Revenue Recognition

The Company principally sells its products to distributors who, in turn, sell to Original Equipment Manufacturers (“OEM”) and original design manufacturers (“ODM”), contract manufacturers and design houses. The Company accounts for revenue under Accounting Standards Codification Topic 606 (“ASC 606”), Revenue from Contracts with Customers. Under ASC 606, the Company satisfies its performance obligations and primarily recognizes revenue upon shipment, at which time control of its products is transferred to its customers. The Company applies the following five-step model for recognizing revenue from contracts with customers: (1) identify the contract with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract; and (5) recognize revenue when the performance obligation is satisfied.

Product revenue consists of sales of mixed-signal integrated circuits into the security surveillance and automotive markets. The Company generally requires advance payments from customers and records these advance payments, or contract liabilities, as customer deposits on its consolidated balance sheet. Since the Company’s performance obligations relate to contracts with a duration of less than one year, the Company has elected to apply the optional exemption practical expedient provided in ASC 606 and is therefore not required to disclose the aggregate amount of the transaction price allocated to performance obligations that are unsatisfied or partially unsatisfied at the end of the reporting period. The Company provides product assurance warranty only and does not offer warranties to be purchased separately. The Company allocates the transaction price to each distinct product based on a relative standalone selling price. Revenue is recognized when control of the product is transferred to the Company’s customers, upon shipment, at which time the performance obligation is satisfied. The Company’s shipping terms are primarily FOB (free on board) shipping point, whereby legal title, risks and rewards of ownership, and physical possession are transferred to the customer upon shipment. Substantially all of the Company’s customers pay in advance of shipment, and no stock rotation, price protection or return rights are offered.

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 of revenue 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 the valuation of goodwill and net assets acquired via business combination. These estimates are based upon information available as of the date of the consolidated financial statements. Actual results could differ materially from those estimates.

Certain Significant Risks and Uncertainties

The Company operates in a dynamic industry and can be affected by a variety of factors. For example, any of the following areas could have a negative effect on the Company in terms of its future financial position, results of operations or cash flows: the general state of the U.S., China and world economies; the highly cyclical nature of the industries the Company serves; successful and timely completion of product design efforts; trade restrictions by the United States against the Company's customers in China, or potential retaliatory trade actions taken by China; the loss of any of its larger customers; restrictions on the Company's ability to sell to foreign customers due to additional U.S. or new China trade laws, regulations and requirements; disruptions of the supply chain of components needed for its products; fundamental changes in the technology underlying the Company’s products; the hiring, training and retention of key employees; and new product design introductions by competitors.

The Company has been impacted by adverse macroeconomic and geopolitical conditions. These conditions include but are not limited to inflation, foreign currency fluctuations, the COVID-19 pandemic, and the supply chain challenges and disruptions caused by any of these events. Management continues to actively monitor the impact of these conditions on the Company’s financial condition, liquidity, operations, end-customers (including its significant end-customers), distributors, suppliers, industry, and workforce. The extent to which such events impact the Company’s business, prospects and results of operations will depend on future developments, which are highly uncertain. The Company has made estimates of the impact of these events within its financial statements and there may be changes to those estimates in future periods.

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, investments, and trade receivables. Risks associated with cash and cash equivalents, and investments are mitigated by banking with, and investing in, 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 each significant customer, or distributor, and significant end-customer, revenue as a percentage of total revenue is as follows:


	Year Ended
	December 31,
	2023			2022
Customer
Customer A		40	%		47	%
Customer B		11	%	*
End-Customer
End-Customer A (1)		24	%		33	%

* Less than 10%

(1)

Sales to End-Customer A primarily occurred through Customer A

Concentration of Supplier Risk

The Company is a fabless producer of semiconductors and it currently relies on Taiwan Semiconductor Manufacturing Company Limited and United Microelectronics Corporation (formerly Fujitsu Electronics America, Inc.) to produce substantially all of its semiconductors. Also, it relies on Advanced Semiconductor Engineering, Inc. and Sigurd Microelectronics Corporation to assemble, package and test substantially all of its semiconductors to satisfy substantially all of the Company’s production requirements. The failure of any 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.

Financial instruments held by the Company consist primarily of corporate bonds, commercial paper and money market funds. The Company classifies the securities with remaining maturities of twelve months or less as short-term investments, and remaining maturities of over twelve months as long-term investments. The Company’s financial instruments are classified as available-for-sale. Unrealized gains and losses on securities, net of tax, are recorded in accumulated other comprehensive income (loss) and reported as a component of stockholders’ equity. Interest is included in Other income, net on the consolidated income statements and comprehensive income.

The Company evaluates the investments periodically for possible other-than-temporary impairment and reviews factors such as the length of time and extent to which fair value has been below cost basis, the financial condition of the issuer, the Company’s intent to hold and whether the Company will not be required to sell the security before its anticipated recovery, on a more-likely-than-not basis. If the declines in the fair value of the investments are determined to be other-than-temporary, the Company reports the credit loss portion of such decline in Other income-net and the remaining noncredit loss portion in accumulated other comprehensive income (loss).

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 goods 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, 2023 and 2022 was $0.9 million and $0.9 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 and software, furniture and leasehold improvements.

The Company evaluates the recoverability of property and equipment in accordance with ASC No. 360, Accounting for 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.

Stock-Based Compensation

The Company measures the cost of employee services received in exchange for equity incentive awards, including stock options and restricted stock unit awards, based on the grant date fair value of the award. The fair value of a stock option award is estimated using the Black-Scholes option pricing model which requires the Company to estimate certain key assumptions including, stock price, future stock price volatility, expected term of the options, risk free rates, and dividend yields. The fair value of a restricted stock unit is determined based on the fair value of the Company’s common stock on the date of grant. 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 9 “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. 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 Income Statements and Comprehensive 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 provides clarification 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 Issued Accounting Pronouncements Not Yet Adopted (As of December 31, 2023)

In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosure. This guidance improves reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. The guidance is effective for fiscal years beginning after December 15, 2023, and interim period within fiscal years beginning after December 15, 2024. The company plans to adopt the guidance prior to the effective date and has not early adopted for the annual period ending December 31, 2023. The impact of this guidance is not expected to have any material impact on the disclosure of the company’s consolidated financial statements.

In December, 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvement to income tax disclosure. This guidance modifies the rules on income tax disclosures to require entities to disclose (1) specific categories in the rate reconciliation, (2) the income or loss from continuing operations before income tax expense or benefit (separated between domestic and foreign) and (3) income tax expense or benefit from continuing operations (separated by federal, state and foreign). The guidance also requires entities to disclose their income tax payments to international, federal and state and local jurisdictions, among other changes. The guidance is effective for fiscal years beginning after December 15, 2024. The company plans to adopt the guidance prior to the effective date and has not early adopted for the annual period ending December 31, 2023. The impact of this guidance is not expected to have any material impact on the company’s consolidated financial statements.

Recently Adopted Accounting Pronouncements

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which requires the measurement and recognition of expected credit losses for financial assets held at amortized cost. It also eliminates the concept of other-than-temporary impairment and requires credit losses related to available-for-sale debt securities to be recorded through an allowance for credit losses rather than as a reduction in the amortized cost basis of the securities. These changes will result in more timely recognition of credit losses. The guidance is effective for fiscal years beginning after December 15, 2022 for SEC filers that are eligible to be smaller reporting companies under the SEC’s definition, and interim periods within those fiscal years. The Company adopted this guidance on January 1, 2023. The adoption did not have a material impact on the Company’s consolidated financial statements as of and for the year ended December 31, 2023.

In January 2017, the FASB issued ASU No. 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment ("ASU 2017-04"). ASU 2017-04 eliminates the requirement to calculate the implied fair value of goodwill (second step) to measure a goodwill impairment charge. Under the guidance, an impairment charge will be measured based on the excess of the reporting unit’s carrying amount over its fair value (first step). The guidance is effective for fiscal years beginning after December 15, 2022 for reporting companies that are eligible to be smaller reporting companies under the SEC’s definition, and interim periods within those fiscal years. The Company adopted this guidance on January 1, 2023. The adoption did not have a material impact on the Company’s consolidated financial statements as of and for the year ended December 31, 2023.