capacity available to us.

Changes to industry regulations relevant to our products and markets could adversely affect our business, results of operations and prospects.

In 2014 the U.S. National Highway Traffic Safety Administration issued new rules that require new cars sold in the United States to have backup cameras by May 2018. This date had been postponed in the past, and could be postponed again. Our market projections assume that the implementation of these rules is not delayed, and that the rules are not modified in a way that is unfavorable to us and our products. Additionally, there is no guarantee that other jurisdictions will follow the lead of the United States and require backup cameras on vehicles. While we currently anticipate that consumers and regulators in other jurisdictions, including the European Union, will adopt backup cameras, there is no guarantee that this will happen within a time frame that we can take advantage of, or at all. If automotive backup cameras do not become widespread our target market may be much smaller than we anticipate, limiting our potential growth and revenue.

We rely on our relationships with Original Design Manufacturers, or ODMs, to enhance our solutions and market position, and our failure to continue to develop or maintain such relationships in the future would harm our ability to remain competitive.

We develop our products for ODMs that serve a variety of end markets including home and office security surveillance, and automotive applications. For each application, manufacturers create products that incorporate specialized semiconductor technology, which producers further down the supply chain integrate into their products. For example, our solutions may be integrated into a more comprehensive video product that is incorporated into an automotive vehicle or aftermarket system and sold to consumers. We must work closely with manufacturers to ensure that each new generation of our solutions becomes qualified for use in their products. As a result, maintaining close relationships with leading product manufacturers in our target markets is crucial to the long-term success of our business. We could lose these relationships for a variety of reasons, including our failure to qualify as a vendor, our failure to demonstrate the value of our new solutions, declines in product quality, or if ODMs seek to work with vendors with broader product suites, greater production capacity or greater financial resources. If our relationships with key industry participants were to deteriorate or if our solutions were not qualified by our end-customers, our market position and revenue could be materially and adversely affected.

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Our business depends on customers, suppliers and operations in Asia, and as a result we are subject to regulatory, operational, financial and political risks, which could adversely affect our financial results.

The percentage of our revenue attributable to sales to customers in Asia was greater than 99% for the year ended December 31, 2017 and 2016. We derived 85% and 88%of our revenue from sales to customers in China for the year ended December 31, 2017 and 2016, respectively. We expect that revenue from customers in Asia will continue to account for substantially all of our revenue. All our sales currently are denominated in U.S. dollars. As a result, an increase in the value of the U.S. dollar relative to foreign currencies could make our products less competitive in international markets.

Currently, we rely on a network of sales representatives to sell our products internationally. We also have offices in Japan, China, South Korea and Taiwan, which serves various aspects of our business. Moreover, we have in the past relied on, and expect to continue to rely on, suppliers, manufacturers and subcontractors primarily located in Taiwan. Accordingly, we are subject to several risks and challenges, any of which could harm our business and financial results. These risks and challenges include:

• difficulties and costs of staffing and managing international operations across different geographic areas and cultures;

• compliance with a wide variety of domestic and foreign laws and regulations, including those relating to the import or export of semiconductor products;

• legal uncertainties regarding taxes, tariffs, quotas, export controls, export licenses and other trade barriers;

• foreign currency exchange fluctuations relating to our international operating activities;

• our ability to receive timely payment and collect our accounts receivable;

• political, legal and economic instability, foreign conflicts and the impact of regional and global infectious illnesses in the countries in which we and our customers, end-customers, suppliers, manufacturers and subcontractors are located;

• legal uncertainties regarding protection for intellectual property rights in some countries; and

• fluctuations in freight rates and transportation disruptions.

We have operations outside of the United States and intend to expand our international operations, which exposes us to significant risks.

We have offices in the United States, Japan, South Korea, China and Taiwan. We presently intend to expand our operations in Asia, specifically in Japan. The success of our business depends, in large part, on our ability to operate successfully from geographically disparate locations and to further expand our international operations and sales. Operating in international markets requires significant resources and management attention and subjects us to regulatory, economic and political risks that are different from those we face in the United States. We cannot be sure that further international expansion will be successful. In addition, we face risks in doing business internationally that could expose us to reduced demand for our products, lower prices for our products or other adverse effects on our operating results. Among the risks we believe are most likely to affect us are:

• difficulties, inefficiencies and costs associated with staffing and managing foreign operations, including the regulations we are subject to as a U.S. company with securities publicly traded in Japan;

• longer and more difficult end-customer qualification and credit checks;

• greater difficulty collecting accounts receivable and longer payment cycles;

• the need for various local approvals to operate in some countries;

• difficulties in entering some foreign markets without larger-scale local operations;

• compliance with local laws and regulations;

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• unexpected changes in regulatory requirements;

• reduced protection for intellectual property rights in some countries;

• adverse tax consequences as a result of repatriating cash generated from foreign operations to the United States;

• adverse tax consequences, including potential additional tax exposure if we are deemed to have established a permanent establishment outside of the United States;

• the effectiveness of our policies and procedures designed to ensure compliance with the U.S. Foreign Corrupt Practices Act and similar regulations, and foreign laws generally;

• fluctuations in currency exchange rates, which could increase the prices of our products to end-customers outside of the United States, increase the expenses of our international operations by reducing the purchasing power of the U.S. dollar and expose us to foreign currency exchange rate risk if, in the future, we denominate our international sales in currencies other than the U.S. dollar;

• new and different sources of competition; and

• political and economic instability, and terrorism.

Our failure to manage any of these risks successfully could harm our operations and reduce our revenue.

We face risks associated with doing business in China.

We derived 85% and 88%of our revenue for the year ended December 31, 2017 and 2016, respectively, from distributors located in China. Additionally, for the year ended December 31, 2017 and 2016, we derived 64% and 73%, respectively, of our revenue from sales to two of our China based end-customers, which we primarily sell to through one of our China based distributors. As a result, the economic, political, legal and social conditions in China could have a material adverse effect on our business, results of operations and financial condition. In recent years, the Chinese economy has experienced periods of rapid expansion and high rates of inflation. These factors have led to the adoption by the Chinese government, from time to time, of various corrective measures designed to restrict the availability of credit or regulate growth and contain inflation. Various factors may in the future cause the Chinese government to impose controls on credit or prices, or to take other action, which could inhibit economic activity in China, and thereby harm the market for our products. In addition, the legal system in China has inherent uncertainties that may limit the legal protections available in the event of any claims or disputes that we have with third parties, including our ability to protect the intellectual property we develop in China or elsewhere. As China’s legal system is still evolving, the interpretation of many laws, regulations and rules is not always uniform and enforcement of these laws, regulations and rules involve uncertainties, which may limit the remedies available in the event of any claims or disputes with third parties. In addition, any litigation in China may be protracted and result in substantial costs and diversion of resources and management attention. Some of the other risks related to doing business in China include:

• the Chinese government exerts substantial influence over the manner in which we must conduct our business activities;

• restrictions on currency exchange may limit our ability to receive and use our cash effectively;

• increased uncertainties related to the enforcement of intellectual property rights;

• the Chinese government may favor local businesses and make it more difficult for foreign businesses to operate in China on an equal footing, or generally;

• increased uncertainties related to the enforcement of contracts with certain parties; and

• more restrictive rules on foreign investment could adversely affect our ability to expand our operations in China.

As a result of our growing operations in China, these risks could have a material adverse effect on our business, results of operations and financial condition.

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Due to the cyclical nature of the semiconductor, electronics and automotive industries, our operating results may fluctuate significantly, which could adversely affect the market price of our JDSs.

The semiconductor, electronics and automotive industries are highly cyclical and subject to rapid change and evolving industry standards and, from time to time, have experienced significant downturns. These downturns are characterized by decreases in product demand, excess customer inventory and in certain instances accelerated erosion of prices. Any downturns in any of these industries may be severe and prolonged, and any failure of any of these industries to fully recover from downturns could harm our business. The semiconductor industry, in particular, also periodically experiences increased demand and production capacity constraints, which may affect our ability to ship products. Accordingly, our operating results have varied and may vary significantly as a result of the general conditions in the semiconductor, electronics and automotive industries, which could cause our the market price of our JDSs to decline.

Our headquarters are located in the State of California and we have operations in Japan, which we intend to expand, which are areas subject to significant earthquake risks and other natural disasters. Any disruption to our or our third-party vendors’ operations resulting from earthquakes or other natural disasters could cause significant delays in the production or shipment of our product.

Our headquarters are located in Northern California and we have operations in Japan, which we intend to expand. Additionally, our third-party vendors, including TSMC, Fujitsu and ASE, are also located in the Pacific Rim region. The risk of an earthquake, typhoon, tsunami or other extreme weather in the Pacific Rim region including California, Japan, and Taiwan where some of our third-party vendors are located, is significant due to the proximity of major earthquake fault lines. For example, the Kumamoto Great Earthquake in 2016 may impact our end-customers, as many buildings and factories in Japan were damaged, and as a result these end-customers may purchase fewer semiconductors from us than they have historically, which may harm our results. We are also vulnerable to damage from other types of disasters, such as power loss, disruption due to nuclear disaster, fire, floods and similar events. If any such disaster were to occur, our ability to operate our business could be seriously impaired. In addition, we may not have adequate insurance to cover our losses resulting from disasters or other similar significant business interruptions. Any significant losses that are not recoverable under our insurance policies could seriously impair our business and financial condition.

Uncertain geopolitical conditions could have a material adverse effect on our business and the market on which our JDSs currently trade, which could cause the market price of our JDSs to decline.

Our JDSs are listed on the Mothers market on the Tokyo Stock Exchange. In addition, a significant portion of our business is conducted internationally, particularly in Japan. The Japanese economy is exposed to uncertainty in geopolitical conditions, including concerns over North Korea’s nuclear weapons program. Given Japan’s close proximity to North Korea, continuing tensions between North Korea and other countries could have adverse consequences in Japan. In recent months, there have been heightened security concerns regarding North Korea’s nuclear weapons and long-range ballistic missile programs. This has resulted in increased uncertainty regarding both North Korea’s actions and those of the United States. If North Korea were to take an aggressive action, including acts of war, trading on the Mothers market may be disrupted and our business operations in Japan and elsewhere could be disrupted as well. In addition, terrorist acts and other acts of violence and political unrest could have an adverse impact on our business. If our business and the trading of our JDSs on the Mothers market is disrupted as a result of acts of war, hostilities, terrorism or other conditions leading to geopolitical unrest, particularly in the region surrounding Japan, the market price of our JDSs could decline.

Our sales cycle can be lengthy, which could result in uncertainty and delays in generating revenue.

We have experienced a lengthy sales cycle for some of our products, particularly those designed for HD video applications in the automotive market. Our sales cycles typically ranges from three to six months for the security surveillance market and one to three years for the automotive industry. We may experience a delay between the time we increase expenditures for research and development, sales and marketing efforts and inventory to the time we generate revenue, if any, from these expenditures. In addition, because we do not have long-term commitments from our end-customers, we must repeat our sales process on a continual basis even for current end-customers looking to purchase a new product. As a result, our business could be harmed if an end-customer reduces or delays its orders,

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chooses not to release products incorporating our semiconductors or elects not to purchase a new product or product enhancements from us.

We may experience difficulties in transitioning to new wafer fabrication process technologies or in achieving higher levels of design integration, which may result in reduced manufacturing yields, delays in product deliveries and increased expenses.

We periodically evaluate the benefits of migrating our solutions to other technologies in order to improve performance and reduce costs. These ongoing efforts require us from time to time to modify the manufacturing processes for our products and to redesign some products, which in turn may result in delays in product deliveries. We may face difficulties, delays and increased expense as we transition our products to new processes, and potentially to new foundries. We will depend on our third-party foundries as we transition to new processes. We cannot assure you that our third-party foundries will be able to effectively manage such transitions or that we will be able to maintain our relationship with our third-party foundries or develop relationships with new third-party foundries. If we or any of our third-party foundries experience significant delays in transitioning to new processes or fail to efficiently implement transitions, we could experience reduced manufacturing yields, delays in product deliveries and increased expenses, any of which could harm our relationships with our end-customers and our operating results.

As smaller line width geometry manufacturing processes become more prevalent, we intend to move our future products to increasingly smaller geometries in order to reduce costs while integrating greater levels of functionality into our products. This transition will require us and our third-party foundries to migrate to new designs and manufacturing processes for smaller geometry products. We may not be able to achieve smaller geometries with higher levels of design integration or to deliver new integrated products on a timely basis. We periodically evaluate the benefits, on a product-by-product basis, of migrating to smaller geometry process technologies to reduce our costs and increase performance. We are dependent on our relationships with our third-party foundries to transition to smaller geometry processes successfully. We cannot assure you that our third-party foundries will be able to effectively manage any such transition. If we or our third-party foundries experience significant delays in any such transition or fail to implement a transition, our business, financial condition and results of operations could be materially harmed.

The complexity of our products may lead to errors, defects and bugs, which could negatively impact our reputation with end-customers and result in liability or a product recall, particularly in the automotive industry.

Products as complex as ours may contain errors, defects and bugs when first introduced to end-customers or as new versions are released. Our products have in the past experienced such errors, defects and bugs. Delivery of products with production defects or reliability, quality or compatibility problems could significantly delay or hinder market acceptance of the products or result in a costly recall and could damage our reputation and adversely affect our ability to retain existing end-customers and attract new end-customers. Errors, defects or bugs could cause problems with the functionality of our products, resulting in interruptions, delays or cessation of sales of these products to our end-customers. We may also be required to make significant expenditures of capital and resources to resolve such problems. We cannot assure you that problems will not be found in new products, both before and after commencement of commercial production, despite testing by us, our suppliers or our end-customers. Any such problems could result in:

• delays in development, manufacture and roll-out of new products;

• additional development costs;

• loss of, or delays in, market acceptance;

• diversion of technical and other resources from our other development efforts;

• claims for damages by our end-customers or others against us; and

• loss of credibility with our current and prospective end-customers.

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Any such event could have a material adverse effect on our business, financial condition and results of operations.

The automotive industry, in particular, experiences a significant number of product liability claims. As a supplier of products into the automotive market, we face an inherent business risk of exposure to product liability claims in the event that our products, or the equipment into which our products are incorporated, malfunction and result in personal injury or death. We may be named in product liability claims even if there is no evidence that our systems or components caused the accidents. Product liability claims could result in significant losses as a result of expenses incurred in defending claims or the award of damages. The sale of systems and components for the automotive industry entails a high risk of these claims. In addition, we may be required to participate in recalls involving these systems if any of our systems prove to be defective, or we may voluntarily initiate a recall or make payments related to such claims as a result of various industry or business practices or the need to maintain good end-customer relationships. Our other products may also be subject to product liability claims or recalls.

Our costs may increase substantially if our third-party manufacturing contractors do not achieve satisfactory product yields or quality.

The fabrication process is extremely complicated and small changes in design, specifications or materials can result in material decreases in product yields or even the suspension of production. From time to time, the third-party foundries that we contract to manufacture our products may experience manufacturing defects and reduced manufacturing yields related to errors or problems in their manufacturing processes or the interrelationship of their processes with our designs. In some cases, our third-party foundries may not be able to detect these defects early in the fabrication process or determine the cause of such defects in a timely manner.

Generally, in pricing our products, we assume that manufacturing yields will continue to improve, even as the complexity of our products increases. Once our products are initially qualified with our third-party foundries, minimum acceptable yields are established. We are responsible for the costs of the units if the actual yield is above the minimum. If actual yields are below the minimum we are not required to purchase the units. Typically, minimum acceptable yields for our new products are lower at first and gradually improve as we achieve full production. Unacceptably low product yields or other product manufacturing problems could substantially increase overall production time and costs and adversely impact our operating results. Product yield losses will increase our costs and reduce our gross margin. In addition to significantly harming our results of operations and cash flow, poor yields may delay shipment of our products and harm our relationships with existing and potential end-customers.

If we fail to achieve initial design wins for our products, we may lose the opportunity for sales for a significant period of time to end-customers and be unable to recoup our investments in our products.

We expend considerable resources in order to achieve design wins for our products, especially our new products and product enhancements. Once an end-customer designs our solution into a product, it is likely to continue to use the same version of that component for a lengthy period of time due to the significant costs associated with qualifying a new supplier and potentially redesigning the product to incorporate a different component, particularly in the automotive market. If we fail to achieve an initial design win in an end-customer’s qualification process, we may lose the opportunity for significant sales to that end-customer for a number of its products and for a lengthy period of time. Additionally, manufacturers in certain markets, including the automotive market, may require that third-party vendors undergo extensive qualification processes. This qualification process may take up to six months for the security surveillance market and up to three years for the automotive industry, or even longer for some end-customers. If we experience difficulties qualifying our solutions, we may experience delayed or reduced revenue. Furthermore, even if we successfully qualify our solutions with an end-customer, such end-customer may need to qualify other components being sourced for its system and qualify its system as a whole with its end-customers. This may cause us to be unable to recoup our investments in our products, which would harm our business.

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If sales of our end-customers’ products decline or if their products do not achieve market acceptance, our business and operating results could be adversely affected.

Our revenue depends on our end-customers’ ability to commercialize their products successfully. The markets for our end-customers’ products are extremely competitive and are characterized by rapid technological change, and in certain instances, government regulation. Competition in our end-customers’ markets is based on a variety of factors including price, performance, product quality, marketing and distribution capability, customer support, name recognition and financial strength. As a result of rapid technological change, the markets for our end-customers’ products, particularly in the security surveillance market, are characterized by frequent product introductions, short product life cycles, fluctuating demand and increasing product capabilities. As a result, our end-customers’ products may not achieve market success or may become obsolete. We cannot assure you that our end-customers will dedicate the resources necessary to promote and commercialize their products, successfully execute their business strategies for such products, or be able to manufacture such products in quantities sufficient to meet demand or cost-effectively manufacture products at a high volume. Our end-customers do not have contracts with us that require them to manufacture, distribute or sell any products. Moreover, our end-customers, or their customers, may develop internally, or in collaboration with our competitors, technology that they may utilize instead of the technology available to them through us. Our end-customers’ failure to achieve market success for their products, including as a result of general declines in our end-customers’ markets or industries, could negatively affect their willingness to utilize our products, which may result in a decrease in our revenue and negatively affect our business and operating results.

Our revenue also depends on the timely introduction, quality and market acceptance of our end-customers’ products that incorporate our solutions. Our end-customers’ products are often very complex and subject todesign complexities that may result in design flaws, as well as potential defects, errors and bugs. We incur significant design and development costs in connection with designing our solutions for end-customers’ products. If our end-customers discover design flaws, defects, errors or bugs in their products, or if they experience changing market requirements, failed evaluations or field trials, or issues with other vendors, they may delay, change or cancel a project. If we have already incurred significant development costs, we may not be able to recoup those costs, which in turn would adversely affect our business and financial results.

Intellectual property litigation, which is common in our industry, could be costly, harm our reputation, limit our ability to sell our products and divert the attention of management and technical personnel.

Our industry is characterized by frequent litigation regarding patent and other intellectual property rights. For example, in the past, we received a letter inviting us to license technology from a third party, which may be a prelude to claims of infringement and a potential lawsuit. We have certain indemnification obligations to end-customers under our contract development projects with respect to any infringement of third-party patents and intellectual property rights by our products. If a lawsuit were to be filed against us in connection with claims of infringement, our business would be harmed.

Questions of infringement in the HD video applications market involve highly technical and subjective analyses. Litigation may be necessary in the future to enforce any patents we may receive and other intellectual property rights, to protect our trade secrets, to determine the validity and scope of the proprietary rights of others or to defend against claims of infringement or invalidity, and we may not prevail in any future litigation. Litigation, whether or not determined in our favor or settled, could be costly, could harm our reputation, could cause our end-customers to use our competitors’ products and could divert the efforts and attention of management and technical personnel from normal business operations. In addition, adverse determinations in litigation could result in the loss of our proprietary rights, subject us to significant liabilities, require us to seek licenses from third parties or prevent us from licensing our technology or selling our products, any of which could seriously harm our business.

Failure to protect our intellectual property could substantially harm our business.

Our success and ability to compete depend in part upon our ability to protect our intellectual property. We currently rely on a combination of intellectual property rights, including mask work protection, copyrights, trademarks, trade secrets and know-how, in the United States and other jurisdictions. As of December 31, 2017, we do not have any issued patents. We have filed patent applications to help us protect our intellectual property, but

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there is no assurance that these applications will be successful. The steps we take to protect our intellectual property rights may not be adequate, particularly in foreign jurisdictions such as China. In addition, any patents we hold in the future may not adequately protect our intellectual property rights or our products against competitors, and third parties may challenge the scope, validity or enforceability of our issued patents. In addition, other parties may independently develop similar or competing technologies designed around any patents or patent applications that we may hold. Some of our products and technologies are not covered by any patent or patent application, as we do not believe patent protection of these products and technologies is critical to our business strategy at this time. A failure to timely seek patent protection on products or technologies generally precludes us from seeking future patent protection on these products or technologies.

In addition to patent applications, we also rely on contractual protections with our end-customers, suppliers, distributors, employees and consultants, and we implement security measures designed to protect our trade secrets and know-how. However, we cannot assure you that these contractual protections and security measures will not be breached, that we will have adequate remedies for any such breach or that our end-customers, suppliers, distributors, employees or consultants will not assert rights to intellectual property or damages arising out of such contracts.

We may initiate claims against third parties to protect our intellectual property rights if we are unable to resolve matters satisfactorily through negotiation. Litigation brought to protect and enforce our intellectual property rights could be costly, time-consuming and distracting to management. It could also result in the impairment or loss of portions of our intellectual property, as an adverse decision could limit our ability to assert our intellectual property rights, limit the value of our technology or otherwise negatively impact our business, financial condition and results of operations. Additionally, any enforcement of our patents or other intellectual property may provoke third parties to assert counterclaims against us. Our failure to secure, protect and enforce our intellectual property rights could materially harm our business.

A breach of our information and physical security systems may damage our reputation, subject us to lawsuits and adversely affect our business.

Our security systems are designed to protect our end-customers’, suppliers’ and employees’ confidential information, as well as maintain the physical security of our facilities. We also rely on a number of third-party “cloud-based” service providers of corporate infrastructure services relating to, among other things, human resources, electronic communication services and some finance functions, and we are, of necessity, dependent on the security systems of these providers. Any security breaches or other unauthorized access by third parties to the systems of our cloud-based service providers or the existence of computer viruses in their data or software could expose us to a risk of information loss and misappropriation of confidential information. Accidental or willful security breaches or other unauthorized access by third parties to our information systems or facilities, or the existence of computer viruses in our data or software, could expose us to a risk of information loss and misappropriation of proprietary and confidential information belonging to us, our end-customers or our suppliers. Any theft or misuse of this information could result in, among other things, unfavorable publicity, damage to our reputation, difficulty in marketing our products, allegations by our end-customers that we have not performed our contractual obligations, litigation by affected parties and possible financial obligations for liabilities and damages related to the theft or misuse of this information, any of which could have a material adverse effect on our business, financial condition, our reputation, and our relationships with our end-customers and partners. Since the techniques used to obtain unauthorized access or to sabotage systems change frequently and are often not recognized until launched against a target, we may be unable to anticipate these techniques or to implement adequate preventative measures.

We may not be able to secure additional financing on favorable terms, or at all, to meet our future capital needs.

We have funded our operations since inception through equity financings and through sales of our products. In the future, we may require additional capital to fund our ongoing operations, respond to business opportunities, challenges, acquisitions or unforeseen circumstances and may decide to engage in equity or debt financings or enter into credit facilities, but we may not be able to timely secure additional debt or equity financing on favorable terms or at all.

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Any debt financing obtained by us in the future could also involve restrictive covenants relating to our capital-raising activities and other financial and operational matters, which may make it more difficult for us to obtain additional capital and to pursue business opportunities, including potential acquisitions.

If we raise additional funds through issuances of equity, convertible debt securities or other securities convertible into equity, our existing stockholders could suffer significant dilution in their percentage ownership of our company, and any new equity securities we issue could have rights, preferences and privileges senior to those of holders of our common stock. If we are unable to obtain adequate financing or financing on terms satisfactory to us, when we require it, our ability to continue to grow or support our business and to respond to business challenges could be significantly limited.

If we fail to hire additional finance personnel and strengthen our financial reporting systems and infrastructure, we may not be able to timely and accurately report our financial results or comply with the requirements of being a public company, including compliance with the U.S. Sarbanes-Oxley Act, and the U.S. Securities and Exchange Commission, or SEC, and Japanese reporting requirements.

We intend to hire additional accounting and finance staff with technical accounting, SEC and Japanese reporting, and U.S. Sarbanes-Oxley Act compliance expertise. Any inability to recruit and retain such staff would have an adverse impact on our ability to accurately and timely prepare our financial statements. We may be unable to locate and hire qualified professionals with requisite technical, language and public company experience when and as needed. In addition, new employees will require time and training to learn our business and operating processes and procedures. If our finance and accounting organization is unable for any reason to respond adequately to the increased demands that will result from being a public company, the quality and timeliness of our financial reporting may suffer, which could result in the identification of material weaknesses in our internal controls. Any consequences resulting from inaccuracies or delays in our reported financial statements could cause the trading price of our common stock to decline and could harm our business, operating results and financial condition.

If we fail to strengthen our financial reporting systems, infrastructure and internal control over financial reporting to meet the demands placed upon us as a public company, including the requirements of the U.S. Sarbanes-Oxley Act and the requirement to comply with public disclosure regulations in both the U.S. and in Japan, we may be unable to report our financial results timely and accurately and prevent fraud. We expect to incur significant expense and devote substantial management effort toward ensuring compliance with reporting requirements in Japan and the U.S., including the Sarbanes-Oxley Act.

We will continue to incur significantly increased costs and devote substantial management time as a result of operating as a public company that is subject to both U.S. and Japanese regulations.

As a public U.S. company listed in Japan, we will continue to incur significant legal, accounting and other expenses that we did not incur as a private company and even beyond that of a domestic company listed in the United States. For example, we are subject to the reporting requirements of the U.S. Securities Exchange Act of 1934, or the Exchange Act, and are required to comply with the applicable requirements of the U.S. Sarbanes-Oxley Act and the U.S. Dodd-Frank Wall Street Reform and Consumer Protection Act, or the Dodd-Frank Act, as well as rules and regulations subsequently implemented by the SEC, including the establishment and maintenance of effective disclosure and internal controls and the establishment corporate governance practices. Additionally, we are required to comply with applicable securities and disclosure laws in Japan in accordance with the Financial Instruments and Exchange Act of Japan and related regulations, including a requirement to file periodic reports in Japanese, and the rules of the Tokyo Stock Exchange. Compliance with these requirements will continue to increase our legal and financial compliance costs and make some activities more time consuming and costly. We also expect that it will continue to be expensive for us to maintain director and officer liability insurance.

We expect that our management and other personnel will continue to divert attention from operational and other business matters to devote substantial time to these public company requirements. In particular, we expect to continue to incur significant expenses and devote substantial management effort toward ensuring compliance with the requirements of Section 404 of the U.S. Sarbanes-Oxley Act, which will increase when we are no longer an emerging growth company, as defined by the JOBS Act. We also will need to hire additional accounting and financial staff with appropriate public company experience and technical accounting knowledge. We will need to

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hire adequate investor-relations staff in Japan, and additional advisors, consultants and staff, to help us comply with the requirements of listing, and maintaining that listing, in Japan that we would not incur if we had listed our common stock on a domestic exchange. We cannot predict or estimate the amount of additional costs we may incur as a result of becoming a public company or the timing of such costs.

If we are unable to implement and maintain effective internal control over financial reporting in the future, investors may lose confidence in the accuracy and completeness of our financial reports and the market price of the JDSs may be negatively affected.

As a public company, we are required to maintain internal controls over financial reporting and to report any material weaknesses in such internal controls. Section 404 of the U.S. Sarbanes-Oxley Act requires that we evaluate and determine the effectiveness of our internal control over financial reporting and provide a management report on our internal control over financial reporting, which must be attested to by our independent registered public accounting firm to the extent we are no longer an “emerging growth company,” as defined by the JOBS Act. If we have one or more material weaknesses in our internal control over financial reporting, we may not detect errors on a timely basis and our financial statements may be materially misstated. We are in the process of designing and implementing our internal control over financial reporting required to comply with this obligation, which process will be time consuming, costly and complicated. If we identify additional material weaknesses in our internal control over financial reporting, if we are unable to comply with the requirements of Section 404 in a timely manner, if we are unable to determine that our internal control over financial reporting is effective, or if our independent registered public accounting firm is unable to express an opinion as to the effectiveness of our internal control over financial reporting, investors may lose confidence in the accuracy and completeness of our financial reports, the market price of the JDSs could be negatively affected, and we could become subject to investigations by the TSE, the SEC, Japanese securities authorities, or other regulatory authorities, which could require additional financial and management resources.

Regulations related to “conflict minerals” may force us to incur additional expenses, may make our supply chain more complex and may result in damage to our reputation with end-customers.

Pursuant to the Dodd-Frank Act, the SEC has adopted requirements for companies that use certain minerals and metals, known as conflict minerals, in their products, whether or not these products are manufactured by third parties. These requirements will require companies to diligence, disclose and report whether or not such minerals originate from the Democratic Republic of Congo and adjoining countries. The implementation of these requirements could adversely affect the sourcing, availability and pricing of minerals used in the manufacture of our products, and affect our costs and relationships with end-customers, distributors and suppliers as we must obtain additional information from them to ensure our compliance with the disclosure requirement. In addition, we will incur additional costs to comply with the disclosure requirements, including costs related to determining the source of any of the relevant minerals and metals used in our products. Since our supply chain is complex, we may not be able to sufficiently verify the origins for these minerals and metals used in our products through the due diligence procedures that we implement, which may harm our reputation. In such event, we may also face difficulties in satisfying end-customers who require that all of the components of our products are certified as conflict mineral free and these end-customers may discontinue, or materially reduce, purchases of our products, which could result in a material adverse effect on our results of operations and our financial condition may be adversely affected.

We are an emerging growth company. We cannot be certain if the reduced disclosure requirements applicable to emerging growth companies will make our JDSs less attractive to investors.

We are an emerging growth company. Under the JOBS Act, emerging growth companies can delay adopting new or revised accounting standards until such time as those standards apply to private companies. For as long as we continue to be an emerging growth company, we also intend to take advantage of certain other exemptions from various reporting requirements that are applicable to other public companies including the exemption from the auditor attestation requirements of Section 404 of the U.S. Sarbanes-Oxley Act, the reduced disclosure obligations regarding executive compensation, and exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and stockholder approval of any golden parachute payments not previously approved. We cannot predict if investors will find our JDSs less attractive because we will rely on these exemptions. If some

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investors find our JDSs less attractive as a result, there may be a less active trading market for our JDS and the trading price of our JDSs may be more volatile.

In order to comply with environmental laws and regulations, we may need to modify our activities or incur substantial costs, and if we fail to comply with environmental regulations we could be subject to substantial fines or be required to have our suppliers alter their processes.

The HD video application semiconductor industry is subject to a variety of international, federal, state and local governmental regulations directed at preventing or mitigating environmental harm, as well as to the storage, discharge, handling, generation, disposal and labeling of toxic or other hazardous substances. Failure to comply with environmental regulations could subject us to civil or criminal sanctions and property damage or personal injury claims. Compliance with current or future environmental laws and regulations could restrict our ability to expand our business or require us to modify processes or incur other substantial expenses which could harm our business. In response to environmental concerns, some end-customers and government agencies impose requirements for the elimination of hazardous substances, such as lead (which is widely used in soldering connections in the process of semiconductor packaging and assembly), from electronic equipment. For example, the European Union adopted its Restriction on Hazardous Substance Directive which prohibits, with specified exceptions, the sale in the EU market of new electrical and electronic equipment containing more than agreed levels of lead or other hazardous materials and China has enacted similar regulations. Environmental laws and regulations such as these could become more stringent over time, causing a need to redesign technologies, imposing greater compliance costs and increasing risks and penalties associated with violations, which could seriously harm our business.

The issuance of new accounting standards or future interpretations of existing accounting standards could adversely affect our operating results.

We prepare our financial statements in accordance with U.S. Generally Accepted Accounting Principles, or GAAP. A change in those principles could have a significant effect on our reported results and might affect our reporting of transactions completed before a change is announced. GAAP is issued and subject to interpretation by the U.S. Financial Accounting Standards Board, the SEC and various other bodies formed to promulgate and interpret accounting principles. A change in these principles or interpretations could have a significant effect on our reported financial results, and could affect the reporting of transactions completed before the announcement of a change. The issuance of new accounting standards or future interpretations of existing accounting standards, or changes in our business practices or estimates, could result in future changes in our revenue recognition or other accounting policies that could have a material adverse effect on our results of operations.

Management may apply our cash and cash equivalents to uses that do not increase our market value or improve our operating results.

We intend to use our cash and cash equivalents for general corporate purposes, including working capital and capital expenditures. We may also use a portion of our cash and cash equivalents to acquire or invest in complementary technologies, businesses or other assets. We have not reserved or allocated our cash and cash equivalents for any specific purpose, and we cannot state with certainty how management will use our cash and cash equivalents. Accordingly, management has considerable discretion in applying our cash and cash equivalents and may use our cash and cash equivalents for purposes that do not result in any increase in our results of operations or market value. Until the cash and cash equivalents are used, they may be placed in investments that do not produce income or lose value.

Risks Related to Ownership of the JDSs and our Underlying Common Stock

Japanese Depositary Shares are a relatively new form of security and there could be unforeseen difficulties or risks associated with JDSs.

Our initial public offering of JDSs, a form of representative instrument recently authorized by Japanese law was a unique offering for capital stock in a single non-Japanese issuer. The complexity of JDSs as described in these “Risk Factors”, or other unforeseen difficulties or risks associated with JDSs, could increase volatility, decrease liquidity or otherwise negatively affect the trading price of our JDSs. For a further description of the JDSs, please

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read the “Description of Japanese Depositary Shares” found in our prospectus filed pursuant to Rule 424(b)(4), on September 20, 2017.

Prior to our initial public offering in September 2017, there was no prior public market for the JDSs or our underlying common stock, and the market price of our JDSs may be volatile or may decline regardless of our operating performance.

Prior to our initial public offering in September 2017, there was no public market for our common stock, and an active and liquid public market for our stock may not develop or be sustained. The market price of our JDSs may fluctuate significantly in response to numerous factors, many of which are beyond our control, including:

• overall performance of the equity markets in general, in our industry or in the markets we address;

• our operating performance and the performance of other similar companies;

• changes in the estimates of our results of operations that we provide to the public, our failure to meet these projected results or changes in recommendations by securities analysts that elect to follow our company;

• announcements of technological innovations, new products or enhancements to products, acquisitions, strategic alliances or significant agreements by us or by our competitors;

• announcements of new business partners, on the termination of existing business partner arrangements or changes to our relationships with such business partners;

• recruitment or departure of key personnel;

• announcements of litigation or claims against us;

• changes in legal requirements relating to our business;

• the economy as a whole, market conditions in our industry, and the industries of our customers and end-customers;

• the effectiveness and willingness of investors to adopt the JDS instrument;

• trading activity by our principal stockholders;

• the size of our market float; and

• any other factors discussed in this Annual Report on Form 10-K.

In addition, the stock markets have experienced extreme price and volume fluctuations that have affected and continue to affect the market prices of equity securities of many technology companies. Stock prices of many technology companies have fluctuated in a manner unrelated or disproportionate to the operating performance of those companies. In the past, stockholders have filed securities class action litigation following periods of market volatility. If we were to become involved in securities litigation, it could subject us to substantial costs, divert resources and the attention of management from our business, and adversely affect our business.

Due to daily price range limitations under Japanese stock exchange rules, our JDSs may not be sold at a particular price on any particular trading day, or at all.

The JDSs are listed on the Mothers market of the Tokyo Stock Exchange and traded as though the JDSs are shares of Japanese companies. Stock prices on Japanese stock exchanges are determined on a real-time basis by the equilibrium between bids and offers. These exchanges are order-driven markets without specialists or market makers to guide price formation. To prevent excessive volatility, these exchanges set daily upward and downward price fluctuation limits for each stock, based on the previous day’s closing price. Although transactions may continue at the upward or downward limit price if the limit price is reached on a particular trading day, no transactions may take place outside these limits. Consequently, a stockholder wishing to sell their JDSs at a price above or below the relevant daily limit may not be able to sell their JDSs at such price on a particular trading day, or at all.

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If securities analysts do not publish research or reports about our business or if they downgrade the JDSs, the trading price of our JDSs could decline.

The trading market for our JDSs will rely in part on the research and reports that industry or financial analysts publish about us or our business. We do not control these analysts. If few analysts commence coverage of our company, the price and trading volume of the JDSs could suffer. If one or more of the analysts who cover us downgrade the JDSs, or publish unfavorable research about our business, the trading price of our JDSs would likely decline rapidly. If one or more of these analysts cease coverage of our company or fail to publish regularly, we could lose visibility in the market, which in turn could cause the trading price of our JDSs to decline.

Because the trading market for our JDSs is the Mothers market of the Tokyo Stock Exchange, the corporate governance rules of the major U.S. stock exchanges will not apply to us. As a result, our governance practices may differ from those of a company listed on such U.S. exchanges.

Our governance practices may not comply with certain New York Stock Exchange and NASDAQ corporate governance standards, including:

• the requirement that a majority of our board of directors consists of independent directors;

• the requirement that we have an audit committee that is composed entirely of independent directors with a written charter addressing the committee’s purpose and responsibilities; and

• the requirement that we have a compensation committee that is composed entirely of independent directors with a written charter addressing the committee’s purpose and responsibilities.

There can be no assurance that we will voluntarily comply with any of the foregoing requirements. Accordingly, you may not have the same protections afforded to stockholders of companies that are subject to such corporate governance requirements.

JDS holders do not have stockholders’ rights.

JDS holders are not treated as our stockholders, other than as required by law, and accordingly, a JDS holder will not have a stockholder’s rights, including the right to bring a stockholders’ derivative lawsuit against our directors and officers. JDS holders have the rights as beneficiaries as set forth in the trust agreement with Mitsubishi UFJ Trust and Banking Corporation, as Trustee, and Mizuho Securities Co., Ltd., as Initial Settlor, of the trust. JDS holders may exercise voting rights with respect to the common stock underlying their JDSs only in accordance with the provisions of the trust agreement. The Trustees will notify JDS holders of the upcoming vote and arrange to deliver our voting materials. Upon receipt of voting instructions from our JDS holders in the manner set forth in the trust agreement, the Trustees for the JDSs will endeavor to vote the underlying common stock in accordance with these instructions. If an instruction form does not specify any instructions, the Trustees will be deemed to have been instructed to vote in favor of our proposal. The Trustees may not vote in accordance with an instruction or submit a proxy to us unless the Trustees receive the relevant documents necessary to vote the common stock underlying the JDSs at least five business days prior to the date of the stockholders meeting. Should the Trustees not receive information from a JDS holder for any reason, the JDS holders may not be able to receive the necessary documents to exercise their voting rights. As a result, JDS holders may not be able to exercise their right to vote and may lack recourse if their shares of common stock are not voted as requested.

We do not presently intend to facilitate secondary trading of our JDSs or common stock in the United States and we are not taking any of the steps necessary to register our JDSs or common stock with the securities division of any state within the United States or seek an exemption for such secondary trading.

We have not applied to register our JDSs or common stock under the laws of any state or other jurisdiction of the United States other than under the U.S. Securities Act of 1933, nor do we intend to make such an application. Until our JDSs and/or common stock are listed for trading on a U.S. national securities exchange, trading in, or the offer and sale of, our JDSs or common stock will be subject to the securities laws of the various states and jurisdictions of the United States in addition to U.S. federal securities law. As a result, investors may not resell their JDSs or common stock in the United States without satisfying the applicable state securities law or qualifying for an

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exemption therefrom, including the exemptions provided under the U.S. National Securities Markets Improvement Act of 1996. These restrictions and potential costs could be significant burdens to our stockholders seeking to effect resales of our JDSs or common stock within the United States.

If we decide to directly list our common stock in the future, the trading price of our JDSs could decline.

We may decide in the future to directly list our common stock for quotation on an exchange, including in a different country, such as the United States. If we do so, the trading price of our JDSs may decline because a market would develop in our common stock, the security underlying the JDSs, and that market may become more liquid due to a number of factors. If, following this dual-listing investors prefer trading in our common stock, on a different exchange or in a different currency, liquidity in the JDSs may sharply decline and as a result the trading price could decline.

We do not intend to pay dividends for the foreseeable future.

We have never declared nor paid cash dividends on our capital stock. We currently intend to retain any future earnings to finance the operation and expansion of our business, and we do not expect to declare or pay any dividends in the foreseeable future. In addition, our ability to pay cash dividends on our capital stock could be restricted by the terms any future debt financing arrangement. Any return to stockholders will therefore be limited to increases in the price of our JDSs, if any.

Holders of our JDSs may not receive distributions on our common stock or any value for them if it is illegal or impractical to make them available to JDS holders.

The Trustees of the JDSs have agreed to pay cash dividends or other distributions they or the custodian for the JDSs receives on our common stock after deducting fees and expenses. Our JDS holders will receive these distributions in proportion to the number of shares of our common stock that such JDSs represent. However, the Trustees are not responsible for making such payments or distributions if it is unlawful or impractical to make a distribution available to any holders of JDSs. For example, it would be unlawful to make a distribution to a holder of JDSs if it consists of securities that require registration under the U.S. Securities Act but that are not properly registered or distributed pursuant to an applicable exemption from registration. The Trustees are not responsible for making a distribution available to any holders of JDSs if any government approval or registration required for such distribution cannot be obtained after reasonable efforts made by the Trustees. We have no obligation to take any other action to permit the distribution of the JDSs, common stock, rights or anything else to holders of the JDSs. This means that holders of our JDSs may not receive the distributions we make on our common stock or any value for them if it is illegal or impractical for us to make them available. These restrictions may materially reduce the value of the JDSs.

Provisions in our restated certificate of incorporation and bylaws or Delaware law might discourage, delay or prevent a change of control of our company or changes in our management.

Delaware corporate law and our restated certificate of incorporation and bylaws contain provisions that could discourage, delay or prevent a change in control of our company or changes in our board of directors that the stockholders of our company may deem advantageous. Among other things, these provisions:

• require super-majority voting to amend some provisions in our amended and restated certificate of incorporation and bylaws;

• authorize the issuance of “blank check” preferred stock that our board could issue to increase the number of outstanding shares and to discourage a takeover attempt;

• eliminate the ability of our stockholders to call special meetings of stockholders;

• prohibit stockholder action by written consent, which means that all stockholder actions will be required to be taken at a meeting of our stockholders;

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• provide that our board of directors is expressly authorized to make, alter or repeal our bylaws; and

• establish advance notice requirements for nominations for election to our board or for proposing matters that can be acted upon by stockholders at stockholder meetings.

These provisions may frustrate or prevent any attempts by our stockholders to replace or remove our current management by making it more difficult for stockholders to replace members of our board of directors, which is responsible for appointing the members of our management. In addition, we are governed by the provisions of Section 203 of the Delaware General Corporation Law, which generally prohibits a Delaware corporation from engaging in a broad range of business combinations with any “interested” stockholder for a period of three years following the date on which the stockholder became an “interested” stockholder. Any delay or prevention of a change of control transaction or changes in our management could cause the market price of the JDSs to decline.

Our restated certificate of incorporation provides that the Court of Chancery of the State of Delaware is the exclusive forum for substantially all disputes between us and our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers or employees.

Our restated certificate of incorporation provides that the Court of Chancery of the State of Delaware is the exclusive forum for any derivative action or proceeding brought on our behalf, any action asserting a breach of fiduciary duty, any action asserting a claim against us arising pursuant to the Delaware General Corporation Law, our restated certificate of incorporation or our bylaws or any action asserting a claim against us that is governed by the internal affairs doctrine. This choice of forum provision may limit a stockholder’s ability to bring a claim in a judicial forum that it finds favorable for disputes with us or our directors, officers or other employees. This limitation may discourage these types of lawsuits against us and our directors, officers and other employees. Alternatively, if a court were to find the choice of forum provision contained in our amended and restated certificate of incorporation to be inapplicable or unenforceable in an action, we may incur additional costs associated with resolving such action in other jurisdictions.

Item 1B. Unresolved Staff Comments

Not applicable.

Item 2. Properties

Our corporate headquarters and primary research and development and operations facilities occupy approximately 8,512 square feet in San Jose, California, under a lease that expires in February 2020. We also lease properties in China, Japan, South Korea and Taiwan. We do not own any manufacturing facilities, and we contract and license to third parties the production and distribution of our semiconductors. We believe our space is adequate for our current needs and that suitable additional or substitute space will be available to accommodate foreseeable expansion of our operations

Item 3. Legal Proceedings

Although the Company is not currently subject to any litigation, and no litigation is currently threatened against it, the Company may be subject to legal proceedings, claims and litigation, including intellectual property litigation, arising in the ordinary course of business. Such matters are subject to many uncertainties and outcomes and are not predictable with assurance. The Company accrues amounts that it believes are adequate to address any liabilities related to legal proceedings and other loss contingencies that the Company believes will result in a probable loss that is reasonably estimable.

Item 4. Mine Safety Disclosures

Not applicable.

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PART II

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

Market Information

Our JDSs are quoted in Japanese yen on the Mothers market of the Tokyo Stock Exchange under the identification code “M-6697” and began trading publicly in September 2017. Prior to that time, there was no market for our JDSs. The following table sets forth the high and low per share sales prices of our JDSs as reported on the Mothers market of the Tokyo Stock Exchange since our initial public offering (“IPO”):

Year Ended December 31, 2017	High		Low
Third Quarter (from September 29, 2017)	¥	1,372	¥	1,061
Fourth Quarter	¥	2,950	¥	1,561

The following table sets forth the high and low per share sales prices of our JDSs as reported on the Mothers market of the Tokyo Stock Exchange in U.S dollars based on the Telegraphic Transfer Middle Rate quoted by Mitsubishi Tokyo UFJ Financial Group’s official index as of the respective high and low per share sales price date.

Year Ended December 31, 2017	High		Low
Third Quarter (from September 29, 2017)	$	12.17	$	9.41
Fourth Quarter	$	26.23	$	13.81

Dividend Policy

We have never declared nor paid cash dividends on our capital stock. We currently intend to retain any future earnings to finance the operation and expansion of our business, and we do not expect to declare or pay any dividends in the foreseeable future. In addition, our ability to pay cash dividends on our capital stock could be restricted by the terms any future debt financing arrangement. Any return to stockholders will therefore be limited to increases in the price of our JDSs, if any.

Holders of Record

As of December 31, 2017, there were approximately 77 holders of record of our common stock. This figure does not include holders of our common stock nor holders of our JDS, as represented by common stock, whose shares are held of record by banks, brokers or other financial institutions.

Recent Sale of Unregistered Securities

None.

Use of Proceeds from Public Offering of Common Stock

In September 2017, we completed our IPO and sold 1,520,000 JDSs, represented by 1,520,000 shares of our common stock at a price to the public of $5.85 per share and received net proceeds of $8.1 million, after deducting underwriting discounts and commissions of $0.7 million. In October 2017, the managing underwriter of our IPO elected to purchase an additional 228,000 shares of JDSs, represented by 228,000 shares of common stock, pursuant to the underwriters’ over-allotment option. We subsequently completed the sale at the IPO price of $5.85 per share and received net proceeds of $1.2 million, after deducting underwriting discounts and commissions of $0.1 million. Additionally, offering costs incurred by the Company totaled $3.0 million.

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None of the expenses associated with our initial public offering were paid to directors, officers, persons owning 10% or more of any class of our equity securities, or to their associates, or to our affiliates. The JDSs and shares sold in the initial public offering were registered under the Securities Act pursuant to a registration statement on Form S-1 (File No. 333-219992) that was declared effective by the Securities and Exchange Commission on September 19, 2017. Mizuho Securities Co., Ltd, Daiwa Securities Co. Ltd. and SBI Securities Co. Ltd. were the underwriters for the offering. Our shares commenced trading on the Mothers market of the Tokyo Stock Exchange on September 29, 2017.

There has been no material change in the planned use of proceeds from our initial public offering as described in our final prospectus filed with the Securities and Exchange Commission on September 20, 2017 pursuant to Rule 424(b).

Issuer Purchases of Equity Securities

We issued shares of common stock related to exercises of unvested stock options, or early exercised stock options. The shares of common stock issued in connection with the early exercised stock options are subject to our repurchase right at the original purchase price. The proceeds are initially recorded as a liability and reclassified to common stock and additional paid in capital as our repurchase right lapses. For the year ended December 31, 2017, we repurchased 45,666 shares related to unvested early exercised stock options due to termination.

Purchases of Unregistered Equity Securities by the Issuer

None.

Stock Performance Graph

The following graph shows a comparison from September 29, 2017 (the date our JDSs commenced trading on the Mothers market of the Tokyo Stock Exchange) through December 31, 2017 of the cumulative total return for our JDSs. The graph assumes that $100 was invested on September 29, 2017 in the JDS of Techpoint, Inc., the NASDAQ Composite Index and the Japan TOPIX Index, and assumes reinvestment of any dividends. The stock price performance on the following graph is not necessarily indicative of future stock price performance. The closing price of our JDSs on December 29, 2017, the last trading day of the year ended December 31, 2017, was ¥1,960 or $17.35 based on the Telegraphic Transfer Middle Rate quoted by Mitsubishi Tokyo UFJ Financial Group’s official index as of December 29, 2017.

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The information on the above graph shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section or Sections 11 and 12(a)(2) of the Securities Act, and shall not be incorporated by reference into any registration statement or other document filed by us with the SEC, whether made before or after the date of this Annual Report on Form 10-K, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Securities Authorized for Issuance Under Equity Compensation Plans

The information required by this item is incorporated herein by reference to our definitive proxy statement for our 2017 annual meeting of stockholders, which will be filed not later than 120 days after the end of our fiscal year ended December 31, 2017.

Item 6. Selected Financial Data

The selected consolidated statement of operations data for the year ended December 31, 2017, 2016 and 2015 and the consolidated balance sheet data as of December 31, 2017 and 2016 are derived from our audited consolidated financial statements included elsewhere in this Annual Report on Form 10-K. The selected consolidated balance sheet data as of December 31, 2015 is derived from audited financial statements not included in this Annual Report on Form 10-K. Our historical results are not necessarily indicative of the results that may be expected in the future. The selected consolidated financial data below should be read in conjunction with the section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in Part II, Item 7 of this Annual Report on Form 10-K and our consolidated financial statements and related notes included in Part II, Item 8 of this Annual Report on Form 10-K.

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	Year Ended
	December 31,
	2017			2016		2015
Revenue	$	31,142		$	27,156	$	20,245
Cost of revenue		13,221			12,735		8,803
Gross profit		17,921			14,421		11,442
Operating expenses
Research and development		5,383			4,380		4,964
Selling, general and administrative		6,193			4,678		2,592
Total operating expenses		11,576			9,058		7,556
Income from operations		6,345			5,363		3,886
Other income (expense)		(73	)		—		3
Income before income taxes		6,272			5,363		3,889
Income taxes		2,515			1,882		(168	)
Net income	$	3,757		$	3,481	$	4,057
Net income allocable to preferred stockholders	$	1,936		$	2,627	$	3,170
Net income allocable to common stockholders	$	1,821		$	854	$	887
Net income per share allocable to common stockholders:
Basic	$	0.25		$	0.24	$	0.30
Diluted	$	0.24		$	0.23	$	0.28
Weighted-average shares outstanding in computing    net income per share allocable to common stockholders
Basic		7,145,641			3,493,946		3,007,311
Diluted		8,056,329			4,358,387		3,774,146

	December 31,
	2017		2016		2015
Cash and cash equivalents	$	21,536	$	10,006	$	9,463
Property and equipment - net	$	325	$	401	$	170
Total assets	$	26,592	$	15,552	$	12,483
Total current liabilities	$	1,491	$	2,226	$	3,181
Convertible preferred stock	$	—	$	8,794	$	8,794
Total stockholders’ equity	$	24,968	$	13,236	$	9,240

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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 of our financial condition and results of operations together with the consolidated financial statements and related notes that are included elsewhere in this Annual Report on Form 10-K. This discussion contains forward-looking statements based upon current expectations that involve risks and uncertainties. Our actual results may differ materially from those anticipated in these forward-looking statements as a result of various factors, including those set forth under “Risk Factors” included in Part I, Item 1A or in other parts of this Annual Report on Form 10-K.

Overview

We are a fabless semiconductor company that designs, markets and sells mixed-signal integrated circuits for multiple video applications in the security surveillance and automotive markets. Our integrated circuits are enabling the transition from standard definition, or SD, video to high definition, or HD, video in the security surveillance and automotive industries.

Our solutions take HD video signals from a camera and convert them into analog signals for reliable long distance transmission, then convert the HD analog signal into the appropriate format for video processing and display. Our HD analog technology operates at the same 1080p HD resolution as digital HD, but processes video in an HD analog format and transmits the video in this same analog format, thereby eliminating the need for any compression or decompression. Our integrated circuits are based on our proprietary architecture and mixed signal technologies that we believe provide high video quality, enable high levels of integration and are cost effective. Our integrated circuits are used by security surveillance manufacturers, such as Hikvision in China, IDIS in South Korea and AVTech in Taiwan. These three manufacturers are each a leading security surveillance manufacturer in its respective country and together accounted for 60% and 66% of our revenue for the year ended December 31, 2017 and 2016, respectively.

We derive our revenue from sales of our mixed-signal integrated circuits into the security surveillance and automotive camera markets. We began shipping our products in 2013 and to date, we have sold over 63 million integrated circuits. Our revenue has increased 15% to $31.1 million for the year ended December 31, 2017 from $27.2 million for the year ended December 31, 2016. We recorded net income of $3.8 million and $3.5 million for the year ended December 31, 2017 and 2016, respectively. The security surveillance market accounted for a majority of our revenue for the year ended December 31, 2017 and 2016. We have secured design wins with major automotive equipment manufacturers to sell our solutions to them for automotive backup cameras. We recognized $3.0 million and $0.6 million of revenue on sales into the automotive market for the year ended December 31, 2017 and 2016, respectively.

We sell our products to distributors that fulfill third-party orders for our products. We also sell directly to original design manufacturers, or ODMs. For the year ended December 31, 2017, 2016 and 2015, we derived substantially all of our revenue from products sold to distributors as compared to products sold to ODMs directly.

We undertake significant product development efforts well in advance of a product’s release, and in advance of receiving purchase orders. Our product development efforts, which are focused on developing new designs with broad demand and potential for future derivative products, typically take from six to 24 months until production begins, depending on the product’s complexity. If we secure a design win, we believe the system designer is likely to continue to use the same or enhanced versions of our product across a number of their models, tending to extend the life cycles of our products. Conversely, if a competitor secures the design win, it may be difficult for us to sell into the end-customer’s application for an extended period. Our sales cycle typically ranges from three to six months for the security surveillance market and one to three years for the automotive industry. Due to the length of our product development and sales cycle, the majority of our revenue for any period is likely to be weighted toward products introduced for sale in the prior one or two years. As a result, our present revenue is not necessarily representative of future sales because our future sales are likely to be comprised of a different mix of products, some of which are now in the development stage.

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We employ a fabless manufacturing strategy and use market-leading suppliers for all phases of the manufacturing process, including wafer fabrication, assembly, testing and packaging. This strategy significantly reduces the capital investment that would otherwise be required to operate manufacturing facilities of our own.

We have made significant investments in research and development in order to develop our products to attract and retain end-customers. For the year ended December 31, 2017 and 2016, our research and development expense was $5.4 million and $4.4 million, respectively. We expect that our research and development expenses will increase significantly in the future as we pursue additional opportunities. As of December 31, 2017, we had 63 employees, 22 of whom are in research and development. Our headquarters are located in San Jose, California, with additional operations in Japan, Taiwan, China and South Korea.

Key Factors Affecting Our Results of Operations

The following are key factors that impact our results of operations:

Ability to attract and retain customers that make large orders. For the year ended December 31, 2017 and 2016, three of our end-customers accounted for 70% and 77% of our revenue, respectively, one of which, Hikvision, the largest security surveillance manufacturer in China, accounted for 59% and 62%, respectively. While we expect the composition of our end-customers to change over time, our business and operating results will depend on our ability to continually target new and retain existing end-customers that make large orders.

Design wins with new and existing customers. We believe our products provide high-quality HD video with an attractive combination of characteristics, at a lower overall cost than competing solutions. In order to get our solutions designed into our end-customer’s products, we work with our end-customers and potential end-customers to understand their product roadmaps and strategies. We consider design wins to be critical to our future success. We define a design win as the successful completion of the evaluation stage, where an end-customer has tested our product, verified that our product meets its requirements and qualified our integrated circuits for their products. We have secured design wins with major automotive manufacturers to sell our solutions to them for automotive backup cameras. The revenue that we generate, if any, from each design win can vary significantly. Our long-term sales expectations are based on forecasts from end-customers, internal estimates of end-customer demand factoring in expected time to market for end-customer products incorporating our solutions and associated revenue potential and internal estimates of overall demand based on historical trends.

Pricing, product cost and gross margins of our products. Our gross margin has been and will continue to be affected by a variety of factors, including the timing of changes in pricing, shipment volumes, new product introductions, changes in product mixes, changes in our purchase price of fabricated wafers and assembly and test service costs, manufacturing yields and inventory write downs, if any. In general, newly introduced products and products with higher performance and more features tend to be priced higher than older, more mature products. Average selling prices in the semiconductor industry typically decline as products mature. Consistent with this historical trend, we expect that the average selling prices of our products will decline as they mature. In the normal course of business, we will seek to offset the effect of declining average selling prices on existing products by reducing manufacturing costs and introducing new and higher value-added products. If we are unable to maintain overall average selling prices or offset any declines in average selling prices with realized savings on product costs, our gross margin will decline.

Product adoption and safety regulations in the automotive market. We have secured design wins with major automotive equipment manufacturers to sell our solutions to them for automotive backup cameras. Certain jurisdictions, including the United States, have passed laws and regulations requiring that all new cars sold after a certain date must contain back-up cameras. If these jurisdictions do not maintain and implement these rules, or if back-up cameras are not put into automobiles sold in other locations as well, or do so more slowly than we expect, our financial results could be adversely affected.

Investment in growth. We have invested, and intend to continue to invest, in expanding our operations, increasing our headcount, developing our products and differentiated technologies to support our growth and expanding our infrastructure. We expect our total operating expenses to increase significantly in the foreseeable future to meet our growth objectives. We plan to continue to invest in our sales and support operations throughout

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the world, with a particular focus in the near term of adding additional sales and field applications personnel in the Asia-Pacific region to further broaden our support and coverage of our existing end-customer base, in addition to developing new end-customer relationships and generating design wins. We also intend to continue to invest additional resources in research and development to support the development of our products and differentiated technologies. Any investments we make in our sales and marketing organization or research and development will occur in advance of experiencing any benefits from such investments, and the return on these investments may be lower than we expect. In addition, as we invest in expanding our operations into new areas internationally, our business and results will become further subject to the risks and challenges of operations in those locations, including potentially higher operating expenses and the impact of legal and regulatory developments.

Components of Consolidated Statements of Operations

Revenue

We derive substantially all of our revenue through the sale of our products to distributors who, in turn, sell to our end-customers, which consists of ODMs, contract manufacturers and design houses. We recognize revenue from product sales when persuasive evidence of an arrangement exists and all other revenue recognition criteria are met, which generally occurs when we ship our products to the distributors.

Cost of revenue

Cost of revenue primarily consists of costs paid to our third-party manufacturers for wafer fabrication, assembly and testing of our products. To a lesser extent, cost of revenue also includes write-downs of inventory for excess and obsolete inventory, depreciation of test equipment, and expenses relating to manufacturing support activities, including personnel-related costs, logistics and quality assurance and shipping.

Research and Development Expenses

Research and development expenses consist primarily of compensation and associated costs of employees engaged in research and development, contractor costs, tape-out costs, development testing and evaluation costs, and depreciation expense. Before releasing new products, we incur charges for mask sets, prototype wafers and mask set revisions, which we refer to as tape-out costs. Tape-out costs cause our research and development expenses to fluctuate because they are not incurred uniformly every quarter. We expect our research and development costs to increase in absolute dollars in the future as we increase our investment in developing new products and headcount to support our development efforts.

Selling, General and Administrative Expenses

Selling expenses consist primarily of personnel-related costs for our sales, business development, marketing, and applications engineering activities, promotional and other marketing expenses, and travel expenses. We expect selling expenses to increase in absolute dollars for the foreseeable future as we continue to expand our sales teams and increase our marketing activities.

General and administrative expenses consist primarily of personnel-related costs, consulting expenses and professional fees. Professional fees principally consist of legal, audit, tax and accounting services. We expect general and administrative expenses to increase in absolute dollars for the foreseeable future as we hire additional personnel, make improvements to our infrastructure and incur significant additional costs for the compliance requirements of operating as a public company, including higher legal, insurance and accounting expenses, particularly with respect to operating as a U.S. company that is publicly traded in Japan.

Personnel-related costs, including salaries, benefits, bonuses and stock-based compensation, are the most significant component of each of selling expenses and general and administrative expenses.

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Income Tax Provision

The provision for income taxes consists of our estimated federal, state and foreign income taxes based on our pre-tax income. Our provision differs from the federal statutory rate primarily due to the research tax credit, non-deductible stock-based compensation, and the change to deferred tax assets resulting from the reduction in the U.S. federal tax rate from 34% to 21%.

Due to tax law changes in December 2017, the Company’s income tax provision for the year ended December 31, 2017 includes a $0.3 million one-time remeasurement charge for deferred taxes. This one-time remeasurement caused the effective tax rate to increase to 40.07% from 35.09% for the year ended December 31, 2017 and 2016, respectively. Please see Note 10 of Part II, Item 8 of this Annual Report on Form 10-K for further discussion.

Results of Operations

The following table sets forth our consolidated results of operations for the periods shown:

	Year Ended
	December 31,
	2017			2016		2015
Revenue	$	31,142		$	27,156	$	20,245
Cost of revenue (1)		13,221			12,735		8,803
Gross profit		17,921			14,421		11,442
Operating expenses: (1)
Research and development		5,383			4,380		4,964
Selling, general and administrative		6,193			4,678		2,592
Total operating expenses		11,576			9,058		7,556
Income from operations		6,345			5,363		3,886
Other income (expense)		(73	)		—		3
Income before income taxes		6,272			5,363		3,889
Income taxes		2,515			1,882		(168	)
Net income	$	3,757		$	3,481	$	4,057

(1) Includes stock-based compensation expense as follows (in thousands):

	Year Ended
	December 31,
	2017		2016		2015
Cost of revenue	$	31	$	15	$	7
Research and development		273		102		73
Selling, general and administrative		1,144		322		84
Total	$	1,448	$	439	$	164

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The following table sets forth the consolidated statements of operations data for each of the periods presented as a percentage of revenue:

	Year Ended
	December 31,
	2017			2016			2015
Revenue		100	%		100	%		100	%
Cost of revenue		42			47			43
Gross profit		58			53			57
Operating expenses:
Research and development		18			16			25
Selling, general and administrative		20			17			13
Total operating expenses		38			33			38
Income from operations		20			20			19
Other income (expense)		0			0			0
Income before income taxes		20			20			19
Income taxes		8			7			(1	)
Net income		12	%		13	%		20	%

Comparison of the Year Ended December 31, 2017 and December 31, 2016

Revenue

	Year Ended December 31,				Change					Year Ended December 31,				Change
	2017		2016		Amount		%			2016		2015		Amount		%
Revenue	$	31,142	$	27,156	$	3,986		15	%	$	27,156	$	20,245	$	6,911		34	%

Revenue increased by $4.0 million, or 15%, for the year ended December 31, 2017 as compared to the year ended December 31, 2016. This increase was primarily due to a 22% increase in volume of shipments in the security surveillance market and also in the automotive market as a result of increased demand for our HD-TVI receiver products. These increases were offset by a 6% decrease in overall average selling price due to change in product mix for the year ended December 31, 2017 as compared to the year ended December 31, 2016. For the year ended December 31, 2017 and 2016, we recorded revenue of $3.0 million and $0.6 million on sales into the automotive market, respectively.

Revenue increased by $6.9 million, or 34%, for the year ended December 31, 2016 as compared to the year ended December 31, 2015. The increase was primarily due to a 43% increase in volume of shipments during the year as a result of increased demand for our HD-TVI receiver products in the video security surveillance market, offset by a 6% decrease in overall average selling price due to product mix. For the year ended December 31, 2016, we recorded revenue of $0.6 million for mixed-signal solutions sales into the automotive market whereas substantially all of our revenue for the year ended December 31, 2015 was derived from sales into the video security surveillance market.

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Revenue by geographic region

The table below sets forth the major components of the change in revenue by geographic region for the year ended December 31, 2017, 2016, and 2015:

	Year Ended
	December 31,
	2017			2016			2015
China		85	%		88	%		87	%
South Korea		9			6			7
Taiwan		3			4			6
Other		3			2			—
Total revenue		100	%		100	%		100	%

We derived substantially all of our revenue from sales to customers in Asia, and China in particular, which accounted for 85%, 88%, and 87% of our revenue for the year ended December 31, 2017, 2016, and 2015, respectively.

Cost of revenue and gross margin

	Year Ended December 31,						Change					Year Ended December 31,						Change
	2017			2016			Amount		%			2016			2015			Amount		%
Cost of revenue	$	13,221		$	12,735		$	486		4	%	$	12,735		$	8,803		$	3,932		45	%
Gross margin		58	%		53	%							53	%		57	%

Cost of revenue increased $0.5 million, or 4%, for the year ended December 31, 2017 as compared to the year ended December 31, 2016. Gross margin increased to 58% for the year ended December 31, 2017 from 53% for the year ended December 31, 2016. The increase in cost of revenue was primarily driven by a 22% increase in unit sales, and changes in product mix, which resulted in a positive impact on gross margin due to the sales volume increase of lower cost, higher margin products offset by decreased inventory write downs of $0.4 million and other period costs.

Cost of revenue increased $3.9 million, or 45%, for the year ended December 31, 2016 as compared to the year ended December 31, 2015. Gross margin decreased to 53% for the year ended December 31, 2016 from 57% for the year ended December 31, 2015. The increase in cost of revenue was primarily driven by a 43% increase in unit sales, and changes in product mix, which resulted in a negative impact on gross margin due to the sales volume increase of higher cost, lower margin products. The cost of revenue increase and gross margin decrease was also due to increased inventory write downs of $0.7 million and, to a lesser extent, increased warranty expense related to the higher sales volumes.

Gross margin fluctuations are due to changes in product mix and fluctuations in period costs. We expect gross margins to fluctuate in future periods due to changes in product mix, average unit selling prices, manufacturing costs, manufacturing yields, levels of inventory valuation, if any, and levels of product demand.

Research and development expense

	Year Ended December 31,				Change					Year Ended December 31,				Change
	2017		2016		Amount		%			2016		2015		Amount			%
Research and development	$	5,383	$	4,380	$	1,003		23	%	$	4,380	$	4,964	$	(584	)		(12	)%

Research and development expense increased $1.0 million, or 23%, for the year ended December 31, 2017 as compared to the year ended December 31, 2016. This increase was primarily due to an increase of $0.8 million in

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design, prototype, and software expenses and a $0.2 million increase in stock-based compensation expense as a result of our post-IPO stock price increase and a 10% increase in headcount due to expanding operations.

Research and development expenses decreased $0.6 million, or 12%, for the year ended December 31, 2016 as compared to the year ended December 31, 2015. This decrease was primarily due to a $1.4 million impact of fewer tape-outs during the year, partially offset by $1.0 million of increased personnel costs associated with a 40% increase in research and development headcount related to expanded research and development activities.

Selling, general and administrative expense

	Year Ended December 31,				Change					Year Ended December 31,				Change
	2017		2016		Amount		%			2016		2015		Amount		%
Selling, general and administrative	$	6,193	$	4,678	$	1,515		32	%	$	4,678	$	2,592	$	2,086		80	%

Selling, general and administrative expenses increased by $1.5 million, or 32%, for the year ended December 31, 2017 as compared to the year ended December 31, 2016. This increase was primarily due to a $1.3 million increase in personnel-related expenses driven by a $0.8 million increase in stock-based compensation expense as a result of our post-IPO stock price increase and a 13% increase in headcount due to expanding operations. Legal and other professional service fees increased $0.2 million due to costs associated with being a public company.

Selling, general and administrative expenses increased by $2.1 million, or 80%, for the year ended December 31, 2016 as compared to the year ended December 31, 2015. This increase was primarily due to a $1.7 million increase in personnel-related expenses driven by a 61% increase in headcount associated with growing sales and marketing efforts and expanding accounting and finance. Additionally, accounting and audit fees increased $0.4 million as we continued to prepare to become a public company, and, to a lesser extent, rent and facility expenses increased as a result of establishment of foreign offices.

Other income and expense

	Year Ended December 31,					Change				Year Ended December 31,				Change
	2017			2016		Amount			%	2016		2015		Amount			%
Other income (expense)	$	(73	)	$	—	$	(73	)	*	$	—	$	3	$	(3	)		(100	)%

* Not meaningful given the insignificant amount of other income (expense) for the year ended December 31, 2016.

Other expense increased by $73,000 for the year ended December 31, 2017 primarily due to the foreign currency exchange loss related to IPO proceeds received during the period.

Other income decreased by $3,000, or 100%, for the year ended December 31, 2016 as compared to the year ended December 31, 2015. This decrease was primarily due to the foreign currency exchange loss associated with the activities of the foreign offices established during 2016, offset by interest income during the period.

Provision for income taxes

	Year Ended December 31,				Change					Year Ended December 31,					Change
	2017		2016		Amount		%			2016		2015			Amount		%
Income taxes	$	2,515	$	1,882	$	633		34	%	$	1,882	$	(168	)	$	2,050		(1220	)%

The provision for income taxes increased by $0.6 million, or 34%, for the year ended December 31, 2017 as compared to the year ended December 31, 2016. The increase in the provision for income taxes is primarily due to a

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$0.3 million one-time remeasurement of deferred taxes due to tax law changes during December 2017. This one-time remeasurement caused the effective tax rate to increase to 40.07% from 35.09% for the year ended December 31, 2017 and 2016, respectively. Please see Note 10 of Part II, Item 8 of this Annual Report on Form 10-K for further discussion.

The provision for income taxes increased by $2.1 million, or 1220%, for the year ended December 31, 2016 as compared to the year ended December 31, 2015. The effective tax rate for the year ended December 31, 2016 and 2015 was 35.09% and (4.32)%, respectively. The increase in effective tax rate is due to the release of the valuation allowance during the year ended December 31, 2015. There was no such release during the year ended December 31, 2016.

Liquidity and Capital Resources

Since inception, we have funded our operations primarily with revenue from sales of our mixed-signal integrated circuits and with gross proceeds from our IPO. In September 2017, we completed our IPO and sold 1,520,000 JDSs, represented by 1,520,000 shares of our common stock at a price to the public of $5.85 per share and received net proceeds of $8.1 million, after deducting underwriting discounts and commissions of $0.7 million. In October 2017, the managing underwriter of our IPO elected to purchase an additional 228,000 shares of JDSs, represented by 228,000 shares of common stock, pursuant to the underwriters’ over-allotment option. We subsequently completed the sale at the IPO price of $5.85 per share and received net proceeds of $1.2 million, after deducting underwriting discounts and commissions of $0.1 million. Additionally, offering costs incurred by the Company totaled $3.0 million.

Our primary use of cash is to fund our operations as we continue to grow our business. Cash used to fund operating expenses is impacted by the timing of when we pay expenses, as reflected in the changes in our outstanding accounts payable and accrued expenses.

Our cash and cash equivalents as of December 31, 2017 were $21.5 million. We believe our existing cash and cash equivalents, and cash we expect to generate from operations, will be sufficient to meet our anticipated cash needs for at least the next 12 months. Our future capital requirements will depend on many factors, including our growth rate, the timing and extent of our spending to support research and development activities, the timing and cost of establishing additional sales and marketing capabilities, the introduction of new and enhanced products and our costs to implement new manufacturing technologies or potentially acquire and integrate other companies or assets. In the event that additional financing is required from outside sources, we may not be able to raise it on terms acceptable to us or at all. Any debt financing obtained by us in the future could also involve restrictive covenants relating to our capital-raising activities and other financial and operational matters, which may make it more difficult for us to obtain additional capital and to pursue business opportunities, including potential acquisitions. Additionally, if we raise additional funds through further issuances of equity, convertible debt securities or other securities convertible into equity, our existing stockholders could suffer significant dilution in their percentage ownership of our company, and any new equity securities we issue could have rights, preferences and privileges senior to those of holders of our common stock. If we are unable to obtain adequate financing or financing on terms satisfactory to us when we require it, our ability to continue to grow or support our business and to respond to business challenges could be significantly limited.

A summary of operating, investing and financing activities are shown in the following table:

	Year Ended
	December 31,
	2017			2016			2015
Net cash provided by operating activities	$	4,359		$	1,608		$	5,287
Net cash used in investing activities		(170	)		(346	)		(88	)
Net cash provided by (used in) financing activities		7,341			(719	)		184
Net increase in cash and cash equivalents	$	11,530		$	543		$	5,383

39

Operating Activities

Our primary source of cash from operating activities has been from cash collections from our customers. We expect cash inflows from operating activities to be affected by fluctuations in sales. Our primary uses of cash from operating activities have been for personnel costs and investments in research and development and sales and marketing.

During the year ended December 31, 2017, net cash provided by operating activities was $4.4 million, primarily due to net income of $3.8 million, a net increase in non-cash charges of $2.0 million primarily driven by stock-based compensation, depreciation and amortization and deferred income taxes, offset by a net decrease in our operating assets and liabilities of $1.4 million. The net change in our operating assets and liabilities was primarily due to a $0.3 million increase in inventory to support anticipated demand, a $0.7 million increase in prepaid expenses and other current assets for purchased software, and a $0.7 million decrease in customer deposits attributable to timing of customer pre-payments, partially offset by a $0.1 million increase in accounts payable driven by the timing of payments made to our vendors and $0.2 million increase in accrued expenses.

During the year ended December 31, 2016, net cash provided by operating activities was $1.6 million, primarily due to net income of $3.5 million, a net increase in non-cash charges of $0.4 million primarily driven by stock-based compensation, depreciation and amortization and deferred income taxes, offset by a net decrease in our operating assets and liabilities of $2.3 million. The net change in our operating assets and liabilities was primarily due to a $1.2 million increase in inventory to support anticipated demand, a $0.8 million decrease in accounts payable driven by the timing of payments made to our vendors, a $0.6 million decrease in customer deposits attributable to timing of customer pre-payments, and a $0.1 million increase in accounts receivable, partially offset by a $0.2 million increase in accrued expenses and a $0.2 million decrease in prepaid expenses and other current assets.

During the year ended December 31, 2015, net cash provided by operating activities was $5.3 million, primarily due to net income of $4.1 million, a net increase in our operating assets and liabilities of $1.8 million, partially offset by a net decrease in non-cash charges of $0.6 million, primarily driven by deferred income taxes, depreciation and amortization and stock-based compensation. The net change in our operating assets and liabilities was primarily due to a $1.3 million increase in customer deposits primarily attributable to timing of customer pre-payments and a $1.1 million increase in accounts payable as a result of ramping up our sales and marketing efforts, partially offset by a $0.3 million increase in inventory and a $0.3 million increase in prepaid and other current assets.

Investing Activities

Our investing activities consist primarily of purchases of property and equipment. We expect to continue to make capital expenditures to support the continued growth of our business. During the year ended December 31, 2017, 2016 and 2015, cash used in investing activities was $0.2 million, $0.3 million and $0.1 million, respectively, due to purchases of property and equipment.

Financing Activities

Cash flows used in financing activities consists primarily of payments for activities related to the process of becoming a public company and proceeds received from IPO and stock option exercises. During the year ended December 31, 2017, cash provided by financing activities was $7.3 million due to IPO proceeds received of $9.3 million, net proceeds from the exercise of stock options of $0.1 million, offset by payments for deferred offering costs of $2.1 million. During the year ended December 31, 2016, cash used in financing activities was $0.7 million primarily due to payments for deferred offering costs of $0.8 million offset by net proceeds from the exercise of stock options of $0.1 million. During the year ended December 31, 2015, cash provided by financing activities was $0.2 million due to net proceeds from the exercise of stock options.

40

Contractual Obligations

We are required to make future payments under certain operating leases. Our outstanding contractual obligations as of December 31, 2017 are summarized in the following table:

			Payments Due by Period
	Total		Less than 1 year		1 to 3 years		3-5 years		More than 5 years
Operating leases	$	1,049	$	469	$	580	$	—	$	—
Purchase commitments		105		105		—		—		—
Total	$	1,154	$	574	$	580	$	—	$	—

Obligations under contracts that we can cancel without a significant penalty are not included in the table above.

Off Balance Sheet Arrangements

During the periods presented, we did not have any relationships with unconsolidated entities or financial partnerships, such as entities referred to as structured finance or special purpose entities, which would have been established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes.

Critical Accounting Policies, Significant Estimates and Judgments

Our financial statements are prepared in accordance with U.S. generally accepted accounting principles, or GAAP. The preparation of these financial statements requires us to make estimates, assumptions and judgments that affect the reported amounts of assets, liabilities, revenue, expenses, and related disclosures. We evaluate our estimates, assumptions and judgments on an ongoing basis. Our estimates, assumptions and judgments are based on historical experience and various other factors that we believe to be reasonable under the circumstances. Different assumptions and judgments would change the estimates used in the preparation of our financial statements, which, in turn, could change the results from those reported.

The following paragraphs discuss the items that we believe are the critical accounting policies most affected by significant management estimates and judgments. Please see Note 1 of Part II, Item 8 of this Annual Report on Form 10-K for further information on all significant accounting policies.

Revenue Recognition

We recognize revenue from product sales when persuasive evidence of an arrangement exists, the selling price is fixed or determinable, delivery has occurred, and collectability is reasonably assured. Our customers do not have rights of return except pursuant to our standard warranty terms. Provisions for warranty returns are provided for at the time product sales are recognized based on historical experience or specific identification of an event necessitating a reserve. Generally, we meet these conditions upon shipment because, in most cases, title and risk of loss passes to the customer at that time.

For the year ended December 31, 2017, 2016 and 2015, substantially all of our customers paid in advance of shipment, but we may not be able to continue this practice in the future, particularly as we sell into the automotive market. Additionally, for the year ended December 31, 2017, 2016 and 2015, we did not offer stock rotation, price protection or return rights.

Inventory

We record inventory at the lower of standard cost (which generally approximates actual cost on a first-in, first-out basis) or market value. Upon the adoption of ASU 2015-11 in the first quarter of fiscal 2017, inventories are stated at the lower of cost or net realizable value. The carrying value of inventory is adjusted for excess and obsolete inventory based on inventory age, shipment history and the forecast of demand over a specific future period. At the point of loss recognition, a new lower cost basis for that inventory is established and subsequent changes in facts

41

and circumstances do not result in the restoration or increase in that new cost basis. The semiconductor markets that we serve are volatile and actual results may vary from forecast or other assumptions, potentially affecting our assessment of excess and obsolete inventory which could have a material effect on our results of operations.

Income Taxes

We account for income taxes using an asset and liability approach, which requires recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been recognized in the consolidated financial statements, but have not been reflected in our taxable income. Valuation allowances are established to reduce deferred tax assets as necessary based on available objective evidence. We believe it is more likely than not that we will realize benefits of deductible differences and have, therefore, not recorded a full valuation allowance. We recognize in our consolidated financial statements the impact of a tax position that based on its technical merits is more likely than not to be sustained upon examination.

Stock-based Compensation

We measure and recognize compensation expense for all stock-based awards granted to our employees and other service providers, including stock options and restricted stock unit awards, based on the estimated fair value of the award on the grant date, net of forfeitures. We estimate the grant date fair value of our stock option awards, and the resulting stock-based compensation expense, using the Black-Scholes option-pricing model. The fair value of restricted stock units was determined based on the fair value of our common stock. We recognize compensation costs on a straight-line basis over the requisite service period of the award, which is generally the vesting term of five years.

The Black-Scholes option-pricing model requires the use of highly subjective assumptions which determine the fair value of stock-based awards.

The assumptions used in our option-pricing model represent management’s best estimates. These estimates are highly complex, involve a number of variables, uncertainties and assumptions and the application of management’s judgment, so that they are inherently subjective. If factors change and different assumptions are used, our stock-based compensation expense could be materially different in the future.

These assumptions are estimated as follows:

• Fair Value of Common Stock. Given the absence of a public trading market prior to our IPO, the Company’s Board of Directors considered numerous objective and subjective factors to determine the fair value of the Company’s common stock which included, but were not limited to (i) contemporaneous independent third-party valuations of the Company’s common stock; (ii) the rights and preferences of the Company’s preferred stock relative to common stock; (iii) the lack of marketability of common stock; (iv) developments in the business; and (v) the likelihood of achieving a liquidity event, such as an initial public offering or sale of the company, given prevailing market conditions.

Subsequent to our IPO, the fair value of our common stock is determined based on the per share closing price of the JDS on the Mothers market of the Tokyo Stock Exchange on the date of grant.

• Risk-Free Interest Rate. We base the risk-free interest rate used in the Black-Scholes valuation model on the implied yield available on U.S. Treasury zero-coupon issues with an equivalent remaining term of the options for each option group.

• Expected Term. The expected term represents the period that our stock-based awards are expected to be outstanding. The expected term assumptions were determined based on the vesting terms, exercise terms and contractual lives of the options.

• Volatility. We determine the price volatility factor based on the historical volatilities of our peer group as we did not have a sufficient trading history for our common stock. Industry peers consist of several public companies in the technology industry that provide similar services with comparable characteristics including enterprise value, risk profiles and position within the industry. We intend to continue to consistently apply this process using the same or similar public companies until a sufficient

42

amount of historical information regarding the volatility of our own common stock share price becomes available, or unless circumstances change such that the identified companies are no longer similar to us, in which case, more suitable companies whose share prices are publicly available would be utilized in the calculation.

• Dividend Yield. The expected dividend assumption is based on our current expectations about our anticipated dividend policy. We currently do not expect to issue any dividends.

In addition to assumptions used in the Black-Scholes option-pricing model, we must also estimate a forfeiture rate to calculate the stock-based compensation for our awards. Upon the adoption of ASU 2016-09, in the first quarter of fiscal 2017, we adjusted stock-based compensation expense for forfeiture of equity incentive awards as they occur. We will continue to use judgment in evaluating the assumptions related to our stock-based compensation on a prospective basis. As we continue to accumulate additional data, we may have refinements to our estimates, which could materially impact our future stock-based compensation expense.

Recent Accounting Pronouncements

Refer to “Recent Accounting Pronouncements” in Note 1. Organization and Summary of Significant Accounting included in Part II, Item 8 of this Annual Report on Form 10-K

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

We are exposed to market risk from fluctuations in foreign currency exchange rates and interest rates, which may adversely affect our results of operations and financial condition. We seek to minimize these risks through regular operating activities. We do not purchase, hold or sell derivative financial instruments for trading or speculative purposes.

Foreign exchange rates

We transact business globally and are subject to risks associated with fluctuating foreign exchange rates. Substantially all of our revenue was derived from sales outside of the U.S. for the year ended December 31, 2017 and 2016. This revenue is generated in U.S. dollars with sales through distributors worldwide. Our operating expenses are denominated in the currencies of the countries in which our subsidiaries are located, and may be subject to fluctuations due to changes in foreign currency exchange rates. To date, we have not entered into any hedging contracts, but may elect to do so in the future. A hypothetical increase or decrease of 10% in foreign exchange rates for the year ended December 31, 2017, 2016 and 2015 would not have resulted in a significant increase or decrease in revenue or net income during that period.

The U.S. dollar is the functional currency for all of our foreign operations. Monetary assets and liabilities denominated in foreign currencies are remeasured into the functional currency of the subsidiary at the balance sheet date. The gains and losses from remeasurement of foreign currency denominated balances into the functional currency of the subsidiary are included in Other income (expense) on our Consolidated Statement of Operations.

Interest rates

Our exposure to market risk for changes in interest rates relates primarily to our cash and cash equivalents. We seek to minimize the risk to our cash and cash equivalents by investing cash in excess of our operating needs in short-term, high-quality instruments issued by highly creditworthy financial institutions. With the amount of cash and cash equivalents that we maintained at December 31, 2017, a hypothetical increase or decrease of one percentage point, or 100 basis points, in interest rates, would not have had a material effect on our financial statements.

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Item 8. Financial Statements and Supplementary Data

Index to Consolidated Financial Statements

Report of Independent Registered Public Accounting Firm	45
Consolidated Balance Sheets	46
Consolidated Statements of Operations	47
Consolidated Statements of Stockholders’ Equity	48
Consolidated Statements of Cash Flows	49
Notes to Consolidated Financial Statements	50

44

Report of Independent Registered Public Accounting Firm

Shareholders and Board of Directors

Techpoint, Inc.

San Jose, California

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheets of Techpoint, Inc. (the “Company”) as of December 31, 2017 and 2016, the related consolidated statements of operations, stockholders’ equity, and cash flows for each of the three years in the period ended December 31, 2017, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2017 and 2016, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2017, in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s consolidated 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 the 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 audit to obtain reasonable assurance about whether the consolidated 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 consolidated 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 consolidated 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 consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

/s/ BDO USA, LLP

We have served as the Company's auditor since 2015.

San Jose, California

March 14, 2018

45

Techpoint, Inc.

Consolidated Balance Sheets

(in thousands, except share and per share amounts)

	December 31,		December 31,
	2017		2016
Assets
Current assets:
Cash and cash equivalents	$	21,536	$	10,006
Accounts receivable		93		79
Inventory		2,847		2,583
Prepaid expenses and other current assets		978		273
Total current assets		25,454		12,941
Property and equipment - net		325		401
Deferred tax assets		652		1,022
Other assets		161		1,188
Total assets	$	26,592	$	15,552
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable	$	760	$	777
Accrued liabilities		573		481
Liability related to early exercised stock options		152		223
Customer deposits		6		745
Total current liabilities		1,491		2,226
Other liabilities		133		90
Total liabilities		1,624		2,316
Commitments and contingencies (Note 5)
Stockholders’ equity
Convertible preferred stock, no par value per share - 11,660,000 shares authorized
Series seed convertible preferred stock - 4,660,000 shares designated; nil and    4,660,000 shares issued and outstanding (aggregate liquidation value of nil    and $1,165) as of December 31, 2017 and 2016, respectively		—		1,156
Series A convertible preferred stock - 4,500,000 shares designated; nil and    4,500,000 shares issued and outstanding (aggregate liquidation value of nil    and $4,500) as of December 31, 2017 and 2016, respectively		—		4,477
Series B convertible preferred stock - 2,500,000 shares designated; nil and    1,582,500 shares issued and outstanding (aggregate liquidation value of nil    and $3,165) as of December 31, 2017 and 2016, respectively		—		3,161
Preferred stock, par value $0.0001 per share - 5,000,000 and nil shares authorized    as of December 31, 2017 and 2016, respectively; nil shares issued and    outstanding as of December 31, 2017 and 2016		—		—
Common stock, no par value per share - Nil and 20,500,000 shares authorized as    of December 31, 2017 and 2016, respectively; nil and 3,725,238 shares issued    and outstanding as of December 31, 2017 and 2016, respectively		—		—
Common stock, par value $0.0001 per share - 75,000,000 and nil shares authorized    as of December 31, 2017 and 2016, respectively; 16,752,171 and nil shares issued    and outstanding as of December 31, 2017 and 2016, respectively		2		—
Additional paid-in-capital		17,580		813
Retained earnings		7,386		3,629
Total stockholders’ equity		24,968		13,236
Total liabilities and stockholders’ equity	$	26,592	$	15,552

See accompanying notes to consolidated financial statements.

46

Techpoint, Inc.

Consolidated Statements of Operations

(in thousands, except share and per share amounts)

	Year Ended
	December 31,
	2017			2016		2015
Revenue	$	31,142		$	27,156	$	20,245
Cost of revenue		13,221			12,735		8,803
Gross profit		17,921			14,421		11,442
Operating expenses
Research and development		5,383			4,380		4,964
Selling, general and administrative		6,193			4,678		2,592
Total operating expenses		11,576			9,058		7,556
Income from operations		6,345			5,363		3,886
Other income (expense)		(73	)		—		3
Income before income taxes		6,272			5,363		3,889
Income taxes		2,515			1,882		(168	)
Net income	$	3,757		$	3,481	$	4,057
Net income allocable to preferred stockholders	$	1,936		$	2,627	$	3,170
Net income allocable to common stockholders	$	1,821		$	854	$	887
Net income per share allocable to common stockholders:
Basic	$	0.25		$	0.24	$	0.30
Diluted	$	0.24		$	0.23	$	0.28
Weighted-average shares outstanding in computing    net income per share allocable to common stockholders
Basic		7,145,641			3,493,946		3,007,311
Diluted		8,056,329			4,358,387		3,774,146

See accompanying notes to consolidated financial statements.

47

Techpoint, Inc.

Consolidated Statements of Stockholders’ Equity

(in thousands, except share amounts)

	Convertible Preferred Stock						Common Stock
	Shares			Amount			Shares		Amount		Additional Paid-In Capital		Retained Earnings			Total Stockholders' Equity
Balances as of December 31, 2014		10,742,500		$	8,794			2,893,084	$	—	$	91	$	(3,909	)	$	4,976
Issuance of common stock upon exercise of    stock options and vesting of early    exercised options		—			—			439,768		—		43		—			43
Stock-based compensation		—			—			—		—		164		—			164
Net income		—			—			—		—		—		4,057			4,057
Balances as of December 31, 2015		10,742,500			8,794			3,332,852		—		298		148			9,240
Issuance of common stock upon exercise of    stock options and vesting of early    exercised options		—			—			392,386		—		76		—			76
Stock-based compensation		—			—			—		—		439		—			439
Net income		—			—			—		—		—		3,481			3,481
Balances as of December 31, 2016		10,742,500			8,794			3,725,238		—		813		3,629			13,236
Conversion of convertible preferred stock to    common stock upon IPO		(10,742,500	)		(8,794	)		10,742,500		2		8,792		—			—
Issuance of common stock upon IPO, net of    issuance costs		—			—			1,520,000		—		5,157		—			5,157
Issuance of common stock upon exercise of    over-allotment option, net of issuance costs		—			—			228,000		—		1,200		—			1,200
Issuance of common stock upon exercise of    stock options and vesting of early    exercised options		—			—			506,433		—		170		—			170
Issuance of common stock upon vesting of    RSUs		—			—			30,000		—		—		—			—
Stock-based compensation		—			—			—		—		1,448		—			1,448
Net income		—			—			—		—		—		3,757			3,757
Balances as of December 31, 2017		—		$	—			16,752,171	$	2	$	17,580	$	7,386		$	24,968

See accompanying notes to consolidated financial statements

48

Techpoint, Inc.

Consolidated Statements of Cash Flows

(in thousands)

	Year Ended
	December 31,
	2017			2016			2015
Cash Flows From Operating Activities
Net income	$	3,757		$	3,481		$	4,057
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		207			160			94
Stock-based compensation		1,448			439			164
Write-off of long lived assets		9			7			—
Deferred income taxes		370			(193	)		(829	)
Changes in operating assets and liabilities:
Accounts receivable		(14	)		(77	)		(2	)
Inventory		(264	)		(1,202	)		(286	)
Prepaid expenses and other current assets		(705	)		193			(322	)
Other assets		(18	)		(23	)		(151	)
Accounts payable		85			(791	)		1,134
Accrued expenses		180			200			52
Customer deposits		(739	)		(614	)		1,323
Other liabilities		43			28			53
Net cash provided by operating activities		4,359			1,608			5,287
Cash Flows From Investing Activities
Purchase of property and equipment		(170	)		(346	)		(88	)
Net cash used in investing activities		(170	)		(346	)		(88	)
Cash Flows From Financing Activities
Proceeds from initial public offering, net of underwriter commissions		9,339			—			—
Net proceeds from exercise of stock options		98			113			184
Payments of deferred offering costs		(2,096	)		(832	)		—
Net cash provided by (used in) financing activities		7,341			(719	)		184
Net increase in cash and cash equivalents		11,530			543			5,383
Cash and cash equivalents at beginning of period		10,006			9,463			4,080
Cash and cash equivalents at end of period	$	21,536		$	10,006		$	9,463
Supplemental Disclosure of Cash Flow Information
Cash paid for income taxes	$	2,585		$	1,819		$	821
Supplemental Disclosure of Noncash Investing and Financing    Information
Conversion of preferred stock to common stock upon initial public offering	$	8,792		$	—		$	—
Vesting of early exercised options	$	99		$	76		$	16
Property and equipment purchased but not yet paid	$	21		$	51		$	—
Unpaid deferred offering costs	$	—		$	161		$	53

See accompanying notes to consolidated financial statements.

49

Techpoint, Inc.

Notes to Consolidated Financial Statements

1. Organization and Summary of Significant Accounting Policies

Organization

Techpoint, Inc. and its wholly-owned subsidiaries (the “Company”) was originally incorporated in California in April 2012 and reincorporated into Delaware in July 2017. The Company is a fabless semiconductor company that designs, markets and sells mixed-signal integrated circuits for multiple video applications in the security surveillance and automotive markets. The Company is headquartered in San Jose, California.

Initial Public Offering

On September 29, 2017, the Company completed its initial public offering (“IPO”) of Japanese depositary shares (“JDS”). In connection with the IPO, the Company sold 1,520,000 JDSs, represented by 1,520,000 shares of our common stock at a price to the public of $5.85 per share and received net proceeds of $8.1 million, after deducting underwriting discounts and commissions of $0.7 million. Additionally, offering costs incurred by the Company totaled $3.0 million. Prior to the closing of the Company’s IPO, all outstanding shares of its preferred stock converted to common stock on a one-to-one basis.

On October 25, 2017, the managing underwriter of our IPO elected to purchase an additional 228,000 shares of JDSs, represented by 228,000 shares of common stock, pursuant to the underwriters’ over-allotment option. We subsequently completed the sale at the IPO price of $5.85 per share and received net proceeds of $1.2 million, after deducting underwriting discounts and commissions of $0.1 million.

Basis of Consolidation and Significant Accounting Policies

The accompanying consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, and have been prepared in conformity with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”). All intercompany balances and transactions have been eliminated. The functional currency of each of the Company’s subsidiaries is the U.S. dollar. Foreign currency gains or losses are recorded as other income (expense) in the Consolidated Statements of Operations.

Use of Management’s Estimates

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates, judgments and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts ofrevenue and expenses during the reporting period. Significant estimates included in the consolidated financial statements include inventory valuation, valuation allowance for recorded deferred tax assets, and stock-based compensation. These estimates are based upon information available as of the date of the consolidated financial statements. Actual results could differ materially from those estimates.

Concentration of Customer and Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of cash and cash equivalents and trade receivables. Risks associated with cash and cash equivalents are mitigated by banking with creditworthy institutions. The Company generally requires advance payments from customers. The Company also performs credit evaluations of its customers and provides credit to certain customers in the normal course of business. The Company has not incurred bad debt write-offs during any of the periods presented.

For the year ended December 31, 2017, 2016 and 2015, one customer, a distributor, accounted for 74%, 85% and 82% of revenue, respectively. Additionally, for the year ended December 31, 2017, 2016 and 2015, one of our end-customers accounted for 59%, 62% and 78% of revenue, respectively, which primarily occurred through this distributor. No other customers accounted for 10% or greater of our revenue in the year ended December 31, 2017,

50

2016 or 2015. Additionally, no other end-customer accounted for 10% or greater of our revenue for the year ended December 31, 2017. One other end-customer accounted for 10% or greater of our revenue for the year ended December 31, 2016. No other end-customer accounted for 10% or greater of our revenue for the year ended December 31, 2015.

Concentration of Supplier Risk

The Company is a fabless producer of semiconductors and is dependent on three subcontractors for substantially all of its production requirements. The failure of either subcontractor to fulfill the production requirements of the Company on a timely basis would adversely impact future results. Although there are other subcontractors that are capable of providing similar services, an unexpected change in either subcontractor would cause delays in the Company’s products and potentially result in a significant loss of revenue.

Cash and Cash Equivalents

The Company considers all highly liquid financial instruments purchased with an original maturity of three months or less at the date of purchase to be cash equivalents. Cash and cash equivalents consist of cash on deposit with banks and money market funds, the fair value of which approximates cost.

Fair Value of Financial Instruments

The Company estimates certain financial assets and liabilities at fair value based on available market information and valuation methodologies considered to be appropriate. However, considerable judgment is required in interpreting market data to develop the estimate of fair value. The use of different market assumptions and/or estimation methodologies could have a material effect on estimated fair value amounts. See Note 3: “Fair Value Measurements” of these Notes to Consolidated Financial Statements for a further discussion on fair value of financial instruments.

Inventories

Inventories are stated at the lower of cost or market. Upon the adoption of ASU 2015-11 in the first quarter of fiscal 2017, inventories are stated at the lower of cost or net realizable value. Cost is computed using the standard cost, which approximates actual cost determined on a first-in, first-out basis. Inventories include work in process and finished good parts that may be specialized in nature and subject to rapid obsolescence. Because of the cyclical nature of the market, inventory levels, obsolescence of technology, and product life cycles, the Company generally writes down inventories to net realizable value based on forecasted product demand. Inventory write downs for excess quantity and technological obsolescence are charged to cost of sales when evidence indicates clearly that a loss has been sustained. The amount written down for the years ended December 31, 2017 and 2016 was $0.4 million and $0.8 million, respectively.

Property and Equipment

Property and equipment, are stated at cost less accumulated depreciation, and are depreciated using the straight-line method over the estimated useful lives of the assets. The estimated useful lives range from two to three years for computer equipment, furniture and leasehold improvements.

The Company evaluates the recoverability of property, plant and equipment in accordance with Accounting Standards Codification (“ASC”) No. 360, Accounting for the Property, Plant, and Equipment. (“ASC 360”). The Company performs periodic reviews to determine whether facts and circumstances exist that would indicate that the carrying amounts of property and equipment exceeds their fair values. If facts and circumstances indicate that the carrying amount of property and equipment might not be fully recoverable, projected undiscounted net cash flows associated with the related asset or group of assets over their estimated remaining useful lives are compared against their respective carrying amounts. In the event that the projected undiscounted cash flows are not sufficient to recover the carrying value of the assets, the assets are written down to their estimated fair values based on their expected discounted future cash flows attributable to those assets.

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Product Warranty

The Company generally warrants its products for one year from the date of shipment against defects. The Company accrues for anticipated warranty costs upon shipment based on the number of shipped units, historical analysis of the volume of product returned under the warranty program, management’s judgment regarding anticipated rates of warranty claims and associated repair costs.

Employee Benefit Plan

The Company sponsors a 401(k) tax-deferred savings plan for all employees in the United States who meet certain eligibility requirements. Participants may contribute up to the amount allowable as a deduction for federal income tax purposes.The 401(k) Plan provides for a discretionary employer-matching contribution. The Company has not made any matching contributions to the 401(k) Plan to date.

Revenue Recognition

Revenue from the sale of the Company’s products is recognized when all of the following criteria are met: (1) persuasive evidence of an arrangement exists; (2) the product has been delivered; (3) the price is fixed or determinable; and (4) collection is reasonably assured.

The Company principally sells its products to distributors who, in turn, sell to ODMs, contract manufacturers and design houses. The Company generally recognizes revenue when it ships its product to the distributors. The Company’s delivery terms are primarily free on board shipping point, at which time title and all risks of ownership are transferred to the distributor. As of December 31, 2017 and 2016, substantially all of the Company’s customers paid in advance of shipment, and no stock rotation, price protection or return rights were offered.

Research and Development Costs

Research and development costs are expensed as incurred. Such costs consist primarily of expenditures for labor, benefits and mask sets.

Stock-Based Compensation

The Company measures the cost of employee services received in exchange for equity incentive awards, including stock options, based on the grant date fair value of the award. The fair value is estimated using the Black-Scholes option pricing model which requires us to estimate certain key assumptions including, stock price, future stock price volatility, expected term of the options, risk free rates, and dividend yields. The Company adjusts compensation expense for forfeiture of equity incentive awards as they occur. The resulting cost is recognized over the period that the employee is required to provide services for the award, which is usually the vesting period. The Company recognizes compensation expense over the vesting period using the straight-line method and classifies these amounts based on the department to which the related employee is assigned. See Note 11 “Stock-Based Compensation” for a description of the Company’s stock-based employee compensation plans and the assumptions the Company uses to calculate the fair value of stock-based employee compensation.

Stock-based awards issued to non-employees are recognized as expense over the requisite service period at their then current fair value. The Company determines the fair value of its stock-based awards issued to non-employees utilizing the Black-Scholes option pricing model. Stock-based compensation expense for stock-based awards issued to nonemployees is recognized over the requisite service period or when it is probable that the performance condition will be satisfied. The fair value of stock-based awards to non-employees is measured at each reporting period until a measurement date is reached.

Income Taxes

The Company accounts for income taxes using an asset and liability approach as prescribed in ASC 740-10, Income Taxes (“ASC 740-10”). The Company records the amount of taxes payable or refundable for the current and prior years and deferred tax assets and liabilities for the future tax consequences of events that have been recognized

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in the Company’s financial statements or tax returns. A valuation allowance is recorded to reduce deferred tax assets when it is more likely than not that a tax benefit will not be realized.

ASC 740-10 prescribes a recognition threshold and measurement framework for the financial statement reporting and disclosure of an income tax position taken or expected to be taken on a tax return. Under ASC 740-10, a tax position is recognized in the financial statements when it is more likely than not, based on the technical merits, that the position will be sustained upon examination, including resolution of any related appeals or litigation processes. A tax position that meets the recognition threshold is then measured to determine the largest amount of the benefit that has a greater than 50% likelihood of being realized upon settlement. The Company recognizes interest and penalties related to unrecognized tax benefits as a component of the provision for income taxes in the Consolidated Statements of Income.

The calculation of tax liabilities involves significant judgment in estimating the impact of uncertainties in the application of complex tax laws across multiple tax jurisdictions. Although ASC 740-10 providesclarification on the accounting for uncertainty in income taxes recognized in the financial statements, the recognition threshold and measurement framework will continue to require significant judgment by management. Resolution of these uncertainties in a manner inconsistent with the Company’s expectations could have a material impact on the Company’s results of operations.

Recently Adopted Accounting Pronouncements

Stock Compensation Guidance. In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-09 (ASC Topic 718), Stock Compensation — Improvements to Employee Share-Based Payment Accounting, which simplifies the accounting for share based payment transactions, including the income tax consequences, forfeitures, and statutory tax withholding requirements, as well as classification on the statement of cash flows. ASU 2016-09 is effective for the Company beginning the first quarter of fiscal 2017. The Company adopted the guidance in the first quarter of fiscal 2017, which resulted in no material impacts on its financial position, results of operations, or cash flows, and expects the primary impact of this standard to be the income tax effects of awards recognized in the income statement when the awards are vested or settled. The potential tax impacts remain unknown until the award vest or settlement date.

Inventory Measurement Guidance. In July 2015, the FASB issued ASU 2015-11, Simplifying the Measurement of Inventory, amending ASC 330. Upon adoption, this topic supersedes the existing guidance under ASC 330 and aims to simplify the subsequent measurement of inventory. Currently, inventory can be measured at the lower of cost or market, which could result in several potential outcomes, as market could be replacement cost, net realizable value or net realizable value less an approximately normal profit margin. The major amendments would be as follows: 1. Inventory should be measured at the lower of cost or net realizable value. 2. Net realizable value is the estimated selling price in the ordinary course of business less reasonably predictable costs of completion, disposal and transportation. 3. The amendment does not apply to inventory measured under LIFO or the retail inventory method. 4. The amendment does apply to all other inventory, which includes inventory measured via FIFO or average cost. ASU 2015-11 became effective for periods beginning after December 15, 2016 (including interim reporting periods within those fiscal years), or the first quarter of fiscal 2017. The Company adopted this guidance in the first quarter of fiscal 2017, which resulted in no material impact on its consolidated financial statements.

Recently Issued Accounting Pronouncements Not Yet Adopted

Lease Guidance. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) (“ASU 2016-02”). ASU 2016-02 requires lessees to recognize all leases with terms in excess of one year on their balance sheet as a right-of-use asset and a lease liability at the commencement date. The new standard also simplifies the accounting for sale and leaseback transactions. The amendments in this update are effective for annual periods beginning after December 15, 2018, and interim periods therein and must be adopted using a modified retrospective method for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. Early adoption is permitted. The Company does not expect that the adoption of this amendment will have a material impact on its consolidated financial statements.

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Revenue Recognition Guidance. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, creating ASC Topic 606. Upon adoption, this topic supersedes the existing guidance under ASC 605 and aims to simplify the number of requirements to follow for revenue recognition and make revenue recognition more comparable across various entities, industries, jurisdictions and capital markets. There are 5 core principles: 1. Identify the contract(s) with a customer. 2. Identify the performance obligations in the contract. 3. Determine the transaction price. 4. Allocate the transaction price to performance obligations in the contract. 5. Recognize revenue when (or as) the entity satisfies a performance obligation. Additional considerations under this update include: accounting for costs to obtain or fulfill a contract with a customer and additional quantitative and qualitative disclosures. ASU 2014-09 will become effective for periods beginning after December 15, 2017 (including interim reporting periods within those periods), or the first quarter 2018, and allows for retrospective or modified retrospective application.

The Company has substantially completed its evaluation of the effect of the standard on the Company’s financial statements. The Company’s evaluation focused on the review of significant customer contracts as well as business processes, systems and controls required to support appropriate recognition and disclosure under the new standard. Based on the Company’s evaluation and as the Company does not offer stock rotation, price protection or return rights for its product sales, the Company has not identified any expected material impact on the timing and measurement of revenues from the review of its existing customer contracts. The Company will evaluate new contracts with customers as they are obtained and will adopt the standard using the modified retrospective approach in the first quarter of 2018.

2. Balance Sheet Components

Inventory

Inventory consists of the following (in thousands):

	December 31,		December 31,
	2017		2016
Finished goods	$	1,633	$	1,741
Work in process		1,214		842
Total inventory	$	2,847	$	2,583

Property and Equipment - Net

Property and equipment - net consists of the following (in thousands):

	December 31,			December 31,
	2017			2016
Computer equipment	$	687		$	605
Leasehold improvements		59			22
Furniture		30			37
Total property and equipment		776			664
Less: accumulated depreciation		(451	)		(263	)
Total property and equipment - net	$	325		$	401

The Company recorded $0.2 million and $0.2 million of depreciation expense for the year ended December 31, 2017 and 2016, respectively.

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Accrued Liabilities

Accured liabilities consist of the following (in thousands):

	December 31,		December 31,
	2017		2016
Payroll-related expenses	$	291	$	144
Engineering services		131		110
Accrued warranty		73		83
Taxes payable		37		27
Professional fees		23		95
Other		18		22
Total accrued liabilities	$	573	$	481

Customer Deposits

Customer deposits represent payments received in advance of shipments. Customer deposits were $6,000 and $0.7 million as of December 31, 2017 and 2016, respectively.

3. Fair Value Measurements

Fair value is defined as the exchange price that would be received from selling an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The Company measures financial assets and liabilities at fair value at each reporting period using a fair value hierarchy which requires us to maximize the use of observable inputs and minimize the use of unobservable inputs. A financial instrument’s classification within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Three levels of inputs may be used to measure fair value:

Level 1. Quoted prices in active markets for identical assets or liabilities.

Level 2. Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.

Level 3. Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities, including pricing models, discounted cash flow methodologies and similar techniques.

Financial assets measured at fair value on a recurring basis were as follows:

	Fair Value Measurement at Reporting Date Using
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
As of December 31, 2017
Assets:
Money market funds	$	6,951	$	—	$	—	$	6,951
As of December 31, 2016
Assets:
Money market funds	$	4,932	$	—	$	—	$	4,932

As of December 31, 2017 and 2016, money market funds are classified as Level 1 because they are valued using quoted market prices and are included in cash and cash equivalents.

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4. Segment Information

Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or group, in deciding how to allocate resources and in assessing performance.

The Company’s chief operating decision maker, the chief executive officer, reviews financial information presented on a consolidated basis for purposes of regularly making operating decisions and assessing financial performance. Accordingly, the Company considers itself to be in one reportable segment, which is comprised of one operating segment, the designing, marketing and selling of mixed-signal integrated circuits for the security surveillance and automotive markets.

Product revenue from customers is designated based on the geographic region to which the product is delivered. Revenue by geographic region was as follows (in thousands):

	Year Ended
	December 31,
	2017		2016		2015
China	$	26,453	$	23,815	$	17,637
South Korea		2,857		1,600		1,470
Taiwan		821		1,214		1,128
Other		1,011		527		10
Total revenue	$	31,142	$	27,156	$	20,245

Revenue by principal product lines were as follows (in thousands):

	Year Ended
	December 31,
	2017		2016		2015
Security surveillance	$	28,143	$	26,531	$	20,237
Automotive		2,999		625		8
Total revenue	$	31,142	$	27,156	$	20,245

Long-lived assets are attributed to the geographic region where they are located. Net long-lived assets by geographic region were as follows (in thousands):

	December 31,		December 31,
	2017		2016
Taiwan	$	205	$	255
United States		92		83
Japan		16		39
China		9		19
South Korea		3		5
Total property and equipment - net	$	325	$	401

5. Commitments and Contingencies

Operating leases

The Company leases facilities under non-cancellable lease agreements expiring through fiscal year 2020.

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As of December 31, 2017, the aggregate future minimum lease payments under operating leases consist of the following (in thousands):

Year Ending December 31,	Amount
2018	$	469
2019		520
2020		60
Total	$	1,049

Rent expense under operating leases was $0.5 million and $0.4 million for the year ended December 31, 2017 and 2016, respectively.

Purchase Commitments

As of December 31, 2017, the Company had purchase commitments with its third-party suppliers through fiscal year 2018. Future minimum payments under purchase commitments are $0.1 million for the year ending December 31, 2018.

Litigation

Although the Company is not currently subject to any litigation, and no litigation is currently threatened against it, the Company may be subject to legal proceedings, claims and litigation, including intellectual property litigation, arising in the ordinary course of business. Such matters are subject to many uncertainties and outcomes and are not predictable with assurance. The Company accrues amounts that it believes are adequate to address any liabilities related to legal proceedings and other loss contingencies that the Company believes will result in a probable loss that is reasonably estimable.

Indemnification

During the normal course of business, the Company may make certain indemnities, commitments and guarantees which may include intellectual property indemnities to certain of the Company’s customers in connection with the sales of the Company’s products and indemnities for liabilities associated with the infringement of other parties’ technology based upon the Company’s products. The Company’s exposure under these indemnification provisions is generally limited to the total amount paid by a customer under the agreement. However, certain agreements include indemnification provisions that could potentially expose us to losses in excess of the amount received under the agreement. In addition, the Company indemnifies its officers, directors and certain key employees while they are serving in good faith in such capacities.

The Company has not recorded any liability for these indemnities, commitments and guarantees in the accompanying consolidated balance sheets. Where necessary, the Company accrues for losses for any known contingent liabilities, including those that may arise from indemnification provisions, when future payment is probable.

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6. Stockholders’ Equity

Convertible Preferred Stock

The Company had authorized and issued Series Seed Preferred Stock (“Series Seed”), Series A preferred stock (“Series A”), and Series B preferred stock (“Series B”). Preferred stock outstanding as of December 31, 2016 consisted of the following (in thousands, except share and per share data):

	December 31, 2016
Series	Period Issued	Price per Share		Shares Authorized		Shares Issued and Outstanding		Aggregate Liquidation Value		Carrying Value
Seed	July 2012	$	0.25		4,660,000		4,660,000	$	1,165	$	1,156
A	November 2012 to June 2013	$	1.00		4,500,000		4,500,000		4,500		4,477
B	June 2014 to October 2014	$	2.00		2,500,000		1,582,500		3,165		3,161
Total					11,660,000		10,742,500	$	8,830	$	8,794

Prior to the closing of the Company’s IPO, all shares of the then-outstanding convertible preferred stock, as shown in the table above, converted on a one-for-one basis into common stock.

Preferred Stock

The Company was authorized to issue 5,000,000 shares of preferred stock with a $0.0001 par value per share as of December 31, 2017. The shares of preferred stock issued and outstanding was nil as of December 31, 2017.

Common Stock

The Company was authorized to issue 75,000,000 shares of common stock with $0.0001 par value per share as of December 31, 2017. The shares of common stock issued and outstanding was 16,752,171excluding 289,334 legally issued shares subject to repurchase related to the early exercise of options to purchase common stock as of December 31, 2017.

The Company has reserved the following number of shares of common stock for future issuances:

	December 31,
	2017
Outstanding stock awards		1,593,568
Shares available for future issuance under the 2017    Stock Incentive Plan		3,933,649
Total common stock reserved for future issuances		5,527,217

7. Stock Award Plan

Stock Incentive Plan

In April 2012, the Company adopted the 2012 Stock Option Plan (“2012 Plan”). The 2012 Plan provides for the granting of stock-based awards to employees, directors, and consultants under terms and provisions established by the Company’s board of directors. Under the terms of the 2012 Plan, options may be granted at an exercise price not less than fair market value. For employees holding more than 10% of the voting rights of all classes of stock, the exercise prices for incentive and nonstatutory stock options must be at least 110% of the fair market value of the common stock on the grant date, as determined by the Company’s board of directors. The terms of options granted under the 2012 Plan may not exceed ten years.

In August 2017, the Company adopted the 2017 Stock Option Plan (“2017 Plan”). The Company’s stockholders approved the 2017 Plan in September 2017 and it became effective immediately prior to the closing of the Company’s IPO. In connection with the adoption of the 2017 Plan, no additional awards and no shares of common stock remain available for future issuance under the 2012 Plan and shares reserved but not issued under the

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2012 Plan as of the effective date of the 2017 Plan were included in the number of shares reserved for issuance under the 2017 Plan. The Company has reserved 3,933,649 shares of its common stock for issuance under the 2017 Plan, including 1,453,649 shares reserved but not issued under the 2012 Plan as of the effective date of the 2017 Plan. In addition, shares subject to awards under the 2012 Plan that are forfeited or terminated will be added to the 2017 Plan. The number of shares that have been authorized for issuance under the 2017 Plan will be automatically increased on the first day of each fiscal year beginning on January 1, 2018 and ending on (and including) January 1, 2027, in an amount equal to the lesser of (1) 4% of the outstanding shares of our common stock on the last day of the immediately preceding fiscal year, or (2) another amount determined by the Company’s board of directors. The 2017 Plan provides for the granting of incentive stock options, or ISOs, within the meaning of Section 422 of the Code to employees and the granting of nonstatutory stock options, or NSOs, to employees, non-employee directors, advisors and consultants. The 2017 Plan also provides for the grants of restricted stock, stock appreciation rights, or SARs, stock unit and cash-based awards to employees, non-employee directors, advisors and consultants.

The Company has various vesting agreements with employees. Options granted generally vest over a five-year period and generally are exercisable up to 10 years.

Early Exercise of Stock Options

Certain employees and directors have exercised option grants prior to vesting. The unvested shares are subject to a repurchase right held by the Company at the original purchase price. The proceeds initially are recorded as liability related to early exercised stock options and reclassified to additional paid in capital as the repurchase right lapses. The Company issued 46,667 and 302,083 unvested shares of common stock upon early exercise for the year ended December 31, 2017 and 2016, respectively, for total exercise proceeds of $46,000 and $113,000, respectively. For the year ended December 31, 2017 and 2016, the Company repurchased 45,666 and 37,167 shares, respectively, of unvested common stock related to early exercised stock options at the original purchase price due to termination of employees. As of December 31, 2017 and 2016, 289,334 and 606,833 shares, respectively, held by employees and nonemployees were subject to repurchase at an aggregate price of $0.2 million and $0.2 million, respectively.

Stock Options

The Company’s stock option activity is summarized as follows:

	Options Available for Grant			Options Issued and Outstanding			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value (in thousands)
As of December 31, 2016		2,017,983			1,545,667		$	0.81		8.2	$	3,216
Authorized		2,500,000			—
Granted		(583,500	)		583,500		$	2.99
Exercised (1)		—			(506,433	)	$	0.34
Canceled		49,166			(49,166	)	$	0.41
As of December 31, 2017		3,983,649			1,573,568		$	1.78		8.4	$	24,556
Options vested and expected to vest as of    December 31, 2017					1,573,568		$	1.78		8.4	$	24,556
Options vested and exercisable as of    December 31, 2017					357,920		$	1.42		7.9	$	5,714

(1) Includes vesting of early-exercised options.

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The stock options outstanding and exercisable by exercise price at December 31, 2017, are as follows:

		Options Outstanding						Options Vested and Exercisable
Exercise Price		Number Outstanding		Weighted- Average Remaining Contractual Life (Years)		Weighted- Average Exercise Price		Number Vested and Exercisable		Weighted- Average Exercise Price
$	0.10		14,167		5.6	$	0.10		—	$	—
$	0.16		128,750		6.1	$	0.16		72,333	$	0.16
$	0.37		317,584		7.4	$	0.37		64,500	$	0.37
$	0.97		263,833		8.2	$	0.97		68,828	$	0.97
$	2.51		269,401		8.7	$	2.51		95,626	$	2.51
$	2.89		52,000		9.2	$	2.89		—	$	—
$	2.93		372,833		9.4	$	2.93		49,133	$	2.93
$	3.18		155,000		9.6	$	3.18		7,500	$	3.18
			1,573,568		8.4	$	1.78		357,920	$	1.42

The aggregate intrinsic value of options exercised for the year ended December 31, 2017 and 2016 was $1.8 million and $0.8 million, respectively.

Restricted Stock Units

The Company’s restricted stock unit activity is summarized as follows:

	Number of Shares			Weighted-Average Grant Date Fair Value
As of December 31, 2016		30,000		$	2.89
Granted		20,000		$	19.42
Released		(30,000	)	$	2.89
Canceled		—
As of December 31, 2017		20,000		$	19.42

Restricted stock units are converted into shares of the Company’s common stock upon vesting on a one-for-one basis. Restricted stock unit awards generally vest over a five-year period and are subject to the grantee’s continued service with the Company.

8. Stock-Based Compensation

The following table summarizes the distribution of stock-based compensation expense (in thousands):

	Year Ended
	December 31,
	2017		2016		2015
Cost of revenue	$	31	$	15	$	7
Research and development		273		102		73
Selling, general and administrative		1,144		322		84
Total	$	1,448	$	439	$	164

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The Company records stock-based compensation using the Black-Scholes option-pricing model. The Company recognizes such costs as compensation expense on a straight-line basis over the requisite service period. The Company’s valuation assumptions are as follows:

Fair value of common stock — Given the absence of a public trading market prior to our IPO, the Company’s Board of Directors considered numerous objective and subjective factors to determine the fair value of the Company’s common stock which included, but were not limited to (i) contemporaneous independent third-party valuations of the Company’s common stock; (ii) the rights and preferences of the Company’s preferred stock relative to common stock; (iii) the lack of marketability of common stock; (iv) developments in the business; and (v) the likelihood of achieving a liquidity event, such as an initial public offering or sale of the company, given prevailing market conditions.

Subsequent to our IPO, the fair value of the Company’s common stock was the per share closing price for our JDS as reported on the Mothers market of the Tokyo Stock Exchange on the date of grant.

Risk-free interest rate — The Company bases the risk-free interest rate used in the Black-Scholes option-pricing model on the implied yield available on U.S. Treasury zero-coupon issues with an equivalent expected term of the awards for each award group.

Expected term — The expected term represents the period that the Company’s stock-based awards are expected to be outstanding. To determine the expected term, we generally apply the simplified approach in which the expected term of an award is presumed to be the mid-point between the vesting date and the expiration date of the award as we do not have sufficient historical exercise data to provide a reasonable basis for an estimate of expected term.

Volatility — As the Company does not have a long trading history to determine the volatility of its common stock, the Company determines volatility based on the historical stock volatilities of a group of publicly listed guideline companies over a period equal to the expected terms of the awards.

Dividend yield — The Company has never declared or paid any cash dividends and does not currently plan to pay a cash dividend in the foreseeable future. Consequently, the Company used an expected dividend yield of zero.

Employee Stock Awards

The following table summarizes the weighted-average assumptions used in the Black-Scholes option-pricing model to determine fair value of stock awards:

	Year Ended
	December 31,
	2017			2016			2015
Expected term (in years)		6.28			6.19			6.30
Risk-free interest rate		2.01	%		1.38	%		1.67	%
Expected volatility		53	%		51	%		46	%
Dividend rate		0	%		0	%		0	%
Fair value of common stock	$	5.14		$	2.35		$	0.86

The weighted-average grant date fair value for employee stock awards for the year ended December 31, 2017, 2016 and 2015 was $3.71, $1.36 and $0.53, respectively. The remaining unrecognized stock-based compensation expense related to non-vested awards was $2.3 million and $0.8 million as of December 31, 2017 and 2016, respectively, and will be recognized over a weighted-average remaining period of approximately 3.7 and 3.7 years, respectively.

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Non-Employee Stock Awards

The following table summarizes the weighted-average assumptions used in the Black-Scholes option-pricing model to determine fair value of stock awards:

	Year Ended
	December 31,
	2017			2016			2015
Expected term (in years)		10.00			10.00			10.00
Risk-free interest rate		2.30	%		2.02	%		2.09	%
Expected volatility		53	%		53	%		50	%
Dividend rate		0	%		0	%		0	%
Fair value of common stock	$	14.40		$	2.68		$	0.84

The weighted-average grant date fair value for non-employee stock awards for the year ended December 31, 2017, 2016 and 2015 was $7.34, $2.16 and $0.53, respectively. Non-employee stock awards are revalued at each reporting date and the relating stock-based compensation expense is recognized as awards vest. Non-employee stock-based compensation expense for unvested awards fluctuate as the fair value of our JDS, represented by common stock, fluctuates. The remaining unrecognized stock-based compensation expense related to non-vested awards was $0.3 million and $0.2 million as of December 31, 2017 and 2016, respectively, and will be recognized over a weighted-average remaining period of approximately 1.9 and 4.0 years, respectively.

9. Net Income Per Share

For the periods presented prior to the Company’s IPO, basic and diluted net income per common share are presented in conformity with the two-class method required for participating securities. Prior to the closing of the Company’s IPO, all outstanding shares of its Series Seed, Series A, and Series B convertible preferred shares, which were participating securities, were converted to common stock on a one-to-one basis. The common stock issued for the conversion of 10,742,500 preferred shares were included in the calculation of the weighted-average shares outstanding for the year ended December 31, 2017.  

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The following table presents the calculation of basic and diluted net income per share (amounts in thousands, except per share data):

	Year Ended
	December 31,
	2017		2016		2015
Numerator:
Basic:
Net income	$	3,757	$	3,481	$	4,057
Net income allocable to preferred    stockholders		1,936		2,627		3,170
Net income allocable to common stockholders		1,821		854		887
Diluted:
Net income		3,757		3,481		4,057
Net income allocable to preferred    stockholders		1,823		2,477		3,002
Net income allocable to common    stockholders		1,934		1,004		1,055
Denominator:
Basic shares:
Weighted-average shares outstanding in    computing basic net income per share    allocable to common stockholders		7,145,641		3,493,946		3,007,311
Diluted shares:
Effect of potentially dilutive securities:
Stock options (1)		910,688		864,441		766,835
Weighted-average shares used in computing    diluted net income per common share    allocable to common stockholders		8,056,329		4,358,387		3,774,146
Net income per common share:
Basic	$	0.25	$	0.24	$	0.30
Diluted	$	0.24	$	0.23	$	0.28

(1) Including early-exercised options.

The potentially dilutive securities outstanding related to stock options as of December 31, 2017, 2016 and 2015 that were excluded from the computation of diluted net income per common share for the periods presented as their effect would have been antidilutive was 7,000, 56,000 and 39,000 shares, respectively.

10. Income Taxes

The components of income before income taxes are as follows (in thousands):

	Year Ended
	December 31,
	2017		2016		2015
Domestic	$	6,141	$	5,311	$	3,888
Foreign		131		52		1
Income before income taxes	$	6,272	$	5,363	$	3,889

63

The components of the provision for income taxes are as follows (in thousands):

	Year Ended
	December 31,
	2017		2016			2015
Current:
Federal	$	2,089	$	2,034		$	659
Foreign		55		40			1
State		1		1			1
Total Current		2,145		2,075			661
Deferred - net		370		(193	)		(829	)
Provision for income taxes	$	2,515	$	1,882		$	(168	)

The effective tax rate differs from the applicable U.S. statutory federal income tax rate as follows:

	Year Ended
	December 31,
	2017			2016			2015
U.S. statutory federal taxes at statutory rate		34.00	%		34.00	%		34.00	%
State taxes - net of federal benefit		0.01			0.01			0.01
Research and development benefit		(1.72	)		(2.59	)		(4.08	)
Permanent items and other		0.94			2.55			0.55
Change in valuation allowance		1.78			1.12			(34.80	)
Tax rate change		5.06			—			—
Effective tax rate		40.07	%		35.09	%	(4.32)%

The components of net deferred tax assets and liabilities are as follows:

	Year Ended
	December 31,
	2017			2016			2015
Deferred tax assets:
Net operating loss carryforwards	$	85		$	71		$	71
Research and other credits		309			211			151
Accruals		243			464			192
Intangibles		323			574			623
Other		140			97			50
Total deferred tax assets		1,100			1,417			1,087
Deferred tax liabilities:
Property and equipment - net		(54	)		(113	)		(36	)
Total deferred tax liabilities		(54	)		(113	)		(36	)
Valuation allowance		(394	)		(282	)		(222	)
Deferred tax assets - net	$	652		$	1,022		$	829

In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of its deferred tax assets will be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during periods in which temporary differences become deductible or includable in taxable income. Management considers projected future taxable income and tax planning strategies in making this assessment. Based on the level of currentperiod taxable income and its expected recurring profitability, Management believes it is more likely than not the Company will realize benefits of deductible differences andthus has not recorded a full valuation allowance.

Tax reform H.R.1, originally known as the Tax Cuts and Jobs Act (“Act”), was enacted on December 22, 2017. The Act contains several key provisions that may have significant financial statement effects including the remeasurement of deferred taxes and the recognition of liabilities for taxes on mandatory repatriation and certain

64

other foreign income. The Act reduces the corporate tax rate to 21%, effective January 1, 2018. ASC 740 requires companies to recognize the effect of tax law changes in the period of enactment, the effects must be recognized by companies’ December 2017 financial statements, even though the effective date for most provisions is January 1, 2018. 

Subsequent to the enactment of the Act, the Securities and Exchange Commission issued Staff Accounting Bulletin No. 118 ("SAB 118"). SAB 118 addresses the application of ASC 740 in situations when a registrant does not have the necessary information available, prepared, or analyzed in reasonable detail to complete the accounting for certain income tax effects of the Act and permits the recording of provisional amounts relating to the impact of the Act during a measurement period which is not to extend beyond one year from the Act enactment date.

The Company has reflected the impact of the Act in its financial statements as the law was enacted before the end of the 2017 year. The Company estimated that the reduction in the Corporate tax rate to 21% reduced net deferred tax assets by $0.3 million from $1.0 million to $0.7 million.The Company has estimated the liabilities for taxes on mandatory repatriation and certain other foreign income. The liabilities for taxes on mandatory repatriation of foreign income and taxes on other foreign income from its foreign subsidiaries is approximately $35,000 of which $34,000 can be offset with a foreign tax credit.

As of December 31, 2017 and 2016, the Company had net operating loss carryforwards of $1.2 million and $1.2 million, respectively, for state income tax purposes. These net operating loss carryforwards will begin to expire in 2032 if unused. As of December 31, 2017 and 2016, the Company also had credit carryforwards of $0.5 million and $0.4 million, respectively, for state income tax purposes. These credits carryforwards have no expiration if unused. As of December 31, 2017 and 2016, the Company did not have net operating loss carryforwards or other credits for federal income tax purposes. Current tax laws impose substantial restrictions on the utilization of net operating losses and credit carryforwards in the event of an "ownership change", as defined by the Internal Revenue Code (IRC). If there should be anownership change, the Company's ability to utilize its carryforwards could be limited.  

As of December 31, 2017 and 2016, the Company had unrecognized tax benefits of $0.2 million and $0.2 million, respectively, due to research and development credits. The reversal of the uncertain tax benefits would impact the Company’s effective tax rate.

11. Selected Quarterly Financial Data (Unaudited)

The following table summarizes the Company’s unaudited consolidated statements of operations by quarter for the year ended December 31, 2017 and 2016. In the opinion of management, the accompanying unaudited consolidated statements of operations reflect all adjustments, which only include normal recurring adjustments, necessary to present fairly the Company’s results of operations in accordance with GAAP and are not necessarily indicative of the results to be expected for the full fiscal year or for any other future annual or interim periods.

	Three Months Ended
	Dec 31, 2017			Sept 30, 2017			June 30, 2017			March 31, 2017			Dec 31, 2016			Sept 30, 2016			June 30, 2016		March 31, 2016
Revenue	$	7,761		$	8,112		$	8,039		$	7,230		$	5,888		$	7,628		$	7,396	$	6,244
Cost of revenue		3,473			3,427			3,369			2,952			2,899			3,388			3,683		2,765
Gross profit		4,288			4,685			4,670			4,278			2,989			4,240			3,713		3,479
Operating expenses
Research and development		1,565			1,156			1,197			1,465			1,004			1,180			1,101		1,095
Selling, general and administrative		2,068			1,541			1,357			1,227			1,117			1,099			1,417		1,045
Total operating expenses		3,633			2,697			2,554			2,692			2,121			2,279			2,518		2,140
Income from operations		655			1,988			2,116			1,586			868			1,961			1,195		1,339
Other income (expense)		(4	)		(59	)		(2	)		(8	)		(10	)		(1	)		3		8
Income before income taxes		651			1,929			2,114			1,578			858			1,960			1,198		1,347
Income taxes		591			646			739			539			419			630			390		443
Net income	$	60		$	1,283		$	1,375		$	1,039		$	439		$	1,330		$	808	$	904
Net income per share allocable to common    stockholders:
Basic	$	—		$	0.09		$	0.09		$	0.07		$	0.03		$	0.09		$	0.06	$	0.06
Diluted	$	—		$	0.08		$	0.09		$	0.07		$	0.03		$	0.09		$	0.05	$	0.06

65

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

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 the design and operation of our disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, as of the end of the period covered by this Annual Report on Form 10-K. Based on management’s evaluation, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures are effective at a reasonable assurance level.

Management’s Report on Internal Control over Financial Reporting

Management is responsible establishing and maintaining adequate internal control over financial reporting as defined by Rules 13a-15(f) and 15d-15(f) of the Exchange Act. This Annual Report on Form 10-K does not include a report of management’s assessment regarding internal control over financial reporting or an attestation report of our registered public accounting firm due to a transition period established by rules of the Securities and Exchange Commission for newly public companies.

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting identified in connection with the evaluation required by Rules 13a-15(d) and 15d-15(d) of the Exchange Act that occurred during the three months ended December 31, 2017 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Item 9B. Other Information

None.

66

PART III

Item 10. Directors, Executive Officers and Corporate Governance

The information required by this item is incorporated by reference to our Proxy Statement for our 2018 annual meeting of stockholders which will be filed with the SEC not later than 120 days after the end of our fiscal year ended December 31, 2017.

Item 11. Executive Compensation.

The information required by this item is incorporated by reference to our Proxy Statement for our 2018 annual meeting of stockholders which will be filed with the SEC not later than 120 days after the end of our fiscal year ended December 31, 2017.

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

The information required by this item is incorporated by reference to our Proxy Statement for our 2018 annual meeting of stockholders which will be filed with the SEC not later than 120 days after the end of our fiscal year ended December 31, 2017.

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

The information required by this item is incorporated by reference to our Proxy Statement for our 2018 annual meeting of stockholders which will be filed with the SEC not later than 120 days after the end of our fiscal year ended December 31, 2017.

Item 14. Principal Accounting Fees and Services

The information required by this item is incorporated by reference to our Proxy Statement for our 2018 annual meeting of stockholders which will be filed with the SEC not later than 120 days after the end of our fiscal year ended December 31, 2017.

67

PART IV

Item 15. Exhibits, Financial Statement Schedules

(a) Documents filed as a part of this Annual Report on Form 10-K are as follows:

(1) Consolidated Financial Statements

Our Consolidated Financial Statements are listed in the “Index to Consolidated Financial Statements” Under Part II, Item 8 Annual Report on Form 10-K.

(2) Financial Statement Schedules

All financial statement schedules have been omitted because they are not applicable, not material, or the required information is shown in the consolidated financial statements or the notes thereto in this Annual Report on Form 10-K.

(3) Exhibits

The following exhibits are filed with this Annual Report on Form 10-K

Item 16. Form 10-K Summary

None.

68

Exhibit Index

Exhibit Number	Description
21.1	List of Subsidiaries of the Registrant
23.1	Consent of Independent Registered Public Accounting Firm
31.1	Certification of Principal Executive Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Certification of Principal Financial and Accounting Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1*	Certification of Principal Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2*	Certification of Principal Financial and Accounting Officer Pursuant to 18 U.S.C. Section 1350, as Adopted 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

* In accordance with Item 601(b)(32)(ii) of Regulation S-K and SEC Release No. 34-47986, the certifications furnished in Exhibits 32.1 and 32.2 hereto are deemed to accompany this Form 10-K and will not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (the “Exchange Act”) or deemed to be incorporated by reference into any filing under the Exchange Act or the Securities Act of 1933 except to the extent that the registrant specifically incorporates it by reference.

69

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this Report to be signed on its behalf by the undersigned, thereunto duly authorized.

	Company Name
Date: March 14, 2018	By:	/s/ Fumihiro Kozato
		Fumihiro Kozato
		President and Chief Executive Officer (Principal Executive Officer)

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

Name		Title	Date
/s/ Fumihiro Kozato		President and Chief Executive Officer	March 14, 2018
Name		(Principal Executive Officer)
/s/ Yukiko Tegarden		Chief Financial Officer	March 14, 2018
Name		(Principal Financial and Accounting Officer)
*		Director	March 14, 2018
Robert Cochran
*		Director	March 14, 2018
Fun-Kai Liu
*		Director	March 14, 2018
Koji Mori
*		Director	March 14, 2018
Dr. Yaichi Aoshima, Ph.D.
*By	/s/ Fumihiro Kozato
	Fumihiro Kozato Attorney-in-Fact

70

EX-21.1

Exhibit 21.1

SUBISIDIARIES OF TECHPOINT, INC.

Name	Jurisdiction of Incorporation
Techpoint Japan KK	Japan
Techpoint Technology (Shenzhen) Co., Ltd.	China

EX-23.1

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Techpoint, Inc.

San Jose, California

We hereby consent to the incorporation by reference in the Registration Statement on Form S­8 (No. 333-221096) of Techpoint, Inc. of our report dated March 14, 2018, relating to the consolidated financial statements, which appears in this Form 10-K.

/s/ BDO USA, LLP

San Jose, California

March 14, 2018

EX-31.1

Exhibit 31.1

PRINCIPAL EXECUTIVE OFFICER’S CERTIFICATION PURSUANT TO

RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,

AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Fumihiro Kozato, certify that:

1. I have reviewed this Annual Report on Form 10-K of Techpoint, Inc.;

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

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

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

(c) 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.

Date: March 14, 2018	By:	/s/ Fumihiro Kozato
		Fumihiro Kozato
		President and Chief Executive Officer (Principal Executive Officer)

EX-31.2

Exhibit 31.2

PRINCIPAL FINANCIAL AND ACCOUNTING OFFICER’S CERTIFICATION PURSUANT TO

RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,

AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Yukiko Tegarden, certify that:

1. I have reviewed this Annual Report on Form 10-K of Techpoint, Inc.;

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

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

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

(c) 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.

Date: March 14, 2018	By:	/s/ Yukiko Tegarden
		Yukiko Tegarden
		Chief Financial Officer (Principal Financial and Accounting Officer)

EX-32.1

Exhibit 32.1

PRINCIPAL EXECUTIVE OFFICER’S CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Techpoint, 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”), the undersigned officer of the Company certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to such officer’s 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.

Date: March 14, 2018	By:	/s/ Fumihiro Kozato
		Fumihiro Kozato
		President and Chief Executive Officer (Principal Executive Officer)

EX-32.2

Exhibit 32.2

PRINCIPAL FINANCIAL AND ACCOUNTING OFFICER’S CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Techpoint, 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”), the undersigned officer of the Company certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to such officer’s 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.

Date: March 14, 2018	By:	/s/ Yukiko Tegarden
		Yukiko Tegarden
		Chief Financial Officer (Principal Financial and Accounting Officer)

XML

Document and Entity Information - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Mar. 09, 2018	Sep. 29, 2017
Document And Entity Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY
Trading Symbol	0001556898
Entity Registrant Name	Techpoint, Inc.
Entity Central Index Key	0001556898
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	Non-accelerated Filer
Entity Public Float			$ 199,591,762
Common Stock, Par Value
Document And Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		17,114,353
Japanese Depositary Shares | Japan Exchange Group
Document And Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		4,403,814

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 21,536	$ 10,006
Accounts receivable	93	79
Inventory	2,847	2,583
Prepaid expenses and other current assets	978	273
Total current assets	25,454	12,941
Property and equipment - net	325	401
Deferred tax assets	652	1,022
Other assets	161	1,188
Total assets	26,592	15,552
Current liabilities:
Accounts payable	760	777
Accrued liabilities	573	481
Liability related to early exercised stock options	152	223
Customer deposits	6	745
Total current liabilities	1,491	2,226
Other liabilities	133	90
Total liabilities	1,624	2,316
Commitments and contingencies (Note 5)
Stockholders’ equity
Preferred stock, value		8,794
Additional paid-in-capital	17,580	813
Retained earnings	7,386	3,629
Total stockholders’ equity	24,968	13,236
Total liabilities and stockholders’ equity	26,592	15,552
Convertible Preferred Stock
Stockholders’ equity
Preferred stock, value
Total stockholders’ equity		8,794
Series Seed Convertible Preferred Stock
Stockholders’ equity
Preferred stock, value		1,156
Series A Convertible Preferred Stock
Stockholders’ equity
Preferred stock, value		4,477
Series B Convertible Preferred Stock
Stockholders’ equity
Preferred stock, value		3,161
Preferred Stock, Par Value
Stockholders’ equity
Preferred stock, value
Common Stock, Par Value
Stockholders’ equity
Common stock, value	$ 2

XML

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Preferred stock, shares authorized		11,660,000
Preferred stock, shares issued		10,742,500
Preferred stock, shares outstanding		10,742,500
Preferred stock, aggregate liquidation value		$ 8,830
Common stock, shares authorized	75,000,000
Common stock, shares issued	16,752,171
Common stock, shares outstanding	16,752,171
Common stock, par value	$ 0.0001
Convertible Preferred Stock With No Par Value
Preferred stock, no par value	$ 0	$ 0
Preferred stock, shares authorized	11,660,000	11,660,000
Series Seed Convertible Preferred Stock
Preferred stock, shares authorized		4,660,000
Preferred stock, shares issued		4,660,000
Preferred stock, shares outstanding		4,660,000
Preferred stock, aggregate liquidation value		$ 1,165
Preferred stock, par value		$ 0.25
Series A Convertible Preferred Stock
Preferred stock, shares authorized		4,500,000
Preferred stock, shares issued		4,500,000
Preferred stock, shares outstanding		4,500,000
Preferred stock, aggregate liquidation value		$ 4,500
Preferred stock, par value		$ 1.00
Series B Convertible Preferred Stock
Preferred stock, shares authorized		2,500,000
Preferred stock, shares issued		1,582,500
Preferred stock, shares outstanding		1,582,500
Preferred stock, aggregate liquidation value		$ 3,165
Preferred stock, par value		$ 2.00
Preferred Stock, Par Value
Preferred stock, shares authorized	5,000,000
Preferred stock, par value	$ 0.0001
Common Stock, No Par Value
Common stock, no par value
Common stock, shares authorized		20,500,000
Common stock, shares issued		3,725,238
Common stock, shares outstanding		3,725,238
Common Stock, Par Value
Common stock, shares authorized	75,000,000
Common stock, shares issued	16,752,171
Common stock, shares outstanding	16,752,171
Common stock, par value	$ 0.0001

XML

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Statement [Abstract]
Revenue	$ 7,761	$ 8,112	$ 8,039	$ 7,230	$ 5,888	$ 7,628	$ 7,396	$ 6,244	$ 31,142	$ 27,156	$ 20,245
Cost of revenue	3,473	3,427	3,369	2,952	2,899	3,388	3,683	2,765	13,221	12,735	8,803
Gross profit	4,288	4,685	4,670	4,278	2,989	4,240	3,713	3,479	17,921	14,421	11,442
Operating expenses
Research and development	1,565	1,156	1,197	1,465	1,004	1,180	1,101	1,095	5,383	4,380	4,964
Selling, general and administrative	2,068	1,541	1,357	1,227	1,117	1,099	1,417	1,045	6,193	4,678	2,592
Total operating expenses	3,633	2,697	2,554	2,692	2,121	2,279	2,518	2,140	11,576	9,058	7,556
Income from operations	655	1,988	2,116	1,586	868	1,961	1,195	1,339	6,345	5,363	3,886
Other income (expense)	(4)	(59)	(2)	(8)	(10)	(1)	3	8	(73)		3
Income before income taxes	651	1,929	2,114	1,578	858	1,960	1,198	1,347	6,272	5,363	3,889
Income taxes	591	646	739	539	419	630	390	443	2,515	1,882	(168)
Net income	$ 60	$ 1,283	$ 1,375	$ 1,039	$ 439	$ 1,330	$ 808	$ 904	3,757	3,481	4,057
Net income allocable to preferred stockholders									1,936	2,627	3,170
Net income allocable to common stockholders									$ 1,821	$ 854	$ 887
Net income per share allocable to common stockholders:
Basic		$ 0.09	$ 0.09	$ 0.07	$ 0.03	$ 0.09	$ 0.06	$ 0.06	$ 0.25	$ 0.24	$ 0.30
Diluted		$ 0.08	$ 0.09	$ 0.07	$ 0.03	$ 0.09	$ 0.05	$ 0.06	$ 0.24	$ 0.23	$ 0.28
Weighted-average shares outstanding in computing net income per share allocable to common stockholders
Basic									7,145,641	3,493,946	3,007,311
Diluted									8,056,329	4,358,387	3,774,146

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Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Convertible Preferred Stock	Common Stock	Additional Paid-In Capital	Retained Earnings
Beginning Balances at Dec. 31, 2014	$ 4,976	$ 8,794		$ 91	$ (3,909)
Beginning Balances, Shares at Dec. 31, 2014		10,742,500	2,893,084
Issuance of common stock upon exercise of stock options and vesting of early exercised options	43			43
Issuance of common stock upon exercise of stock options and vesting of early exercised options, Shares			439,768
Stock-based compensation	164			164
Net income	4,057				4,057
Ending Balances at Dec. 31, 2015	9,240	$ 8,794		298	148
Ending Balances, Shares at Dec. 31, 2015		10,742,500	3,332,852
Issuance of common stock upon exercise of stock options and vesting of early exercised options	76			76
Issuance of common stock upon exercise of stock options and vesting of early exercised options, Shares			392,386
Stock-based compensation	439			439
Net income	3,481				3,481
Ending Balances at Dec. 31, 2016	13,236	$ 8,794		813	3,629
Ending Balances, Shares at Dec. 31, 2016		10,742,500	3,725,238
Conversion of convertible preferred stock to common stock upon IPO		$ (8,794)	$ 2	8,792
Conversion of convertible preferred stock to common stock upon IPO, Shares		(10,742,500)	10,742,500
Issuance of common stock upon IPO, net of issuance costs	5,157			5,157
Issuance of common stock upon IPO, net of issuance costs, Shares			1,520,000
Issuance of common stock upon exercise of over-allotment option, net of issuance costs	1,200			1,200
Issuance of common stock upon exercise of over-allotment option, net of issuance costs, Shares			228,000
Issuance of common stock upon exercise of stock options and vesting of early exercised options	170			170
Issuance of common stock upon exercise of stock options and vesting of early exercised options, Shares			506,433
Issuance of common stock upon vesting of RSUs, Shares			30,000
Stock-based compensation	1,448			1,448
Net income	3,757				3,757
Ending Balances at Dec. 31, 2017	$ 24,968		$ 2	$ 17,580	$ 7,386
Ending Balances, Shares at Dec. 31, 2017			16,752,171

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash Flows From Operating Activities
Net income	$ 3,757	$ 3,481	$ 4,057
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	207	160	94
Stock-based compensation	1,448	439	164
Write-off of long lived assets	9	7
Deferred income taxes	370	(193)	(829)
Changes in operating assets and liabilities:
Accounts receivable	(14)	(77)	(2)
Inventory	(264)	(1,202)	(286)
Prepaid expenses and other current assets	(705)	193	(322)
Other assets	(18)	(23)	(151)
Accounts payable	85	(791)	1,134
Accrued expenses	180	200	52
Customer deposits	(739)	(614)	1,323
Other liabilities	43	28	53
Net cash provided by operating activities	4,359	1,608	5,287
Cash Flows From Investing Activities
Purchase of property and equipment	(170)	(346)	(88)
Net cash used in investing activities	(170)	(346)	(88)
Cash Flows From Financing Activities
Proceeds from initial public offering, net of underwriter commissions	9,339
Net proceeds from exercise of stock options	98	113	184
Payments of deferred offering costs	(2,096)	(832)
Net cash provided by (used in) financing activities	7,341	(719)	184
Net increase in cash and cash equivalents	11,530	543	5,383
Cash and cash equivalents at beginning of period	10,006	9,463	4,080
Cash and cash equivalents at end of period	21,536	10,006	9,463
Supplemental Disclosure of Cash Flow Information
Cash paid for income taxes	2,585	1,819	821
Supplemental Disclosure of Noncash Investing and Financing Information
Conversion of preferred stock to common stock upon initial public offering	8,792
Vesting of early exercised options	99	76	16
Property and equipment purchased but not yet paid	$ 21	51
Unpaid deferred offering costs		$ 161	$ 53

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Organization and Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2017

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Organization and Summary of Significant Accounting Policies

1. Organization and Summary of Significant Accounting Policies

Organization

Techpoint, Inc. and its wholly-owned subsidiaries (the “Company”) was originally incorporated in California in April 2012 and reincorporated into Delaware in July 2017. The Company is a fabless semiconductor company that designs, markets and sells mixed-signal integrated circuits for multiple video applications in the security surveillance and automotive markets. The Company is headquartered in San Jose, California.

Initial Public Offering

On September 29, 2017, the Company completed its initial public offering (“IPO”) of Japanese depositary shares (“JDS”). In connection with the IPO, the Company sold 1,520,000 JDSs, represented by 1,520,000 shares of our common stock at a price to the public of $5.85 per share and received net proceeds of $8.1 million, after deducting underwriting discounts and commissions of $0.7 million. Additionally, offering costs incurred by the Company totaled $3.0 million. Prior to the closing of the Company’s IPO, all outstanding shares of its preferred stock converted to common stock on a one-to-one basis.

On October 25, 2017, the managing underwriter of our IPO elected to purchase an additional 228,000 shares of JDSs, represented by 228,000 shares of common stock, pursuant to the underwriters’ over-allotment option. We subsequently completed the sale at the IPO price of $5.85 per share and received net proceeds of $1.2 million, after deducting underwriting discounts and commissions of $0.1 million.

Basis of Consolidation and Significant Accounting Policies

The accompanying consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, and have been prepared in conformity with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”). All intercompany balances and transactions have been eliminated. The functional currency of each of the Company’s subsidiaries is the U.S. dollar. Foreign currency gains or losses are recorded as other income (expense) in the Consolidated Statements of Operations.

Use of Management’s Estimates

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates, judgments and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts ofrevenue and expenses during the reporting period. Significant estimates included in the consolidated financial statements include inventory valuation, valuation allowance for recorded deferred tax assets, and stock-based compensation. These estimates are based upon information available as of the date of the consolidated financial statements. Actual results could differ materially from those estimates.

Concentration of Customer and Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of cash and cash equivalents and trade receivables. Risks associated with cash and cash equivalents are mitigated by banking with creditworthy institutions. The Company generally requires advance payments from customers. The Company also performs credit evaluations of its customers and provides credit to certain customers in the normal course of business. The Company has not incurred bad debt write-offs during any of the periods presented.

For the year ended December 31, 2017, 2016 and 2015, one customer, a distributor, accounted for 74%, 85% and 82% of revenue, respectively. Additionally, for the year ended December 31, 2017, 2016 and 2015, one of our end-customers accounted for 59%, 62% and 78% of revenue, respectively, which primarily occurred through this distributor. No other customers accounted for 10% or greater of our revenue in the year ended December 31, 2017, 2016 or 2015. Additionally, no other end-customer accounted for 10% or greater of our revenue for the year ended December 31, 2017. One other end-customer accounted for 10% or greater of our revenue for the year ended December 31, 2016. No other end-customer accounted for 10% or greater of our revenue for the year ended December 31, 2015.

Concentration of Supplier Risk

The Company is a fabless producer of semiconductors and is dependent on three subcontractors for substantially all of its production requirements. The failure of either subcontractor to fulfill the production requirements of the Company on a timely basis would adversely impact future results. Although there are other subcontractors that are capable of providing similar services, an unexpected change in either subcontractor would cause delays in the Company’s products and potentially result in a significant loss of revenue.

Cash and Cash Equivalents

The Company considers all highly liquid financial instruments purchased with an original maturity of three months or less at the date of purchase to be cash equivalents. Cash and cash equivalents consist of cash on deposit with banks and money market funds, the fair value of which approximates cost.

Fair Value of Financial Instruments

The Company estimates certain financial assets and liabilities at fair value based on available market information and valuation methodologies considered to be appropriate. However, considerable judgment is required in interpreting market data to develop the estimate of fair value. The use of different market assumptions and/or estimation methodologies could have a material effect on estimated fair value amounts. See Note 3: “Fair Value Measurements” of these Notes to Consolidated Financial Statements for a further discussion on fair value of financial instruments.

Inventories

Inventories are stated at the lower of cost or market. Upon the adoption of ASU 2015-11 in the first quarter of fiscal 2017, inventories are stated at the lower of cost or net realizable value. Cost is computed using the standard cost, which approximates actual cost determined on a first-in, first-out basis. Inventories include work in process and finished good parts that may be specialized in nature and subject to rapid obsolescence. Because of the cyclical nature of the market, inventory levels, obsolescence of technology, and product life cycles, the Company generally writes down inventories to net realizable value based on forecasted product demand. Inventory write downs for excess quantity and technological obsolescence are charged to cost of sales when evidence indicates clearly that a loss has been sustained. The amount written down for the years ended December 31, 2017 and 2016 was $0.4 million and $0.8 million, respectively.

Property and Equipment

Property and equipment, are stated at cost less accumulated depreciation, and are depreciated using the straight-line method over the estimated useful lives of the assets. The estimated useful lives range from two to three years for computer equipment, furniture and leasehold improvements.

The Company evaluates the recoverability of property, plant and equipment in accordance with Accounting Standards Codification (“ASC”) No. 360, Accounting for the Property, Plant, and Equipment. (“ASC 360”). The Company performs periodic reviews to determine whether facts and circumstances exist that would indicate that the carrying amounts of property and equipment exceeds their fair values. If facts and circumstances indicate that the carrying amount of property and equipment might not be fully recoverable, projected undiscounted net cash flows associated with the related asset or group of assets over their estimated remaining useful lives are compared against their respective carrying amounts. In the event that the projected undiscounted cash flows are not sufficient to recover the carrying value of the assets, the assets are written down to their estimated fair values based on their expected discounted future cash flows attributable to those assets.

Product Warranty

The Company generally warrants its products for one year from the date of shipment against defects. The Company accrues for anticipated warranty costs upon shipment based on the number of shipped units, historical analysis of the volume of product returned under the warranty program, management’s judgment regarding anticipated rates of warranty claims and associated repair costs.

Employee Benefit Plan

The Company sponsors a 401(k) tax-deferred savings plan for all employees in the United States who meet certain eligibility requirements. Participants may contribute up to the amount allowable as a deduction for federal income tax purposes.The 401(k) Plan provides for a discretionary employer-matching contribution. The Company has not made any matching contributions to the 401(k) Plan to date.

Revenue Recognition

Revenue from the sale of the Company’s products is recognized when all of the following criteria are met: (1) persuasive evidence of an arrangement exists; (2) the product has been delivered; (3) the price is fixed or determinable; and (4) collection is reasonably assured.

The Company principally sells its products to distributors who, in turn, sell to ODMs, contract manufacturers and design houses. The Company generally recognizes revenue when it ships its product to the distributors. The Company’s delivery terms are primarily free on board shipping point, at which time title and all risks of ownership are transferred to the distributor. As of December 31, 2017 and 2016, substantially all of the Company’s customers paid in advance of shipment, and no stock rotation, price protection or return rights were offered.

Research and Development Costs

Research and development costs are expensed as incurred. Such costs consist primarily of expenditures for labor, benefits and mask sets.

Stock-Based Compensation

The Company measures the cost of employee services received in exchange for equity incentive awards, including stock options, based on the grant date fair value of the award. The fair value is estimated using the Black-Scholes option pricing model which requires us to estimate certain key assumptions including, stock price, future stock price volatility, expected term of the options, risk free rates, and dividend yields. The Company adjusts compensation expense for forfeiture of equity incentive awards as they occur. The resulting cost is recognized over the period that the employee is required to provide services for the award, which is usually the vesting period. The Company recognizes compensation expense over the vesting period using the straight-line method and classifies these amounts based on the department to which the related employee is assigned. See Note 11 “Stock-Based Compensation” for a description of the Company’s stock-based employee compensation plans and the assumptions the Company uses to calculate the fair value of stock-based employee compensation.

Stock-based awards issued to non-employees are recognized as expense over the requisite service period at their then current fair value. The Company determines the fair value of its stock-based awards issued to non-employees utilizing the Black-Scholes option pricing model. Stock-based compensation expense for stock-based awards issued to nonemployees is recognized over the requisite service period or when it is probable that the performance condition will be satisfied. The fair value of stock-based awards to non-employees is measured at each reporting period until a measurement date is reached.

Income Taxes

The Company accounts for income taxes using an asset and liability approach as prescribed in ASC 740-10, Income Taxes (“ASC 740-10”). The Company records the amount of taxes payable or refundable for the current and prior years and deferred tax assets and liabilities for the future tax consequences of events that have been recognized in the Company’s financial statements or tax returns. A valuation allowance is recorded to reduce deferred tax assets when it is more likely than not that a tax benefit will not be realized.

ASC 740-10 prescribes a recognition threshold and measurement framework for the financial statement reporting and disclosure of an income tax position taken or expected to be taken on a tax return. Under ASC 740-10, a tax position is recognized in the financial statements when it is more likely than not, based on the technical merits, that the position will be sustained upon examination, including resolution of any related appeals or litigation processes. A tax position that meets the recognition threshold is then measured to determine the largest amount of the benefit that has a greater than 50% likelihood of being realized upon settlement. The Company recognizes interest and penalties related to unrecognized tax benefits as a component of the provision for income taxes in the Consolidated Statements of Income.

The calculation of tax liabilities involves significant judgment in estimating the impact of uncertainties in the application of complex tax laws across multiple tax jurisdictions. Although ASC 740-10 providesclarification on the accounting for uncertainty in income taxes recognized in the financial statements, the recognition threshold and measurement framework will continue to require significant judgment by management. Resolution of these uncertainties in a manner inconsistent with the Company’s expectations could have a material impact on the Company’s results of operations.

Recently Adopted Accounting Pronouncements

Stock Compensation Guidance. In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-09 (ASC Topic 718), Stock Compensation — Improvements to Employee Share-Based Payment Accounting, which simplifies the accounting for share based payment transactions, including the income tax consequences, forfeitures, and statutory tax withholding requirements, as well as classification on the statement of cash flows. ASU 2016-09 is effective for the Company beginning the first quarter of fiscal 2017. The Company adopted the guidance in the first quarter of fiscal 2017, which resulted in no material impacts on its financial position, results of operations, or cash flows, and expects the primary impact of this standard to be the income tax effects of awards recognized in the income statement when the awards are vested or settled. The potential tax impacts remain unknown until the award vest or settlement date.

Inventory Measurement Guidance. In July 2015, the FASB issued ASU 2015-11, Simplifying the Measurement of Inventory, amending ASC 330. Upon adoption, this topic supersedes the existing guidance under ASC 330 and aims to simplify the subsequent measurement of inventory. Currently, inventory can be measured at the lower of cost or market, which could result in several potential outcomes, as market could be replacement cost, net realizable value or net realizable value less an approximately normal profit margin. The major amendments would be as follows: 1. Inventory should be measured at the lower of cost or net realizable value. 2. Net realizable value is the estimated selling price in the ordinary course of business less reasonably predictable costs of completion, disposal and transportation. 3. The amendment does not apply to inventory measured under LIFO or the retail inventory method. 4. The amendment does apply to all other inventory, which includes inventory measured via FIFO or average cost. ASU 2015-11 became effective for periods beginning after December 15, 2016 (including interim reporting periods within those fiscal years), or the first quarter of fiscal 2017. The Company adopted this guidance in the first quarter of fiscal 2017, which resulted in no material impact on its consolidated financial statements.

Recently Issued Accounting Pronouncements Not Yet Adopted

Lease Guidance. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) (“ASU 2016-02”). ASU 2016-02 requires lessees to recognize all leases with terms in excess of one year on their balance sheet as a right-of-use asset and a lease liability at the commencement date. The new standard also simplifies the accounting for sale and leaseback transactions. The amendments in this update are effective for annual periods beginning after December 15, 2018, and interim periods therein and must be adopted using a modified retrospective method for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. Early adoption is permitted. The Company does not expect that the adoption of this amendment will have a material impact on its consolidated financial statements.

Revenue Recognition Guidance. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, creating ASC Topic 606. Upon adoption, this topic supersedes the existing guidance under ASC 605 and aims to simplify the number of requirements to follow for revenue recognition and make revenue recognition more comparable across various entities, industries, jurisdictions and capital markets. There are 5 core principles: 1. Identify the contract(s) with a customer. 2. Identify the performance obligations in the contract. 3. Determine the transaction price. 4. Allocate the transaction price to performance obligations in the contract. 5. Recognize revenue when (or as) the entity satisfies a performance obligation. Additional considerations under this update include: accounting for costs to obtain or fulfill a contract with a customer and additional quantitative and qualitative disclosures. ASU 2014-09 will become effective for periods beginning after December 15, 2017 (including interim reporting periods within those periods), or the first quarter 2018, and allows for retrospective or modified retrospective application.

The Company has substantially completed its evaluation of the effect of the standard on the Company’s financial statements. The Company’s evaluation focused on the review of significant customer contracts as well as business processes, systems and controls required to support appropriate recognition and disclosure under the new standard. Based on the Company’s evaluation and as the Company does not offer stock rotation, price protection or return rights for its product sales, the Company has not identified any expected material impact on the timing and measurement of revenues from the review of its existing customer contracts. The Company will evaluate new contracts with customers as they are obtained and will adopt the standard using the modified retrospective approach in the first quarter of 2018.

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Balance Sheet Components

12 Months Ended

Dec. 31, 2017

Balance Sheet Related Disclosures [Abstract]

Balance Sheet Components

2. Balance Sheet Components

Inventory

Inventory consists of the following (in thousands):

	December 31,		December 31,
	2017		2016
Finished goods	$	1,633	$	1,741
Work in process		1,214		842
Total inventory	$	2,847	$	2,583

Property and Equipment - Net

Property and equipment - net consists of the following (in thousands):

	December 31,			December 31,
	2017			2016
Computer equipment	$	687		$	605
Leasehold improvements		59			22
Furniture		30			37
Total property and equipment		776			664
Less: accumulated depreciation		(451	)		(263	)
Total property and equipment - net	$	325		$	401

The Company recorded $0.2 million and $0.2 million of depreciation expense for the year ended December 31, 2017 and 2016, respectively.

Accrued Liabilities

Accured liabilities consist of the following (in thousands):

	December 31,		December 31,
	2017		2016
Payroll-related expenses	$	291	$	144
Engineering services		131		110
Accrued warranty		73		83
Taxes payable		37		27
Professional fees		23		95
Other		18		22
Total accrued liabilities	$	573	$	481

Customer Deposits

Customer deposits represent payments received in advance of shipments. Customer deposits were $6,000 and $0.7 million as of December 31, 2017 and 2016, respectively.

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Fair Value Measurements

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Fair Value Measurements

3. Fair Value Measurements

Fair value is defined as the exchange price that would be received from selling an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The Company measures financial assets and liabilities at fair value at each reporting period using a fair value hierarchy which requires us to maximize the use of observable inputs and minimize the use of unobservable inputs. A financial instrument’s classification within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Three levels of inputs may be used to measure fair value:

Level 1. Quoted prices in active markets for identical assets or liabilities.

Level 2. Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.

Level 3. Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities, including pricing models, discounted cash flow methodologies and similar techniques.

Financial assets measured at fair value on a recurring basis were as follows:

	Fair Value Measurement at Reporting Date Using
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
As of December 31, 2017
Assets:
Money market funds	$	6,951	$	—	$	—	$	6,951
As of December 31, 2016
Assets:
Money market funds	$	4,932	$	—	$	—	$	4,932

As of December 31, 2017 and 2016, money market funds are classified as Level 1 because they are valued using quoted market prices and are included in cash and cash equivalents.

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Segment Information

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Segment Information

4. Segment Information

Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or group, in deciding how to allocate resources and in assessing performance.

The Company’s chief operating decision maker, the chief executive officer, reviews financial information presented on a consolidated basis for purposes of regularly making operating decisions and assessing financial performance. Accordingly, the Company considers itself to be in one reportable segment, which is comprised of one operating segment, the designing, marketing and selling of mixed-signal integrated circuits for the security surveillance and automotive markets.

Product revenue from customers is designated based on the geographic region to which the product is delivered. Revenue by geographic region was as follows (in thousands):

	Year Ended
	December 31,
	2017		2016		2015
China	$	26,453	$	23,815	$	17,637
South Korea		2,857		1,600		1,470
Taiwan		821		1,214		1,128
Other		1,011		527		10
Total revenue	$	31,142	$	27,156	$	20,245

Revenue by principal product lines were as follows (in thousands):

	Year Ended
	December 31,
	2017		2016		2015
Security surveillance	$	28,143	$	26,531	$	20,237
Automotive		2,999		625		8
Total revenue	$	31,142	$	27,156	$	20,245

Long-lived assets are attributed to the geographic region where they are located. Net long-lived assets by geographic region were as follows (in thousands):

	December 31,		December 31,
	2017		2016
Taiwan	$	205	$	255
United States		92		83
Japan		16		39
China		9		19
South Korea		3		5
Total property and equipment - net	$	325	$	401

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Commitments and Contingencies

12 Months Ended

Dec. 31, 2017

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

5. Commitments and Contingencies

Operating leases

The Company leases facilities under non-cancellable lease agreements expiring through fiscal year 2020.

As of December 31, 2017, the aggregate future minimum lease payments under operating leases consist of the following (in thousands):

Year Ending December 31,	Amount
2018	$	469
2019		520
2020		60
Total	$	1,049

Rent expense under operating leases was $0.5 million and $0.4 million for the year ended December 31, 2017 and 2016, respectively.

Purchase Commitments

As of December 31, 2017, the Company had purchase commitments with its third-party suppliers through fiscal year 2018. Future minimum payments under purchase commitments are $0.1 million for the year ending December 31, 2018.

Litigation

Although the Company is not currently subject to any litigation, and no litigation is currently threatened against it, the Company may be subject to legal proceedings, claims and litigation, including intellectual property litigation, arising in the ordinary course of business. Such matters are subject to many uncertainties and outcomes and are not predictable with assurance. The Company accrues amounts that it believes are adequate to address any liabilities related to legal proceedings and other loss contingencies that the Company believes will result in a probable loss that is reasonably estimable.

Indemnification

During the normal course of business, the Company may make certain indemnities, commitments and guarantees which may include intellectual property indemnities to certain of the Company’s customers in connection with the sales of the Company’s products and indemnities for liabilities associated with the infringement of other parties’ technology based upon the Company’s products. The Company’s exposure under these indemnification provisions is generally limited to the total amount paid by a customer under the agreement. However, certain agreements include indemnification provisions that could potentially expose us to losses in excess of the amount received under the agreement. In addition, the Company indemnifies its officers, directors and certain key employees while they are serving in good faith in such capacities.

The Company has not recorded any liability for these indemnities, commitments and guarantees in the accompanying consolidated balance sheets. Where necessary, the Company accrues for losses for any known contingent liabilities, including those that may arise from indemnification provisions, when future payment is probable.

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Stockholders' Equity

12 Months Ended

Dec. 31, 2017

Equity [Abstract]

Stockholders' Equity

6. Stockholders’ Equity

Convertible Preferred Stock

The Company had authorized and issued Series Seed Preferred Stock (“Series Seed”), Series A preferred stock (“Series A”), and Series B preferred stock (“Series B”). Preferred stock outstanding as of December 31, 2016 consisted of the following (in thousands, except share and per share data):

	December 31, 2016
Series	Period Issued	Price per Share		Shares Authorized		Shares Issued and Outstanding		Aggregate Liquidation Value		Carrying Value
Seed	July 2012	$	0.25		4,660,000		4,660,000	$	1,165	$	1,156
A	November 2012 to June 2013	$	1.00		4,500,000		4,500,000		4,500		4,477
B	June 2014 to October 2014	$	2.00		2,500,000		1,582,500		3,165		3,161
Total					11,660,000		10,742,500	$	8,830	$	8,794

Prior to the closing of the Company’s IPO, all shares of the then-outstanding convertible preferred stock, as shown in the table above, converted on a one-for-one basis into common stock.

Preferred Stock

The Company was authorized to issue 5,000,000 shares of preferred stock with a $0.0001 par value per share as of December 31, 2017. The shares of preferred stock issued and outstanding was nil as of December 31, 2017.

Common Stock

The Company was authorized to issue 75,000,000 shares of common stock with $0.0001 par value per share as of December 31, 2017. The shares of common stock issued and outstanding was 16,752,171excluding 289,334 legally issued shares subject to repurchase related to the early exercise of options to purchase common stock as of December 31, 2017.

The Company has reserved the following number of shares of common stock for future issuances:

	December 31,
	2017
Outstanding stock awards		1,593,568
Shares available for future issuance under the 2017    Stock Incentive Plan		3,933,649
Total common stock reserved for future issuances		5,527,217

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Stock Award Plan

12 Months Ended

Dec. 31, 2017

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock Award Plan

7. Stock Award Plan

Stock Incentive Plan

In April 2012, the Company adopted the 2012 Stock Option Plan (“2012 Plan”). The 2012 Plan provides for the granting of stock-based awards to employees, directors, and consultants under terms and provisions established by the Company’s board of directors. Under the terms of the 2012 Plan, options may be granted at an exercise price not less than fair market value. For employees holding more than 10% of the voting rights of all classes of stock, the exercise prices for incentive and nonstatutory stock options must be at least 110% of the fair market value of the common stock on the grant date, as determined by the Company’s board of directors. The terms of options granted under the 2012 Plan may not exceed ten years.

In August 2017, the Company adopted the 2017 Stock Option Plan (“2017 Plan”). The Company’s stockholders approved the 2017 Plan in September 2017 and it became effective immediately prior to the closing of the Company’s IPO. In connection with the adoption of the 2017 Plan, no additional awards and no shares of common stock remain available for future issuance under the 2012 Plan and shares reserved but not issued under the 2012 Plan as of the effective date of the 2017 Plan were included in the number of shares reserved for issuance under the 2017 Plan. The Company has reserved 3,933,649 shares of its common stock for issuance under the 2017 Plan, including 1,453,649 shares reserved but not issued under the 2012 Plan as of the effective date of the 2017 Plan. In addition, shares subject to awards under the 2012 Plan that are forfeited or terminated will be added to the 2017 Plan. The number of shares that have been authorized for issuance under the 2017 Plan will be automatically increased on the first day of each fiscal year beginning on January 1, 2018 and ending on (and including) January 1, 2027, in an amount equal to the lesser of (1) 4% of the outstanding shares of our common stock on the last day of the immediately preceding fiscal year, or (2) another amount determined by the Company’s board of directors. The 2017 Plan provides for the granting of incentive stock options, or ISOs, within the meaning of Section 422 of the Code to employees and the granting of nonstatutory stock options, or NSOs, to employees, non-employee directors, advisors and consultants. The 2017 Plan also provides for the grants of restricted stock, stock appreciation rights, or SARs, stock unit and cash-based awards to employees, non-employee directors, advisors and consultants.

The Company has various vesting agreements with employees. Options granted generally vest over a five-year period and generally are exercisable up to 10 years.

Early Exercise of Stock Options

Certain employees and directors have exercised option grants prior to vesting. The unvested shares are subject to a repurchase right held by the Company at the original purchase price. The proceeds initially are recorded as liability related to early exercised stock options and reclassified to additional paid in capital as the repurchase right lapses. The Company issued 46,667 and 302,083 unvested shares of common stock upon early exercise for the year ended December 31, 2017 and 2016, respectively, for total exercise proceeds of $46,000 and $113,000, respectively. For the year ended December 31, 2017 and 2016, the Company repurchased 45,666 and 37,167 shares, respectively, of unvested common stock related to early exercised stock options at the original purchase price due to termination of employees. As of December 31, 2017 and 2016, 289,334 and 606,833 shares, respectively, held by employees and nonemployees were subject to repurchase at an aggregate price of $0.2 million and $0.2 million, respectively.

Stock Options

The Company’s stock option activity is summarized as follows:

	Options Available for Grant			Options Issued and Outstanding			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value (in thousands)
As of December 31, 2016		2,017,983			1,545,667		$	0.81		8.2	$	3,216
Authorized		2,500,000			—
Granted		(583,500	)		583,500		$	2.99
Exercised (1)		—			(506,433	)	$	0.34
Canceled		49,166			(49,166	)	$	0.41
As of December 31, 2017		3,983,649			1,573,568		$	1.78		8.4	$	24,556
Options vested and expected to vest as of    December 31, 2017					1,573,568		$	1.78		8.4	$	24,556
Options vested and exercisable as of    December 31, 2017					357,920		$	1.42		7.9	$	5,714

(1) Includes vesting of early-exercised options.

The stock options outstanding and exercisable by exercise price at December 31, 2017, are as follows:

		Options Outstanding						Options Vested and Exercisable
Exercise Price		Number Outstanding		Weighted- Average Remaining Contractual Life (Years)		Weighted- Average Exercise Price		Number Vested and Exercisable		Weighted- Average Exercise Price
$	0.10		14,167		5.6	$	0.10		—	$	—
$	0.16		128,750		6.1	$	0.16		72,333	$	0.16
$	0.37		317,584		7.4	$	0.37		64,500	$	0.37
$	0.97		263,833		8.2	$	0.97		68,828	$	0.97
$	2.51		269,401		8.7	$	2.51		95,626	$	2.51
$	2.89		52,000		9.2	$	2.89		—	$	—
$	2.93		372,833		9.4	$	2.93		49,133	$	2.93
$	3.18		155,000		9.6	$	3.18		7,500	$	3.18
			1,573,568		8.4	$	1.78		357,920	$	1.42

The aggregate intrinsic value of options exercised for the year ended December 31, 2017 and 2016 was $1.8 million and $0.8 million, respectively.

Restricted Stock Units

The Company’s restricted stock unit activity is summarized as follows:

	Number of Shares			Weighted-Average Grant Date Fair Value
As of December 31, 2016		30,000		$	2.89
Granted		20,000		$	19.42
Released		(30,000	)	$	2.89
Canceled		—
As of December 31, 2017		20,000		$	19.42

Restricted stock units are converted into shares of the Company’s common stock upon vesting on a one-for-one basis. Restricted stock unit awards generally vest over a five-year period and are subject to the grantee’s continued service with the Company.

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Stock-Based Compensation

12 Months Ended

Dec. 31, 2017

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-Based Compensation

8. Stock-Based Compensation

The following table summarizes the distribution of stock-based compensation expense (in thousands):

	Year Ended
	December 31,
	2017		2016		2015
Cost of revenue	$	31	$	15	$	7
Research and development		273		102		73
Selling, general and administrative		1,144		322		84
Total	$	1,448	$	439	$	164

The Company records stock-based compensation using the Black-Scholes option-pricing model. The Company recognizes such costs as compensation expense on a straight-line basis over the requisite service period. The Company’s valuation assumptions are as follows:

Fair value of common stock — Given the absence of a public trading market prior to our IPO, the Company’s Board of Directors considered numerous objective and subjective factors to determine the fair value of the Company’s common stock which included, but were not limited to (i) contemporaneous independent third-party valuations of the Company’s common stock; (ii) the rights and preferences of the Company’s preferred stock relative to common stock; (iii) the lack of marketability of common stock; (iv) developments in the business; and (v) the likelihood of achieving a liquidity event, such as an initial public offering or sale of the company, given prevailing market conditions.

Subsequent to our IPO, the fair value of the Company’s common stock was the per share closing price for our JDS as reported on the Mothers market of the Tokyo Stock Exchange on the date of grant.

Risk-free interest rate — The Company bases the risk-free interest rate used in the Black-Scholes option-pricing model on the implied yield available on U.S. Treasury zero-coupon issues with an equivalent expected term of the awards for each award group.

Expected term — The expected term represents the period that the Company’s stock-based awards are expected to be outstanding. To determine the expected term, we generally apply the simplified approach in which the expected term of an award is presumed to be the mid-point between the vesting date and the expiration date of the award as we do not have sufficient historical exercise data to provide a reasonable basis for an estimate of expected term.

Volatility — As the Company does not have a long trading history to determine the volatility of its common stock, the Company determines volatility based on the historical stock volatilities of a group of publicly listed guideline companies over a period equal to the expected terms of the awards.

Dividend yield — The Company has never declared or paid any cash dividends and does not currently plan to pay a cash dividend in the foreseeable future. Consequently, the Company used an expected dividend yield of zero.

Employee Stock Awards

The following table summarizes the weighted-average assumptions used in the Black-Scholes option-pricing model to determine fair value of stock awards:

	Year Ended
	December 31,
	2017			2016			2015
Expected term (in years)		6.28			6.19			6.30
Risk-free interest rate		2.01	%		1.38	%		1.67	%
Expected volatility		53	%		51	%		46	%
Dividend rate		0	%		0	%		0	%
Fair value of common stock	$	5.14		$	2.35		$	0.86

The weighted-average grant date fair value for employee stock awards for the year ended December 31, 2017, 2016 and 2015 was $3.71, $1.36 and $0.53, respectively. The remaining unrecognized stock-based compensation expense related to non-vested awards was $2.3 million and $0.8 million as of December 31, 2017 and 2016, respectively, and will be recognized over a weighted-average remaining period of approximately 3.7 and 3.7 years, respectively.

Non-Employee Stock Awards

The following table summarizes the weighted-average assumptions used in the Black-Scholes option-pricing model to determine fair value of stock awards:

	Year Ended
	December 31,
	2017			2016			2015
Expected term (in years)		10.00			10.00			10.00
Risk-free interest rate		2.30	%		2.02	%		2.09	%
Expected volatility		53	%		53	%		50	%
Dividend rate		0	%		0	%		0	%
Fair value of common stock	$	14.40		$	2.68		$	0.84

The weighted-average grant date fair value for non-employee stock awards for the year ended December 31, 2017, 2016 and 2015 was $7.34, $2.16 and $0.53, respectively. Non-employee stock awards are revalued at each reporting date and the relating stock-based compensation expense is recognized as awards vest. Non-employee stock-based compensation expense for unvested awards fluctuate as the fair value of our JDS, represented by common stock, fluctuates. The remaining unrecognized stock-based compensation expense related to non-vested awards was $0.3 million and $0.2 million as of December 31, 2017 and 2016, respectively, and will be recognized over a weighted-average remaining period of approximately 1.9 and 4.0 years, respectively.

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Net Income Per Share

12 Months Ended

Dec. 31, 2017

Earnings Per Share [Abstract]

Net Income Per Share

9. Net Income Per Share

For the periods presented prior to the Company’s IPO, basic and diluted net income per common share are presented in conformity with the two-class method required for participating securities. Prior to the closing of the Company’s IPO, all outstanding shares of its Series Seed, Series A, and Series B convertible preferred shares, which were participating securities, were converted to common stock on a one-to-one basis. The common stock issued for the conversion of 10,742,500 preferred shares were included in the calculation of the weighted-average shares outstanding for the year ended December 31, 2017.  

The following table presents the calculation of basic and diluted net income per share (amounts in thousands, except per share data):

	Year Ended
	December 31,
	2017		2016		2015
Numerator:
Basic:
Net income	$	3,757	$	3,481	$	4,057
Net income allocable to preferred    stockholders		1,936		2,627		3,170
Net income allocable to common stockholders		1,821		854		887
Diluted:
Net income		3,757		3,481		4,057
Net income allocable to preferred    stockholders		1,823		2,477		3,002
Net income allocable to common    stockholders		1,934		1,004		1,055
Denominator:
Basic shares:
Weighted-average shares outstanding in    computing basic net income per share    allocable to common stockholders		7,145,641		3,493,946		3,007,311
Diluted shares:
Effect of potentially dilutive securities:
Stock options (1)		910,688		864,441		766,835
Weighted-average shares used in computing    diluted net income per common share    allocable to common stockholders		8,056,329		4,358,387		3,774,146
Net income per common share:
Basic	$	0.25	$	0.24	$	0.30
Diluted	$	0.24	$	0.23	$	0.28

(1) Including early-exercised options.

The potentially dilutive securities outstanding related to stock options as of December 31, 2017, 2016 and 2015 that were excluded from the computation of diluted net income per common share for the periods presented as their effect would have been antidilutive was 7,000, 56,000 and 39,000 shares, respectively.

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Income Taxes

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Income Taxes

10. Income Taxes

The components of income before income taxes are as follows (in thousands):

	Year Ended
	December 31,
	2017		2016		2015
Domestic	$	6,141	$	5,311	$	3,888
Foreign		131		52		1
Income before income taxes	$	6,272	$	5,363	$	3,889

The components of the provision for income taxes are as follows (in thousands):

	Year Ended
	December 31,
	2017		2016			2015
Current:
Federal	$	2,089	$	2,034		$	659
Foreign		55		40			1
State		1		1			1
Total Current		2,145		2,075			661
Deferred - net		370		(193	)		(829	)
Provision for income taxes	$	2,515	$	1,882		$	(168	)

The effective tax rate differs from the applicable U.S. statutory federal income tax rate as follows:

	Year Ended
	December 31,
	2017			2016			2015
U.S. statutory federal taxes at statutory rate		34.00	%		34.00	%		34.00	%
State taxes - net of federal benefit		0.01			0.01			0.01
Research and development benefit		(1.72	)		(2.59	)		(4.08	)
Permanent items and other		0.94			2.55			0.55
Change in valuation allowance		1.78			1.12			(34.80	)
Tax rate change		5.06			—			—
Effective tax rate		40.07	%		35.09	%	(4.32)%

The components of net deferred tax assets and liabilities are as follows:

	Year Ended
	December 31,
	2017			2016			2015
Deferred tax assets:
Net operating loss carryforwards	$	85		$	71		$	71
Research and other credits		309			211			151
Accruals		243			464			192
Intangibles		323			574			623
Other		140			97			50
Total deferred tax assets		1,100			1,417			1,087
Deferred tax liabilities:
Property and equipment - net		(54	)		(113	)		(36	)
Total deferred tax liabilities		(54	)		(113	)		(36	)
Valuation allowance		(394	)		(282	)		(222	)
Deferred tax assets - net	$	652		$	1,022		$	829

In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of its deferred tax assets will be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during periods in which temporary differences become deductible or includable in taxable income. Management considers projected future taxable income and tax planning strategies in making this assessment. Based on the level of currentperiod taxable income and its expected recurring profitability, Management believes it is more likely than not the Company will realize benefits of deductible differences andthus has not recorded a full valuation allowance.

Tax reform H.R.1, originally known as the Tax Cuts and Jobs Act (“Act”), was enacted on December 22, 2017. The Act contains several key provisions that may have significant financial statement effects including the remeasurement of deferred taxes and the recognition of liabilities for taxes on mandatory repatriation and certain other foreign income. The Act reduces the corporate tax rate to 21%, effective January 1, 2018. ASC 740 requires companies to recognize the effect of tax law changes in the period of enactment, the effects must be recognized by companies’ December 2017 financial statements, even though the effective date for most provisions is January 1, 2018. 

Subsequent to the enactment of the Act, the Securities and Exchange Commission issued Staff Accounting Bulletin No. 118 ("SAB 118"). SAB 118 addresses the application of ASC 740 in situations when a registrant does not have the necessary information available, prepared, or analyzed in reasonable detail to complete the accounting for certain income tax effects of the Act and permits the recording of provisional amounts relating to the impact of the Act during a measurement period which is not to extend beyond one year from the Act enactment date.

The Company has reflected the impact of the Act in its financial statements as the law was enacted before the end of the 2017 year. The Company estimated that the reduction in the Corporate tax rate to 21% reduced net deferred tax assets by $0.3 million from $1.0 million to $0.7 million.The Company has estimated the liabilities for taxes on mandatory repatriation and certain other foreign income. The liabilities for taxes on mandatory repatriation of foreign income and taxes on other foreign income from its foreign subsidiaries is approximately $35,000 of which $34,000 can be offset with a foreign tax credit.

As of December 31, 2017 and 2016, the Company had net operating loss carryforwards of $1.2 million and $1.2 million, respectively, for state income tax purposes. These net operating loss carryforwards will begin to expire in 2032 if unused. As of December 31, 2017 and 2016, the Company also had credit carryforwards of $0.5 million and $0.4 million, respectively, for state income tax purposes. These credits carryforwards have no expiration if unused. As of December 31, 2017 and 2016, the Company did not have net operating loss carryforwards or other credits for federal income tax purposes. Current tax laws impose substantial restrictions on the utilization of net operating losses and credit carryforwards in the event of an "ownership change", as defined by the Internal Revenue Code (IRC). If there should be anownership change, the Company's ability to utilize its carryforwards could be limited.  

As of December 31, 2017 and 2016, the Company had unrecognized tax benefits of $0.2 million and $0.2 million, respectively, due to research and development credits. The reversal of the uncertain tax benefits would impact the Company’s effective tax rate.

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Selected Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Financial Data (Unaudited)

11. Selected Quarterly Financial Data (Unaudited)

The following table summarizes the Company’s unaudited consolidated statements of operations by quarter for the year ended December 31, 2017 and 2016. In the opinion of management, the accompanying unaudited consolidated statements of operations reflect all adjustments, which only include normal recurring adjustments, necessary to present fairly the Company’s results of operations in accordance with GAAP and are not necessarily indicative of the results to be expected for the full fiscal year or for any other future annual or interim periods.

	Three Months Ended
	Dec 31, 2017			Sept 30, 2017			June 30, 2017			March 31, 2017			Dec 31, 2016			Sept 30, 2016			June 30, 2016		March 31, 2016
Revenue	$	7,761		$	8,112		$	8,039		$	7,230		$	5,888		$	7,628		$	7,396	$	6,244
Cost of revenue		3,473			3,427			3,369			2,952			2,899			3,388			3,683		2,765
Gross profit		4,288			4,685			4,670			4,278			2,989			4,240			3,713		3,479
Operating expenses
Research and development		1,565			1,156			1,197			1,465			1,004			1,180			1,101		1,095
Selling, general and administrative		2,068			1,541			1,357			1,227			1,117			1,099			1,417		1,045
Total operating expenses		3,633			2,697			2,554			2,692			2,121			2,279			2,518		2,140
Income from operations		655			1,988			2,116			1,586			868			1,961			1,195		1,339
Other income (expense)		(4	)		(59	)		(2	)		(8	)		(10	)		(1	)		3		8
Income before income taxes		651			1,929			2,114			1,578			858			1,960			1,198		1,347
Income taxes		591			646			739			539			419			630			390		443
Net income	$	60		$	1,283		$	1,375		$	1,039		$	439		$	1,330		$	808	$	904
Net income per share allocable to common    stockholders:
Basic	$	—		$	0.09		$	0.09		$	0.07		$	0.03		$	0.09		$	0.06	$	0.06
Diluted	$	—		$	0.08		$	0.09		$	0.07		$	0.03		$	0.09		$	0.05	$	0.06

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Organization and Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2017

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Organization

Organization

Techpoint, Inc. and its wholly-owned subsidiaries (the “Company”) was originally incorporated in California in April 2012 and reincorporated into Delaware in July 2017. The Company is a fabless semiconductor company that designs, markets and sells mixed-signal integrated circuits for multiple video applications in the security surveillance and automotive markets. The Company is headquartered in San Jose, California.

Initial Public Offering

Initial Public Offering

On September 29, 2017, the Company completed its initial public offering (“IPO”) of Japanese depositary shares (“JDS”). In connection with the IPO, the Company sold 1,520,000 JDSs, represented by 1,520,000 shares of our common stock at a price to the public of $5.85 per share and received net proceeds of $8.1 million, after deducting underwriting discounts and commissions of $0.7 million. Additionally, offering costs incurred by the Company totaled $3.0 million. Prior to the closing of the Company’s IPO, all outstanding shares of its preferred stock converted to common stock on a one-to-one basis.

On October 25, 2017, the managing underwriter of our IPO elected to purchase an additional 228,000 shares of JDSs, represented by 228,000 shares of common stock, pursuant to the underwriters’ over-allotment option. We subsequently completed the sale at the IPO price of $5.85 per share and received net proceeds of $1.2 million, after deducting underwriting discounts and commissions of $0.1 million.

Basis of Consolidation and Significant Accounting Policies

Basis of Consolidation and Significant Accounting Policies

The accompanying consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, and have been prepared in conformity with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”). All intercompany balances and transactions have been eliminated. The functional currency of each of the Company’s subsidiaries is the U.S. dollar. Foreign currency gains or losses are recorded as other income (expense) in the Consolidated Statements of Operations.

Use of Management's Estimates

Use of Management’s Estimates

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates, judgments and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts ofrevenue and expenses during the reporting period. Significant estimates included in the consolidated financial statements include inventory valuation, valuation allowance for recorded deferred tax assets, and stock-based compensation. These estimates are based upon information available as of the date of the consolidated financial statements. Actual results could differ materially from those estimates.

Concentration of Customer and Credit Risk

Concentration of Customer and Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of cash and cash equivalents and trade receivables. Risks associated with cash and cash equivalents are mitigated by banking with creditworthy institutions. The Company generally requires advance payments from customers. The Company also performs credit evaluations of its customers and provides credit to certain customers in the normal course of business. The Company has not incurred bad debt write-offs during any of the periods presented.

For the year ended December 31, 2017, 2016 and 2015, one customer, a distributor, accounted for 74%, 85% and 82% of revenue, respectively. Additionally, for the year ended December 31, 2017, 2016 and 2015, one of our end-customers accounted for 59%, 62% and 78% of revenue, respectively, which primarily occurred through this distributor. No other customers accounted for 10% or greater of our revenue in the year ended December 31, 2017, 2016 or 2015. Additionally, no other end-customer accounted for 10% or greater of our revenue for the year ended December 31, 2017. One other end-customer accounted for 10% or greater of our revenue for the year ended December 31, 2016. No other end-customer accounted for 10% or greater of our revenue for the year ended December 31, 2015.

Concentration of Supplier Risk

Concentration of Supplier Risk

The Company is a fabless producer of semiconductors and is dependent on three subcontractors for substantially all of its production requirements. The failure of either subcontractor to fulfill the production requirements of the Company on a timely basis would adversely impact future results. Although there are other subcontractors that are capable of providing similar services, an unexpected change in either subcontractor would cause delays in the Company’s products and potentially result in a significant loss of revenue.

Cash and Cash Equivalents

Cash and Cash Equivalents

The Company considers all highly liquid financial instruments purchased with an original maturity of three months or less at the date of purchase to be cash equivalents. Cash and cash equivalents consist of cash on deposit with banks and money market funds, the fair value of which approximates cost.

Fair Value of Financial Instruments

Fair Value of Financial Instruments

The Company estimates certain financial assets and liabilities at fair value based on available market information and valuation methodologies considered to be appropriate. However, considerable judgment is required in interpreting market data to develop the estimate of fair value. The use of different market assumptions and/or estimation methodologies could have a material effect on estimated fair value amounts. See Note 3: “Fair Value Measurements” of these Notes to Consolidated Financial Statements for a further discussion on fair value of financial instruments.

Inventories

Inventories

Inventories are stated at the lower of cost or market. Upon the adoption of ASU 2015-11 in the first quarter of fiscal 2017, inventories are stated at the lower of cost or net realizable value. Cost is computed using the standard cost, which approximates actual cost determined on a first-in, first-out basis. Inventories include work in process and finished good parts that may be specialized in nature and subject to rapid obsolescence. Because of the cyclical nature of the market, inventory levels, obsolescence of technology, and product life cycles, the Company generally writes down inventories to net realizable value based on forecasted product demand. Inventory write downs for excess quantity and technological obsolescence are charged to cost of sales when evidence indicates clearly that a loss has been sustained. The amount written down for the years ended December 31, 2017 and 2016 was $0.4 million and $0.8 million, respectively.

Property and Equipment

Property and Equipment

Property and equipment, are stated at cost less accumulated depreciation, and are depreciated using the straight-line method over the estimated useful lives of the assets. The estimated useful lives range from two to three years for computer equipment, furniture and leasehold improvements.

The Company evaluates the recoverability of property, plant and equipment in accordance with Accounting Standards Codification (“ASC”) No. 360, Accounting for the Property, Plant, and Equipment. (“ASC 360”). The Company performs periodic reviews to determine whether facts and circumstances exist that would indicate that the carrying amounts of property and equipment exceeds their fair values. If facts and circumstances indicate that the carrying amount of property and equipment might not be fully recoverable, projected undiscounted net cash flows associated with the related asset or group of assets over their estimated remaining useful lives are compared against their respective carrying amounts. In the event that the projected undiscounted cash flows are not sufficient to recover the carrying value of the assets, the assets are written down to their estimated fair values based on their expected discounted future cash flows attributable to those assets.

Product Warranty

Product Warranty

The Company generally warrants its products for one year from the date of shipment against defects. The Company accrues for anticipated warranty costs upon shipment based on the number of shipped units, historical analysis of the volume of product returned under the warranty program, management’s judgment regarding anticipated rates of warranty claims and associated repair costs.

Employee Benefit Plan

Employee Benefit Plan

The Company sponsors a 401(k) tax-deferred savings plan for all employees in the United States who meet certain eligibility requirements. Participants may contribute up to the amount allowable as a deduction for federal income tax purposes.The 401(k) Plan provides for a discretionary employer-matching contribution. The Company has not made any matching contributions to the 401(k) Plan to date.

Revenue Recognition

Revenue Recognition

Revenue from the sale of the Company’s products is recognized when all of the following criteria are met: (1) persuasive evidence of an arrangement exists; (2) the product has been delivered; (3) the price is fixed or determinable; and (4) collection is reasonably assured.

The Company principally sells its products to distributors who, in turn, sell to ODMs, contract manufacturers and design houses. The Company generally recognizes revenue when it ships its product to the distributors. The Company’s delivery terms are primarily free on board shipping point, at which time title and all risks of ownership are transferred to the distributor. As of December 31, 2017 and 2016, substantially all of the Company’s customers paid in advance of shipment, and no stock rotation, price protection or return rights were offered.

Research and Development Costs

Research and Development Costs

Research and development costs are expensed as incurred. Such costs consist primarily of expenditures for labor, benefits and mask sets.

Share-Based Compensation

Stock-Based Compensation

The Company measures the cost of employee services received in exchange for equity incentive awards, including stock options, based on the grant date fair value of the award. The fair value is estimated using the Black-Scholes option pricing model which requires us to estimate certain key assumptions including, stock price, future stock price volatility, expected term of the options, risk free rates, and dividend yields. The Company adjusts compensation expense for forfeiture of equity incentive awards as they occur. The resulting cost is recognized over the period that the employee is required to provide services for the award, which is usually the vesting period. The Company recognizes compensation expense over the vesting period using the straight-line method and classifies these amounts based on the department to which the related employee is assigned. See Note 11 “Stock-Based Compensation” for a description of the Company’s stock-based employee compensation plans and the assumptions the Company uses to calculate the fair value of stock-based employee compensation.

Stock-based awards issued to non-employees are recognized as expense over the requisite service period at their then current fair value. The Company determines the fair value of its stock-based awards issued to non-employees utilizing the Black-Scholes option pricing model. Stock-based compensation expense for stock-based awards issued to nonemployees is recognized over the requisite service period or when it is probable that the performance condition will be satisfied. The fair value of stock-based awards to non-employees is measured at each reporting period until a measurement date is reached.

Income Taxes

Income Taxes

The Company accounts for income taxes using an asset and liability approach as prescribed in ASC 740-10, Income Taxes (“ASC 740-10”). The Company records the amount of taxes payable or refundable for the current and prior years and deferred tax assets and liabilities for the future tax consequences of events that have been recognized in the Company’s financial statements or tax returns. A valuation allowance is recorded to reduce deferred tax assets when it is more likely than not that a tax benefit will not be realized.

ASC 740-10 prescribes a recognition threshold and measurement framework for the financial statement reporting and disclosure of an income tax position taken or expected to be taken on a tax return. Under ASC 740-10, a tax position is recognized in the financial statements when it is more likely than not, based on the technical merits, that the position will be sustained upon examination, including resolution of any related appeals or litigation processes. A tax position that meets the recognition threshold is then measured to determine the largest amount of the benefit that has a greater than 50% likelihood of being realized upon settlement. The Company recognizes interest and penalties related to unrecognized tax benefits as a component of the provision for income taxes in the Consolidated Statements of Income.

The calculation of tax liabilities involves significant judgment in estimating the impact of uncertainties in the application of complex tax laws across multiple tax jurisdictions. Although ASC 740-10 providesclarification on the accounting for uncertainty in income taxes recognized in the financial statements, the recognition threshold and measurement framework will continue to require significant judgment by management. Resolution of these uncertainties in a manner inconsistent with the Company’s expectations could have a material impact on the Company’s results of operations.

Recently Adopted Accounting Pronouncements

Recently Adopted Accounting Pronouncements

Stock Compensation Guidance. In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-09 (ASC Topic 718), Stock Compensation — Improvements to Employee Share-Based Payment Accounting, which simplifies the accounting for share based payment transactions, including the income tax consequences, forfeitures, and statutory tax withholding requirements, as well as classification on the statement of cash flows. ASU 2016-09 is effective for the Company beginning the first quarter of fiscal 2017. The Company adopted the guidance in the first quarter of fiscal 2017, which resulted in no material impacts on its financial position, results of operations, or cash flows, and expects the primary impact of this standard to be the income tax effects of awards recognized in the income statement when the awards are vested or settled. The potential tax impacts remain unknown until the award vest or settlement date.

Inventory Measurement Guidance. In July 2015, the FASB issued ASU 2015-11, Simplifying the Measurement of Inventory, amending ASC 330. Upon adoption, this topic supersedes the existing guidance under ASC 330 and aims to simplify the subsequent measurement of inventory. Currently, inventory can be measured at the lower of cost or market, which could result in several potential outcomes, as market could be replacement cost, net realizable value or net realizable value less an approximately normal profit margin. The major amendments would be as follows: 1. Inventory should be measured at the lower of cost or net realizable value. 2. Net realizable value is the estimated selling price in the ordinary course of business less reasonably predictable costs of completion, disposal and transportation. 3. The amendment does not apply to inventory measured under LIFO or the retail inventory method. 4. The amendment does apply to all other inventory, which includes inventory measured via FIFO or average cost. ASU 2015-11 became effective for periods beginning after December 15, 2016 (including interim reporting periods within those fiscal years), or the first quarter of fiscal 2017. The Company adopted this guidance in the first quarter of fiscal 2017, which resulted in no material impact on its consolidated financial statements.

Recently Issued Accounting Pronouncements Not Yet Adopted

Recently Issued Accounting Pronouncements Not Yet Adopted

Lease Guidance. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) (“ASU 2016-02”). ASU 2016-02 requires lessees to recognize all leases with terms in excess of one year on their balance sheet as a right-of-use asset and a lease liability at the commencement date. The new standard also simplifies the accounting for sale and leaseback transactions. The amendments in this update are effective for annual periods beginning after December 15, 2018, and interim periods therein and must be adopted using a modified retrospective method for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. Early adoption is permitted. The Company does not expect that the adoption of this amendment will have a material impact on its consolidated financial statements.

Revenue Recognition Guidance. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, creating ASC Topic 606. Upon adoption, this topic supersedes the existing guidance under ASC 605 and aims to simplify the number of requirements to follow for revenue recognition and make revenue recognition more comparable across various entities, industries, jurisdictions and capital markets. There are 5 core principles: 1. Identify the contract(s) with a customer. 2. Identify the performance obligations in the contract. 3. Determine the transaction price. 4. Allocate the transaction price to performance obligations in the contract. 5. Recognize revenue when (or as) the entity satisfies a performance obligation. Additional considerations under this update include: accounting for costs to obtain or fulfill a contract with a customer and additional quantitative and qualitative disclosures. ASU 2014-09 will become effective for periods beginning after December 15, 2017 (including interim reporting periods within those periods), or the first quarter 2018, and allows for retrospective or modified retrospective application.

The Company has substantially completed its evaluation of the effect of the standard on the Company’s financial statements. The Company’s evaluation focused on the review of significant customer contracts as well as business processes, systems and controls required to support appropriate recognition and disclosure under the new standard. Based on the Company’s evaluation and as the Company does not offer stock rotation, price protection or return rights for its product sales, the Company has not identified any expected material impact on the timing and measurement of revenues from the review of its existing customer contracts. The Company will evaluate new contracts with customers as they are obtained and will adopt the standard using the modified retrospective approach in the first quarter of 2018.

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Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2017

Balance Sheet Related Disclosures [Abstract]

Components of Inventory

Inventory consists of the following (in thousands):

	December 31,		December 31,
	2017		2016
Finished goods	$	1,633	$	1,741
Work in process		1,214		842
Total inventory	$	2,847	$	2,583

Components of Property and Equipment - Net

Property and equipment - net consists of the following (in thousands):

	December 31,			December 31,
	2017			2016
Computer equipment	$	687		$	605
Leasehold improvements		59			22
Furniture		30			37
Total property and equipment		776			664
Less: accumulated depreciation		(451	)		(263	)
Total property and equipment - net	$	325		$	401

Components of Accrued Liabilities

Accured liabilities consist of the following (in thousands):

	December 31,		December 31,
	2017		2016
Payroll-related expenses	$	291	$	144
Engineering services		131		110
Accrued warranty		73		83
Taxes payable		37		27
Professional fees		23		95
Other		18		22
Total accrued liabilities	$	573	$	481

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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Schedule of Financial Assets Measured at Fair Value on Recurring Basis

Financial assets measured at fair value on a recurring basis were as follows:

	Fair Value Measurement at Reporting Date Using
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
As of December 31, 2017
Assets:
Money market funds	$	6,951	$	—	$	—	$	6,951
As of December 31, 2016
Assets:
Money market funds	$	4,932	$	—	$	—	$	4,932

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Segment Information (Tables)

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Schedule of Product Revenue from Customer by Geographic Region

Product revenue from customers is designated based on the geographic region to which the product is delivered. Revenue by geographic region was as follows (in thousands):

	Year Ended
	December 31,
	2017		2016		2015
China	$	26,453	$	23,815	$	17,637
South Korea		2,857		1,600		1,470
Taiwan		821		1,214		1,128
Other		1,011		527		10
Total revenue	$	31,142	$	27,156	$	20,245

Schedule of Revenue by Principal Products Lines

Revenue by principal product lines were as follows (in thousands):

	Year Ended
	December 31,
	2017		2016		2015
Security surveillance	$	28,143	$	26,531	$	20,237
Automotive		2,999		625		8
Total revenue	$	31,142	$	27,156	$	20,245

Schedule of Net Long-lived Assets by Geographic Region

Long-lived assets are attributed to the geographic region where they are located. Net long-lived assets by geographic region were as follows (in thousands):

	December 31,		December 31,
	2017		2016
Taiwan	$	205	$	255
United States		92		83
Japan		16		39
China		9		19
South Korea		3		5
Total property and equipment - net	$	325	$	401

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Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments And Contingencies Disclosure [Abstract]

Schedule of Aggregate Future Minimum Lease Payments Under Operating Leases

As of December 31, 2017, the aggregate future minimum lease payments under operating leases consist of the following (in thousands):

Year Ending December 31,	Amount
2018	$	469
2019		520
2020		60
Total	$	1,049

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Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2017

Equity [Abstract]

Schedule of Preferred Stock Outstanding

Preferred stock outstanding as of December 31, 2016 consisted of the following (in thousands, except share and per share data):

	December 31, 2016
Series	Period Issued	Price per Share		Shares Authorized		Shares Issued and Outstanding		Aggregate Liquidation Value		Carrying Value
Seed	July 2012	$	0.25		4,660,000		4,660,000	$	1,165	$	1,156
A	November 2012 to June 2013	$	1.00		4,500,000		4,500,000		4,500		4,477
B	June 2014 to October 2014	$	2.00		2,500,000		1,582,500		3,165		3,161
Total					11,660,000		10,742,500	$	8,830	$	8,794

Schedule of Number of Shares of Common Stock Reserved For Future Issuances

The Company has reserved the following number of shares of common stock for future issuances:

	December 31,
	2017
Outstanding stock awards		1,593,568
Shares available for future issuance under the 2017    Stock Incentive Plan		3,933,649
Total common stock reserved for future issuances		5,527,217

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Stock Award Plan (Tables)

12 Months Ended

Dec. 31, 2017

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Stock Option Activity

The Company’s stock option activity is summarized as follows:

	Options Available for Grant			Options Issued and Outstanding			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value (in thousands)
As of December 31, 2016		2,017,983			1,545,667		$	0.81		8.2	$	3,216
Authorized		2,500,000			—
Granted		(583,500	)		583,500		$	2.99
Exercised (1)		—			(506,433	)	$	0.34
Canceled		49,166			(49,166	)	$	0.41
As of December 31, 2017		3,983,649			1,573,568		$	1.78		8.4	$	24,556
Options vested and expected to vest as of    December 31, 2017					1,573,568		$	1.78		8.4	$	24,556
Options vested and exercisable as of    December 31, 2017					357,920		$	1.42		7.9	$	5,714

(1) Includes vesting of early-exercised options.

Summary of Stock Options Outstanding and Exercisable by Exercise Price

The stock options outstanding and exercisable by exercise price at December 31, 2017, are as follows:

		Options Outstanding						Options Vested and Exercisable
Exercise Price		Number Outstanding		Weighted- Average Remaining Contractual Life (Years)		Weighted- Average Exercise Price		Number Vested and Exercisable		Weighted- Average Exercise Price
$	0.10		14,167		5.6	$	0.10		—	$	—
$	0.16		128,750		6.1	$	0.16		72,333	$	0.16
$	0.37		317,584		7.4	$	0.37		64,500	$	0.37
$	0.97		263,833		8.2	$	0.97		68,828	$	0.97
$	2.51		269,401		8.7	$	2.51		95,626	$	2.51
$	2.89		52,000		9.2	$	2.89		—	$	—
$	2.93		372,833		9.4	$	2.93		49,133	$	2.93
$	3.18		155,000		9.6	$	3.18		7,500	$	3.18
			1,573,568		8.4	$	1.78		357,920	$	1.42

Summary of Restricted Stock Unit Activity

The Company’s restricted stock unit activity is summarized as follows:

	Number of Shares			Weighted-Average Grant Date Fair Value
As of December 31, 2016		30,000		$	2.89
Granted		20,000		$	19.42
Released		(30,000	)	$	2.89
Canceled		—
As of December 31, 2017		20,000		$	19.42

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Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2017

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Distribution of Stock-Based Compensation Expense

The following table summarizes the distribution of stock-based compensation expense (in thousands):

	Year Ended
	December 31,
	2017		2016		2015
Cost of revenue	$	31	$	15	$	7
Research and development		273		102		73
Selling, general and administrative		1,144		322		84
Total	$	1,448	$	439	$	164

Employee Stock Awards

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Weighted-Average Assumptions Used in Black-Scholes Option-Pricing Model to Determine Fair Value of Stock Options

The following table summarizes the weighted-average assumptions used in the Black-Scholes option-pricing model to determine fair value of stock awards:

	Year Ended
	December 31,
	2017			2016			2015
Expected term (in years)		6.28			6.19			6.30
Risk-free interest rate		2.01	%		1.38	%		1.67	%
Expected volatility		53	%		51	%		46	%
Dividend rate		0	%		0	%		0	%
Fair value of common stock	$	5.14		$	2.35		$	0.86

Non-Employee Stock Awards

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Weighted-Average Assumptions Used in Black-Scholes Option-Pricing Model to Determine Fair Value of Stock Options

The following table summarizes the weighted-average assumptions used in the Black-Scholes option-pricing model to determine fair value of stock awards:

	Year Ended
	December 31,
	2017			2016			2015
Expected term (in years)		10.00			10.00			10.00
Risk-free interest rate		2.30	%		2.02	%		2.09	%
Expected volatility		53	%		53	%		50	%
Dividend rate		0	%		0	%		0	%
Fair value of common stock	$	14.40		$	2.68		$	0.84

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Net Income Per Share (Tables)

12 Months Ended

Dec. 31, 2017

Earnings Per Share [Abstract]

Computation of Basic and Diluted Net Income Per Share

The following table presents the calculation of basic and diluted net income per share (amounts in thousands, except per share data):

	Year Ended
	December 31,
	2017		2016		2015
Numerator:
Basic:
Net income	$	3,757	$	3,481	$	4,057
Net income allocable to preferred    stockholders		1,936		2,627		3,170
Net income allocable to common stockholders		1,821		854		887
Diluted:
Net income		3,757		3,481		4,057
Net income allocable to preferred    stockholders		1,823		2,477		3,002
Net income allocable to common    stockholders		1,934		1,004		1,055
Denominator:
Basic shares:
Weighted-average shares outstanding in    computing basic net income per share    allocable to common stockholders		7,145,641		3,493,946		3,007,311
Diluted shares:
Effect of potentially dilutive securities:
Stock options (1)		910,688		864,441		766,835
Weighted-average shares used in computing    diluted net income per common share    allocable to common stockholders		8,056,329		4,358,387		3,774,146
Net income per common share:
Basic	$	0.25	$	0.24	$	0.30
Diluted	$	0.24	$	0.23	$	0.28

(1) Including early-exercised options.

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Schedule of Components of Income Before Income Taxes

The components of income before income taxes are as follows (in thousands):

	Year Ended
	December 31,
	2017		2016		2015
Domestic	$	6,141	$	5,311	$	3,888
Foreign		131		52		1
Income before income taxes	$	6,272	$	5,363	$	3,889

Schedule of Components of Provision For Income Taxes

The components of the provision for income taxes are as follows (in thousands):

	Year Ended
	December 31,
	2017		2016			2015
Current:
Federal	$	2,089	$	2,034		$	659
Foreign		55		40			1
State		1		1			1
Total Current		2,145		2,075			661
Deferred - net		370		(193	)		(829	)
Provision for income taxes	$	2,515	$	1,882		$	(168	)

Schedule of Effective Tax Rate Differs from Applicable U.S Statutory Federal Income Tax Rates

The effective tax rate differs from the applicable U.S. statutory federal income tax rate as follows:

	Year Ended
	December 31,
	2017			2016			2015
U.S. statutory federal taxes at statutory rate		34.00	%		34.00	%		34.00	%
State taxes - net of federal benefit		0.01			0.01			0.01
Research and development benefit		(1.72	)		(2.59	)		(4.08	)
Permanent items and other		0.94			2.55			0.55
Change in valuation allowance		1.78			1.12			(34.80	)
Tax rate change		5.06			—			—
Effective tax rate		40.07	%		35.09	%	(4.32)%

Schedule of Components of Net Deferred Tax Assets and Liabilities

The components of net deferred tax assets and liabilities are as follows:

	Year Ended
	December 31,
	2017			2016			2015
Deferred tax assets:
Net operating loss carryforwards	$	85		$	71		$	71
Research and other credits		309			211			151
Accruals		243			464			192
Intangibles		323			574			623
Other		140			97			50
Total deferred tax assets		1,100			1,417			1,087
Deferred tax liabilities:
Property and equipment - net		(54	)		(113	)		(36	)
Total deferred tax liabilities		(54	)		(113	)		(36	)
Valuation allowance		(394	)		(282	)		(222	)
Deferred tax assets - net	$	652		$	1,022		$	829

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Selected Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Summary of Unaudited Consolidated Statements of Operations

The following table summarizes the Company’s unaudited consolidated statements of operations by quarter for the year ended December 31, 2017 and 2016. In the opinion of management, the accompanying unaudited consolidated statements of operations reflect all adjustments, which only include normal recurring adjustments, necessary to present fairly the Company’s results of operations in accordance with GAAP and are not necessarily indicative of the results to be expected for the full fiscal year or for any other future annual or interim periods.

	Three Months Ended
	Dec 31, 2017			Sept 30, 2017			June 30, 2017			March 31, 2017			Dec 31, 2016			Sept 30, 2016			June 30, 2016		March 31, 2016
Revenue	$	7,761		$	8,112		$	8,039		$	7,230		$	5,888		$	7,628		$	7,396	$	6,244
Cost of revenue		3,473			3,427			3,369			2,952			2,899			3,388			3,683		2,765
Gross profit		4,288			4,685			4,670			4,278			2,989			4,240			3,713		3,479
Operating expenses
Research and development		1,565			1,156			1,197			1,465			1,004			1,180			1,101		1,095
Selling, general and administrative		2,068			1,541			1,357			1,227			1,117			1,099			1,417		1,045
Total operating expenses		3,633			2,697			2,554			2,692			2,121			2,279			2,518		2,140
Income from operations		655			1,988			2,116			1,586			868			1,961			1,195		1,339
Other income (expense)		(4	)		(59	)		(2	)		(8	)		(10	)		(1	)		3		8
Income before income taxes		651			1,929			2,114			1,578			858			1,960			1,198		1,347
Income taxes		591			646			739			539			419			630			390		443
Net income	$	60		$	1,283		$	1,375		$	1,039		$	439		$	1,330		$	808	$	904
Net income per share allocable to common    stockholders:
Basic	$	—		$	0.09		$	0.09		$	0.07		$	0.03		$	0.09		$	0.06	$	0.06
Diluted	$	—		$	0.08		$	0.09		$	0.07		$	0.03		$	0.09		$	0.05	$	0.06

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Organization and Summary of Significant Accounting Policies - Additional Information (Details) $ / shares in Units, $ in Thousands			12 Months Ended
	Oct. 25, 2017 USD ($) $ / shares shares	Sep. 29, 2017 USD ($) $ / shares shares	Dec. 31, 2017 USD ($) Customer Subcontractor	Dec. 31, 2016 USD ($) Customer	Dec. 31, 2015 Customer
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Net proceeds from initial public offering			$ 9,339
Number of dependent subcontractors for production requirements | Subcontractor			3
Inventories written down			$ 400	$ 800
Standard product warranty period			1 year
Minimum
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Tax position recognition of benefit percentage, realized upon settlement			50.00%
Minimum | Computer Equipment
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Estimated useful lives of property and equipment			2 years
Minimum | Furniture
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Estimated useful lives of property and equipment			2 years
Minimum | Leasehold Improvements
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Estimated useful lives of property and equipment			2 years
Maximum | Computer Equipment
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Estimated useful lives of property and equipment			3 years
Maximum | Furniture
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Estimated useful lives of property and equipment			3 years
Maximum | Leasehold Improvements
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Estimated useful lives of property and equipment			3 years
Customer and Distributor | Sales Revenue, Net | Customer Concentration Risk
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Concentration risk, percentage			74.00%	85.00%	82.00%
Number of major customers comprising more than ten percent of revenues | Customer			1	1	1
End Customers | Sales Revenue, Net | Customer Concentration Risk
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Concentration risk, percentage			59.00%	62.00%	78.00%
Number of major customers comprising more than ten percent of revenues | Customer			1	1	1
Initial Public Offering
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Initial public offering, price per share | $ / shares		$ 5.85
Net proceeds from initial public offering		$ 8,100
Underwriting discounts and commissions		700
Offering costs		$ 3,000
Preferred stock, conversion basis			one-to-one basis
Japanese Depositary Shares | Initial Public Offering
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Initial public offering, shares of common stock sold | shares		1,520,000
Initial public offering, price per share | $ / shares	$ 5.85
Net proceeds from initial public offering	$ 1,200
Underwriting discounts and commissions	$ 100
Additional Shares of Common Stock Issued | shares	228,000
California
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Company original incorporation date of incorporation			2012-04
Company Incorporation place			California
Delaware
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Company Incorporation place			Delaware
Company reincorporation incorporation date of incorporation			2017-07

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Balance Sheet Components - Components of Inventory (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Balance Sheet Related Disclosures [Abstract]
Finished goods	$ 1,633	$ 1,741
Work in process	1,214	842
Total inventory	$ 2,847	$ 2,583

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Balance Sheet Components - Components of Property and Equipment - Net (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 776	$ 664
Less: accumulated depreciation	(451)	(263)
Total property and equipment - net	325	401
Computer Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	687	605
Furniture
Property Plant And Equipment [Line Items]
Property and equipment, gross	30	37
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 59	$ 22

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Balance Sheet Components - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Balance Sheet Related Disclosures [Abstract]
Depreciation expense	$ 200	$ 200
Payments received in advance of shipments	$ 6	$ 745

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Balance Sheet Components - Components of Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Balance Sheet Related Disclosures [Abstract]
Payroll-related expenses	$ 291	$ 144
Engineering services	131	110
Accrued warranty	73	83
Taxes payable	37	27
Professional fees	23	95
Other	18	22
Total accrued liabilities	$ 573	$ 481

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Fair Value Measurements - Schedule of Financial Assets Measured at Fair Value on Recurring Basis (Details) - Fair Value Measurements Recurring - Money Market Funds - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Assets:
Money market funds	$ 6,951	$ 4,932
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Money market funds	$ 6,951	$ 4,932

XML

Segment Information - Additional Information (Details)	12 Months Ended
	Dec. 31, 2017 Segment
Segment Reporting [Abstract]
Number of reportable segments	1
Number of operating segments	1

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Segment Information - Schedule of Product Revenue from Customers by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	$ 7,761	$ 8,112	$ 8,039	$ 7,230	$ 5,888	$ 7,628	$ 7,396	$ 6,244	$ 31,142	$ 27,156	$ 20,245
China
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue									26,453	23,815	17,637
South Korea
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue									2,857	1,600	1,470
Taiwan
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue									821	1,214	1,128
Other
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue									$ 1,011	$ 527	$ 10

XML

Segment Information - Schedule of Revenue by Principal Product Lines (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Entity Wide Information Revenue From External Customer [Line Items]
Revenue	$ 7,761	$ 8,112	$ 8,039	$ 7,230	$ 5,888	$ 7,628	$ 7,396	$ 6,244	$ 31,142	$ 27,156	$ 20,245
Security Surveillance
Entity Wide Information Revenue From External Customer [Line Items]
Revenue									28,143	26,531	20,237
Automotive
Entity Wide Information Revenue From External Customer [Line Items]
Revenue									$ 2,999	$ 625	$ 8

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Segment Information - Schedule of Net Long-Lived Assets by Geographic Region (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Revenues From External Customers And Long Lived Assets [Line Items]
Property and equipment - net	$ 325	$ 401
Taiwan
Revenues From External Customers And Long Lived Assets [Line Items]
Property and equipment - net	205	255
United States
Revenues From External Customers And Long Lived Assets [Line Items]
Property and equipment - net	92	83
Japan
Revenues From External Customers And Long Lived Assets [Line Items]
Property and equipment - net	16	39
China
Revenues From External Customers And Long Lived Assets [Line Items]
Property and equipment - net	9	19
South Korea
Revenues From External Customers And Long Lived Assets [Line Items]
Property and equipment - net	$ 3	$ 5

XML

Commitments and Contingencies - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($) Litigation	Dec. 31, 2016 USD ($)
Commitments And Contingencies Disclosure [Abstract]
Non-cancellable operating lease agreements, expiration description	non-cancellable lease agreements expiring through fiscal year 2020.
Rent expense under operating leases	$ 0.5	$ 0.4
Future minimum payments under purchase commitments for year ending December 31, 2018	$ 0.1
Number of litigation | Litigation	0

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Commitments and Contingencies - Schedule of Aggregate Future Minimum Lease Payments Under Operating Leases (Details) $ in Thousands	Dec. 31, 2017 USD ($)
Commitments And Contingencies Disclosure [Abstract]
2018	$ 469
2019	520
2020	60
Total	$ 1,049

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Stockholders' Equity - Schedule of Preferred Stock Outstanding (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) $ / shares shares
Class Of Stock [Line Items]
Preferred Stock, Shares Authorized	11,660,000
Preferred Stock, Shares Issued	10,742,500
Preferred Stock, Shares Outstanding	10,742,500
Preferred Stock, Aggregate Liquidation Value | $	$ 8,830
Preferred Stock, Carrying Value | $	$ 8,794
Series Seed Convertible Preferred Stock
Class Of Stock [Line Items]
Preferred Stock, Period Issued	2012-07
Preferred Stock, Price Per Share | $ / shares	$ 0.25
Preferred Stock, Shares Authorized	4,660,000
Preferred Stock, Shares Issued	4,660,000
Preferred Stock, Shares Outstanding	4,660,000
Preferred Stock, Aggregate Liquidation Value | $	$ 1,165
Preferred Stock, Carrying Value | $	$ 1,156
Series A Convertible Preferred Stock
Class Of Stock [Line Items]
Preferred Stock, Period Issued Start	2012-11
Preferred Stock, Period Issued End	2013-06
Preferred Stock, Price Per Share | $ / shares	$ 1.00
Preferred Stock, Shares Authorized	4,500,000
Preferred Stock, Shares Issued	4,500,000
Preferred Stock, Shares Outstanding	4,500,000
Preferred Stock, Aggregate Liquidation Value | $	$ 4,500
Preferred Stock, Carrying Value | $	$ 4,477
Series B Convertible Preferred Stock
Class Of Stock [Line Items]
Preferred Stock, Period Issued Start	2014-06
Preferred Stock, Period Issued End	2014-10
Preferred Stock, Price Per Share | $ / shares	$ 2.00
Preferred Stock, Shares Authorized	2,500,000
Preferred Stock, Shares Issued	1,582,500
Preferred Stock, Shares Outstanding	1,582,500
Preferred Stock, Aggregate Liquidation Value | $	$ 3,165
Preferred Stock, Carrying Value | $	$ 3,161

XML

Stockholders' Equity - Additional Information (Details) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Class Of Stock [Line Items]
Preferred stock, shares authorized		11,660,000
Preferred stock, shares issued		10,742,500
Preferred stock, shares outstanding		10,742,500
Common stock shares authorized	75,000,000
Common stock par value	$ 0.0001
Common stock shares issued	16,752,171
Common stock shares outstanding	16,752,171
Common stock issued subject to repurchase related to early exercise of options	289,334
Convertible Preferred Stock
Class Of Stock [Line Items]
Preferred stock, conversion basis	one-for-one
Preferred Stock, Par Value
Class Of Stock [Line Items]
Preferred stock, shares authorized	5,000,000
Preferred stock, par value	$ 0.0001

XML

Stockholders' Equity - Schedule of Number of Shares of Common Stock Reserved for Future Issuances (Details)	Dec. 31, 2017 shares
Class Of Stock [Line Items]
Common stock reserved for future issuances	5,527,217
Outstanding Stock Awards
Class Of Stock [Line Items]
Common stock reserved for future issuances	1,593,568
Shares Available for Future Issuance under 2017 Stock Incentive Plan
Class Of Stock [Line Items]
Common stock reserved for future issuances	3,933,649

XML

Stock Award Plan - Additional Information (Details)	1 Months Ended		12 Months Ended
	Sep. 30, 2017 shares	Apr. 30, 2012	Dec. 31, 2017 USD ($) shares	Dec. 31, 2016 USD ($) shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock reserved for future issuances			5,527,217
Number of unvested shares of common stock issued			46,667	302,083
Proceeds from unvested shares of common stock issued | $			$ 46,000	$ 113,000
Number of shares of unvested common stock repurchased			45,666	37,167
Number of shares subject to repurchase			289,334	606,833
Aggregate price of shares held subject to repurchase | $			$ 200,000	$ 200,000
Share-based compensation arrangement by share-based payment award, aggregate intrinsic value of options exercised | $			$ 1,800,000	$ 800,000
Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, options vesting period			5 years
Share-based compensation arrangement by share-based payment award, stock awards conversion ratio			1
2012 Stock Option Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, options vesting term of award			The 2012 Plan provides for the granting of stock-based awards to employees, directors, and consultants under terms and provisions established by the Company’s board of directors. Under the terms of the 2012 Plan, options may be granted at an exercise price not less than fair market value. For employees holding more than 10% of the voting rights of all classes of stock, the exercise prices for incentive and nonstatutory stock options must be at least 110% of the fair market value of the common stock on the grant date, as determined by the Company’s board of directors. The terms of options granted under the 2012 Plan may not exceed ten years.
Share-based compensation arrangement by share-based payment award, additional awards	0
Common stock reserved for future issuances	0
Share-based compensation arrangement by share-based payment award, shares reserved but not issued	1,453,649
2012 Stock Option Plan | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, percentage of voting rights of all classes of stock to be owned by employees to determine stock options exercise price on grant date		10.00%
Share-based compensation arrangement by share-based payment award, exercise prices percentage of fair market of common stock on grant date		110.00%
2012 Stock Option Plan | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, Options exercisable period		10 years
2017 Stock Option Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, options vesting term of award			Options granted generally vest over a five-year period and generally are exercisable up to 10 years.
Common stock reserved for future issuances	3,933,649
Share based compensation arrangement by share based payment award number of shares authorized increment description			The number of shares that have been authorized for issuance under the 2017 Plan will be automatically increased on the first day of each fiscal year beginning on January 1, 2018 and ending on (and including) January 1, 2027, in an amount equal to the lesser of (1) 4% of the outstanding shares of our common stock on the last day of the immediately preceding fiscal year, or (2) another amount determined by the Company’s board of directors.
Automatic increase in number of shares authorized under stock option plan, start date			Jan. 01, 2018
Automatic increase in number of shares authorized under stock option plan, end date			Jan. 01, 2027
Share-based compensation arrangement by share-based payment award, options vesting period	5 years
2017 Stock Option Plan | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, Options exercisable period	10 years
Share-based compensation arrangement by share-based payment award, percentage of annual increase in number of shares authorized of outstanding shares of common stock	4.00%

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Stock Award Plan - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Options Available for Grant, Beginning balance	2,017,983
Options Available for Grant, Authorized	2,500,000
Options Available for Grant, Granted	(583,500)
Options Available for Grant, Canceled	49,166
Options Available for Grant, Ending balance	3,983,649	2,017,983
Options Issued and Outstanding, Beginning balance	1,545,667
Options Issued and Outstanding, Granted	583,500
Options Issued and Outstanding, Exercised	(506,433)
Options Issued and Outstanding, Canceled	(49,166)
Options Issued and Outstanding, Ending balance	1,573,568	1,545,667
Options Issued and Outstanding, Options vested and expected to vest	1,573,568
Options Issued and Outstanding, Options vested and exercisable	357,920
Weighted Average Exercise Price, Beginning balance	$ 0.81
Weighted Average Exercise Price, Granted	2.99
Weighted Average Exercise Price, Exercised	0.34
Weighted Average Exercise Price, Canceled	0.41
Weighted Average Exercise Price, Ending balance	1.78	$ 0.81
Weighted Average Exercise Price, Options vested and expected to vest	1.78
Weighted Average Exercise Price, Options vested and exercisable	$ 1.42
Weighted-Average Remaining Contractual Term	8 years 4 months 24 days	8 years 2 months 12 days
Weighted-Average Remaining Contractual Term, Options vested and expected to vest	8 years 4 months 24 days
Weighted-Average Remaining Contractual Term, Options vested and exercisable	7 years 10 months 24 days
Aggregate Intrinsic Value	$ 24,556	$ 3,216
Aggregate Intrinsic Value, Options vested and expected to vest	24,556
Aggregate Intrinsic Value, Options vested and exercisable	$ 5,714

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Stock Award Plan - Summary of Stock Options Outstanding and Exercisable by Exercise Price (Details) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options Outstanding, Number Outstanding	1,573,568
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	8 years 4 months 24 days
Options Outstanding, Weighted-Average Exercise Price	$ 1.78	$ 0.81
Options Vested and Exercisable, Number Vested and Exercisable	357,920
Options Vested and Exercisable, Weighted-Average Exercise Price	$ 1.42
Exercise Price 0.10
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise Price	$ 0.10
Options Outstanding, Number Outstanding	14,167
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	5 years 7 months 6 days
Options Outstanding, Weighted-Average Exercise Price	$ 0.10
Exercise Price 0.16
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise Price	$ 0.16
Options Outstanding, Number Outstanding	128,750
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	6 years 1 month 6 days
Options Outstanding, Weighted-Average Exercise Price	$ 0.16
Options Vested and Exercisable, Number Vested and Exercisable	72,333
Options Vested and Exercisable, Weighted-Average Exercise Price	$ 0.16
Exercise Price 0.37
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise Price	$ 0.37
Options Outstanding, Number Outstanding	317,584
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	7 years 4 months 24 days
Options Outstanding, Weighted-Average Exercise Price	$ 0.37
Options Vested and Exercisable, Number Vested and Exercisable	64,500
Options Vested and Exercisable, Weighted-Average Exercise Price	$ 0.37
Exercise Price 0.97
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise Price	$ 0.97
Options Outstanding, Number Outstanding	263,833
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	8 years 2 months 12 days
Options Outstanding, Weighted-Average Exercise Price	$ 0.97
Options Vested and Exercisable, Number Vested and Exercisable	68,828
Options Vested and Exercisable, Weighted-Average Exercise Price	$ 0.97
Exercise Price 2.51
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise Price	$ 2.51
Options Outstanding, Number Outstanding	269,401
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	8 years 8 months 12 days
Options Outstanding, Weighted-Average Exercise Price	$ 2.51
Options Vested and Exercisable, Number Vested and Exercisable	95,626
Options Vested and Exercisable, Weighted-Average Exercise Price	$ 2.51
Exercise Price 2.89
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise Price	$ 2.89
Options Outstanding, Number Outstanding	52,000
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	9 years 2 months 12 days
Options Outstanding, Weighted-Average Exercise Price	$ 2.89
Exercise Price 2.93
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise Price	$ 2.93
Options Outstanding, Number Outstanding	372,833
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	9 years 4 months 24 days
Options Outstanding, Weighted-Average Exercise Price	$ 2.93
Options Vested and Exercisable, Number Vested and Exercisable	49,133
Options Vested and Exercisable, Weighted-Average Exercise Price	$ 2.93
Exercise Price 3.18
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise Price	$ 3.18
Options Outstanding, Number Outstanding	155,000
Options Outstanding, Weighted-Average Remaining Contractual Life (Years)	9 years 7 months 6 days
Options Outstanding, Weighted-Average Exercise Price	$ 3.18
Options Vested and Exercisable, Number Vested and Exercisable	7,500
Options Vested and Exercisable, Weighted-Average Exercise Price	$ 3.18

XML

Stock Award Plan - Summary of Restricted Stock Unit Activity (Details) - Restricted Stock Units	12 Months Ended
	Dec. 31, 2017 $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Beginning balance | shares	30,000
Number of Shares, Granted | shares	20,000
Number of Shares, Released | shares	(30,000)
Number of Shares, Ending balance | shares	20,000
Weighted-Average Grant Date Fair Value, Beginning balance | $ / shares	$ 2.89
Weighted-Average Grant Date Fair Value, Granted | $ / shares	19.42
Weighted-Average Grant Date Fair Value, Released | $ / shares	2.89
Weighted-Average Grant Date Fair Value, Ending balance | $ / shares	$ 19.42

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Stock-Based Compensation - Distribution of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share Based Compensation Expense [Line Items]
Stock-based compensation	$ 1,448	$ 439	$ 164
Cost of Revenue
Share Based Compensation Expense [Line Items]
Stock-based compensation	31	15	7
Research and Development
Share Based Compensation Expense [Line Items]
Stock-based compensation	273	102	73
Selling, General and Administrative
Share Based Compensation Expense [Line Items]
Stock-based compensation	$ 1,144	$ 322	$ 84

XML

Stock-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected dividend yield	0.00%
Employee Stock Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected dividend yield	0.00%	0.00%	0.00%
Share-based compensation arrangement by share-based payment award, weighted-average grant date fair value	$ 3.71	$ 1.36	$ 0.53
Remaining unrecognized stock-based compensation expense	$ 2.3	$ 0.8
Unrecognized stock-based compensation expense will be recognized over a weighted-average remaining period	3 years 8 months 12 days	3 years 8 months 12 days
Non-Employee Stock Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected dividend yield	0.00%	0.00%	0.00%
Share-based compensation arrangement by share-based payment award, weighted-average grant date fair value	$ 7.34	$ 2.16	$ 0.53
Remaining unrecognized stock-based compensation expense	$ 0.3	$ 0.2
Unrecognized stock-based compensation expense will be recognized over a weighted-average remaining period	1 year 10 months 24 days	4 years

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Stock-Based Compensation - Summary of Weighted-Average Assumptions Used in Black-Scholes Option-Pricing Model to Determine Fair Value of Stock Options (Details) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Dividend rate	0.00%
Employee Stock Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected term (in years)	6 years 3 months 10 days	6 years 2 months 8 days	6 years 3 months 18 days
Risk-free interest rate	2.01%	1.38%	1.67%
Expected volatility	53.00%	51.00%	46.00%
Dividend rate	0.00%	0.00%	0.00%
Fair value of common stock	$ 5.14	$ 2.35	$ 0.86
Non-Employee Stock Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected term (in years)	10 years	10 years	10 years
Risk-free interest rate	2.30%	2.02%	2.09%
Expected volatility	53.00%	53.00%	50.00%
Dividend rate	0.00%	0.00%	0.00%
Fair value of common stock	$ 14.40	$ 2.68	$ 0.84

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Net Income Per Share - Additional Information (Details)	12 Months Ended
	Dec. 31, 2017 shares	Dec. 31, 2016 shares	Dec. 31, 2015 shares
Earnings Per Share [Abstract]
Convertible preferred stock, terms of conversion	Prior to the closing of the Company’s IPO, all outstanding shares of its Series Seed, Series A, and Series B convertible preferred shares, which were participating securities, were converted to common stock on a one-to-one basis.
Preferred stock convertible conversion ratio	1
Common stock issued for conversion of preferred shares	10,742,500
Antidilutive securities excluded from computation of earnings per share amount	7,000	56,000	39,000

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Net Income Per Share - Computation of Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Basic:
Net income	$ 60	$ 1,283	$ 1,375	$ 1,039	$ 439	$ 1,330	$ 808	$ 904	$ 3,757	$ 3,481	$ 4,057
Net income allocable to preferred stockholders									1,936	2,627	3,170
Net income allocable to common stockholders									1,821	854	887
Diluted:
Net income	$ 60	$ 1,283	$ 1,375	$ 1,039	$ 439	$ 1,330	$ 808	$ 904	3,757	3,481	4,057
Net income allocable to preferred stockholders									1,823	2,477	3,002
Net income allocable to common stockholders									$ 1,934	$ 1,004	$ 1,055
Denominator:
Weighted-average shares outstanding in computing basic net income per share allocable to common stockholders									7,145,641	3,493,946	3,007,311
Effect of potentially dilutive securities:
Stock options									910,688	864,441	766,835
Weighted-average shares used in computing diluted net income per common share allocable to common stockholders									8,056,329	4,358,387	3,774,146
Net income per common share:
Basic		$ 0.09	$ 0.09	$ 0.07	$ 0.03	$ 0.09	$ 0.06	$ 0.06	$ 0.25	$ 0.24	$ 0.30
Diluted		$ 0.08	$ 0.09	$ 0.07	$ 0.03	$ 0.09	$ 0.05	$ 0.06	$ 0.24	$ 0.23	$ 0.28

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Income Taxes - Schedule of Components of Income Before Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Domestic									$ 6,141	$ 5,311	$ 3,888
Foreign									131	52	1
Income before income taxes	$ 651	$ 1,929	$ 2,114	$ 1,578	$ 858	$ 1,960	$ 1,198	$ 1,347	$ 6,272	$ 5,363	$ 3,889

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Income Taxes - Schedule of Components of Provision For Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Current:
Federal									$ 2,089	$ 2,034	$ 659
Foreign									55	40	1
State									1	1	1
Total Current									2,145	2,075	661
Deferred income taxes									370	(193)	(829)
Provision for income taxes	$ 591	$ 646	$ 739	$ 539	$ 419	$ 630	$ 390	$ 443	$ 2,515	$ 1,882	$ (168)

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Inocme Taxes - Schedule of Effective Tax Rate Differs from Applicable U.S Statutory Federal Income Tax Rates (Details)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Effective Income Tax Rate Continuing Operations Tax Rate Reconciliation [Abstract]
U.S. statutory federal taxes at statutory rate	34.00%	34.00%	34.00%
State taxes - net of federal benefit	0.01%	0.01%	0.01%
Research and development benefit	(1.72%)	(2.59%)	(4.08%)
Permanent items and other	0.94%	2.55%	0.55%
Change in valuation allowance	1.78%	1.12%	(34.80%)
Tax rate change	5.06%
Effective tax rate	40.07%	35.09%	(4.32%)

XML

Income Taxes - Schedule of Components of Net Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets:
Net operating loss carryforwards	$ 85	$ 71	$ 71
Research and other credits	309	211	151
Accruals	243	464	192
Intangibles	323	574	623
Other	140	97	50
Total deferred tax assets	1,100	1,417	1,087
Deferred tax liabilities:
Property and equipment - net	(54)	(113)	(36)
Total deferred tax liabilities	(54)	(113)	(36)
Valuation allowance	(394)	(282)	(222)
Deferred tax assets - net	$ 652	$ 1,022	$ 829

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Income Taxes - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax [Line Items]
Corporate tax rate, percentage		34.00%	34.00%	34.00%
Decrease in net deferred tax assets		$ 300,000
Deferred tax assets		1,000,000
Deferred tax assets, net		700,000
Liabilities for repatriation of foreign income and taxes		35,000
Foreign income from foreign subsidiaries offset with foreign tax credit.		34,000
Unrecognized tax benefits		200,000	$ 200,000
State Income Tax Purposes
Income Tax [Line Items]
Net operating loss carryforwards		$ 1,200,000	1,200,000
Operating loss, carryforwards expiration year		2032
Credit carryforwards, amount		$ 500,000	400,000
Federal Income Tax Purposes
Income Tax [Line Items]
Net operating loss carryforwards		0	0
Credit carryforwards, amount		$ 0	$ 0
Scenario Forecast
Income Tax [Line Items]
Corporate tax rate, percentage	21.00%
Maximum
Income Tax [Line Items]
Measurement period for completion of certain income tax effects from act of enactment date		1 year

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Selected Quarterly Financial Data (Unaudited) - Summary of Unaudited Consolidated Statements of Operations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Revenue	$ 7,761	$ 8,112	$ 8,039	$ 7,230	$ 5,888	$ 7,628	$ 7,396	$ 6,244	$ 31,142	$ 27,156	$ 20,245
Cost of revenue	3,473	3,427	3,369	2,952	2,899	3,388	3,683	2,765	13,221	12,735	8,803
Gross profit	4,288	4,685	4,670	4,278	2,989	4,240	3,713	3,479	17,921	14,421	11,442
Operating expenses
Research and development	1,565	1,156	1,197	1,465	1,004	1,180	1,101	1,095	5,383	4,380	4,964
Selling, general and administrative	2,068	1,541	1,357	1,227	1,117	1,099	1,417	1,045	6,193	4,678	2,592
Total operating expenses	3,633	2,697	2,554	2,692	2,121	2,279	2,518	2,140	11,576	9,058	7,556
Income from operations	655	1,988	2,116	1,586	868	1,961	1,195	1,339	6,345	5,363	3,886
Other income (expense)	(4)	(59)	(2)	(8)	(10)	(1)	3	8	(73)		3
Income before income taxes	651	1,929	2,114	1,578	858	1,960	1,198	1,347	6,272	5,363	3,889
Income taxes	591	646	739	539	419	630	390	443	2,515	1,882	(168)
Net income	$ 60	$ 1,283	$ 1,375	$ 1,039	$ 439	$ 1,330	$ 808	$ 904	$ 3,757	$ 3,481	$ 4,057
Net income per share allocable to common stockholders:
Basic		$ 0.09	$ 0.09	$ 0.07	$ 0.03	$ 0.09	$ 0.06	$ 0.06	$ 0.25	$ 0.24	$ 0.30
Diluted		$ 0.08	$ 0.09	$ 0.07	$ 0.03	$ 0.09	$ 0.05	$ 0.06	$ 0.24	$ 0.23	$ 0.28