The Company and its Significant Accounting Policies | Note 1 ‑ The Company and its Significant Accounting Policies Description of Business Interlink Electronics, Inc. (“we,” “us,” “our,” “Interlink” or the “Company”) designs, develops, manufactures and sells a range of force-sensing technologies that incorporate our proprietary materials technology, firmware and software into a portfolio of standard sensor based products and custom sensor system solutions. These include sensor components, subassemblies, modules and products that support effective, efficient cursor control and novel three-dimensional user inputs. Our Human Machine Interface (“HMI”) technology platforms are deployed in a wide range of markets including consumer electronics, automotive, industrial, and medical. Interlink serves our world-wide customer base from our corporate headquarters in Irvine, California, our distribution and logistics center in Camarillo, California, our engineering, research and development center in Singapore, our printed-electronics manufacturing facility in Shenzhen, China and our distribution and logistics center in Hong Kong. We also maintain engineering, assembly and prototyping capabilities in Camarillo, California along with technical and sales offices in Japan and at multiple locations in the United States. Our principal executive office is located at 1 Jenner, Suite 200, Irvine, California 92618 and our telephone number is (805) 484-8855. Our website address is www.interlinkelectronics.com. Fiscal Year Our fiscal year is the calendar year reporting cycle beginning January 1 and ending December 31. Basis of Presentation The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). Our reporting currency is the United States dollar. Our consolidated financial statements include the accounts of Interlink Electronics, Inc. and our subsidiaries in China, Hong Kong and Singapore. All intercompany accounts and transactions were eliminated in consolidation. Foreign Currency Translation The functional currency of our Chinese subsidiary is the Chinese Yuan Renminbi. The functional currency for our Hong Kong and Singapore subsidiaries is the United States dollar. However, our Hong Kong and Singapore subsidiaries also transact business in their local currency. Therefore, assets and liabilities are translated into United States dollars at the exchange rate in effect on the balance sheet date. Revenues and expenses are translated at the average exchange rate prevailing during the respective periods. Foreign currency transaction and translation gains and losses are included in results of operations within other income (expense), net, for which losses of $104 thousand and $14 thousand were recorded in the years ended December 31, 2020 and 2019, respectively. Segment Reporting We operate in one reportable segment: the manufacture and sale of force sensing technology solutions. Use of Estimates The preparation of consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and disclosures made in the accompanying notes to the consolidated financial statements. Management regularly evaluates estimates and assumptions related to revenue recognition, allowances for doubtful accounts, warranty reserves, inventory valuation reserves, stock-based compensation, purchased intangible asset valuations and useful lives, asset retirement obligations, and deferred income tax asset valuation allowances. These estimates and assumptions are based on current facts, historical experience and various other factors that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about carrying values of assets and liabilities that are not readily apparent from other sources. The actual results we experience may differ materially and adversely from our original estimates. To the extent there are material differences between the estimates and the actual results, our future results of operations will be affected. Revenue Recognition The Company recognizes revenue in accordance with Accounting Standards Codification Topic 606, Revenue from Contracts with Customers (“ASC 606”), when its customer obtains control of promised goods or services, in an amount that reflects the consideration which we expect to receive in exchange for those goods or services. To determine revenue recognition for arrangements that are within the scope of ASC 606, we perform the following five steps; (i) identify the contracts(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations. The five-step model is applied to contracts when it is probable that we will collect the consideration we are entitled to in exchange for the goods or services transferred to the customer. At contract inception, once the contract is determined to be within the scope of ASC 606, we assess the goods or services promised within each contrct and determine those that are performance obligations and assess whether each promised good or service is distinct. We then recognize revenue in the amount of the transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied. Delivery occurs when goods are shipped and title and risk of loss transfer to the customer, in accordance with the terms specified in the arrangement with the customer. Revenue recognition is deferred until the earnings process is complete. We (i) input orders based upon receipt of a customer purchase order, (ii) confirm pricing through the customer purchase order record, (iii) validate creditworthiness through past payment history, credit agency reports and other financial data, and (iv) recognize revenue upon shipment of goods or when risk of loss and title transfer to the buyer. All customers have warranty rights, and some customers also have explicit or implicit rights of return. We establish reserves for potential customer returns or warranty repairs based on historical experience and other factors that enable us to reasonably estimate the obligation. A portion of our product sales is made through distributors under agreements allowing for right of return. Our past history with these sell-through right of return provisions allow us to reasonably estimate the amount of inventory that could be returned pursuant to these agreements, and revenue is recognized accordingly. We recognize revenue for non-recurring engineering or non-recurring tooling fees when there is persuasive evidence of an arrangement, performance obligations are identified, fees are fixed or determinable, delivery has occurred, and collectability is reasonably assured. Warranty We establish reserves for future product warranty costs that are expected to be incurred pursuant to specific warranty provisions with our customers. We generally warrant our products against defects for one year from date of shipment, with certain exceptions in which the warranty period can extend to more than one year based on contractual agreements. A warranty reserve is recorded against revenues when products are shipped. At each reporting period, we adjust our reserve for warranty claims based on our actual warranty claims experience as a percentage of net revenue for the preceding 12 months and also consider the effect of known operations issues that may have an impact that differs from historical trends. Historically, our warranty returns have not been material. Shipping and Handling Fees and Costs Amounts billed to customers for shipping and handling fees are presented in revenue. Costs incurred for shipping and handling are included in cost of revenue. Engineering, Research and Development Costs Engineering, research and development (“R&D”) costs are expensed when incurred. R&D expenses consist primarily of compensation expenses for employees engaged in research, design and development activities. R&D expenses also include depreciation and amortization, and overhead, including facilities expenses. Advertising and Marketing Costs All of the costs related to advertising and marketing our products are expensed as incurred or at the time the marketing takes place. Stock-based Compensation All stock‑based payments to employees, including grants of employee stock options and employee stock purchase rights, are recognized in the financial statements based on their respective grant date (measurement date) fair values. We calculate the compensation cost of full-value awards such as restricted stock-based on the market value of the underlying stock at the date of the grant. We estimate the expected life of a stock award as the period of time that the award is expected to be outstanding. We are required to estimate the fair value of stock‑based payment awards on the date of grant using an option‑pricing model. The value of the portion of the award that is ultimately expected to vest is recognized as expense ratably over the requisite service periods. We estimate the fair value of each option award as of the date of grant using the Black‑Scholes option pricing model, which was developed for use in estimating the value of traded options that have no vesting restrictions and that are freely transferable. The Black‑Scholes option pricing model considers, among other factors, the expected life of the award and the expected volatility of our stock price. Although the Black‑Scholes option pricing model meets the accounting guidance requirements, the fair values generated by the Black-Scholes option pricing model may not be indicative of the actual fair values of our awards, as it does not consider other factors important to those stock-based payment awards, such as continued employment, periodic vesting requirements, and limited transferability. We have elected to recognize compensation expense for all stock‑based awards on a straight-line basis over the requisite service period for the entire award. The amount of compensation expense recognized through the end of each reporting period is equal to the portion of the grant-date value of the awards that have vested, or for partially vested awards, the value of the portion of the award that is ultimately expected to vest for which the requisite services have been provided. The benefits of tax deductions in excess of recognized compensation cost are reported as a financing cash flow. Other Income, Net Other income, net, consists of interest income, foreign currency exchange gains and losses and other non-operating gains and losses. Income Taxes We account for income taxes under the asset and liability method, whereby deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis and operating loss and tax credit carryforwards. We assess the likelihood that our deferred tax assets will be recovered from future taxable income and to the extent we believe that recovery is not determinable beyond a “more likely than not” standard, we establish a valuation allowance. To the extent we establish a valuation allowance or increase or decrease this allowance in a period, we include an expense or benefit within the tax provision in the statement of operations. We also utilize a “more likely than not” recognition threshold and measurement analysis for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. We recognize potential accrued interest and penalties related to unrecognized tax benefits within the consolidated statements of operations as income tax expense. We operate within multiple tax jurisdictions and are subject to audit in these jurisdictions. Our foreign subsidiaries are subject to foreign income taxes on earnings in their respective jurisdictions. Earnings of our foreign subsidiaries are included in our U.S. federal income tax return as they are earned. Comprehensive Income Comprehensive income includes all components of comprehensive income, including net income and any changes in equity during the period from transactions and other events and circumstances generated by non-owner sources. Earnings Per Share Basic net income per share is computed by dividing net income by the weighted average number of common shares outstanding during the period. Diluted net income per share is computed by dividing net income by the weighted average number of diluted common shares, which is inclusive of common stock equivalents from unexercised stock options and restricted stock units. Unexercised stock options and restricted stock units are considered to be common stock equivalents if, using the treasury stock method, they are determined to be dilutive. Under the two-class method of determining earnings for each class of stock, we consider the dividend rights and participating rights in undistributed earnings for each class of stock. Leases Effective January 2019, the Company accounts for its leases under ASC 842. Under this guidance, arrangements meeting the definition of a lease are classified as operating or financing leases, and are recorded on the consolidated balance sheet as both a right of use asset and lease liability, calculated by discounting fixed lease payments over the lease term at the rate implicit in the lease or the Company’s incremental borrowing rate. Lease liabilities are increased by interest and reduced by payments each period, and the right of use asset is amortized over the lease term. For finance leases, interest on the lease liability and the amortization of the right of use asset results in front-loaded expense over the lease term. Variable lease expenses are recorded when incurred. In calculating the right of use and lease liability, the Company has elected to combine lease and non-lease components. The Company excludes short-term leases having initial term of 12 months or less from the new guidance as an accounting policy election, and recognizes rent expense on a straight-line basis over the lease term. Risk and Uncertainties Our future results of operations involve a number of risks and uncertainties. Factors that could affect our business or future results and cause actual results to vary materially from historical results include, but are not limited to, the rapid change in our industry; problems with the performance, reliability or quality of our products; loss of customers; impacts of doing business internationally, including foreign currency fluctuations; potential shortages of the supplies we use to manufacture our products; disruptions in our manufacturing facilities; changes in environmental directives impacting our manufacturing process or product lines; the development of new proprietary technology and the enforcement of intellectual property rights by or against us; our ability to attract and retain qualified employees; and our ability to raise additional capital. Public health threats could have an adverse effect on our operations and financial results. Public health threats could adversely affect our ongoing or planned business operations. In particular, the outbreak in December 2019 of a novel coronavirus (COVID‑19) in China has resulted in quarantines, restrictions on travel and other business and economic disruptions. We cannot presently predict the scope and severity of any potential business shutdowns or disruptions, but if we or any of the third parties with whom we engage, including the suppliers, distributers, resellers and other third parties with whom we conduct business, were to experience shutdowns or other business disruptions, our ability to conduct our business in the manner and on the timelines presently planned could be materially and adversely impacted. Cash, Cash Equivalents and Restricted Cash We invest excess cash in highly liquid interest-bearing instruments, including commercial paper or money market accounts. Investments with original maturity dates less than 90 days are classified as cash equivalents. Cash that is reserved for a specific purpose and therefore not available for immediate or general business use is classified as restricted cash. All of our cash, cash equivalents and restricted cash are held at major financial institutions in the United States, China and Singapore. Our balances in each country were insured at the maximum limit determined by each country. In the U.S., we had approximately $3.9 million and $5.0 million in excess of the Federal Deposit Insurance Corporation limit of $250 thousand per depositor, per insured bank at December 31, 2020 and 2019, respectively. Approximately $1.2 million and $1.0 million held in banks in China at December 31, 2020 and 2019, respectively, were not insured. Approximately $149 thousand and $232 thousand held in banks in Singapore at December 31, 2020 and 2019, respectively, were not insured. Approximately $386 thousand and $351 thousand held in banks in Hong Kong at December 31, 2020 and 2019, respectively, were not insured. Accounts Receivable and Allowance for Doubtful Accounts Accounts receivable are recorded at the invoice amount and presented net of the allowance for doubtful accounts. Our receivables do not bear interest. We evaluate the collectability of accounts receivable at each balance sheet date using a combination of factors, such as specific customer historical experience and credit quality, overall historical data, age of the accounts receivable balances, and economic conditions that may affect a customer’s ability to pay. We include any accounts receivable balances that are determined to be uncollectible in the overall allowance for doubtful accounts using the specific identification method. After all attempts to collect a receivable have failed, the receivable is written off against the allowance. Inventories Inventories are stated at the lower of cost or net realizable value (NRV) and consist of materials, labor and overhead. Inventory costs are determined using standard costs which approximate actual costs under the first-in, first-out method. Costs include the costs of purchased finished products, sorted wafers, and outsourced assembly, testing and internal overhead. NRV is the amount by which the estimated selling price of the product exceeds the sum of any additional costs expected to be incurred on the sale of such product in the ordinary course of business. We evaluate inventories for excess quantities and obsolescence. Our evaluation considers market and economic conditions; technology changes; new product introductions; and changes in strategic business direction. Estimates by their very nature include elements that are uncertain. In order to state the inventory at the lower of cost or NRV, we maintain reserves against individual stocking units Inventory reserves, once established, are not reversed until the related inventories have been sold or scrapped. If future demand or market conditions are less favorable than our projections, a write-down of inventory may be required, and would be reflected in cost of product revenues sold in the period the revision is made. Property, Plant and Equipment, Net Property, plant and equipment are carried at cost less accumulated depreciation and amortization. Depreciation and amortization expense are calculated using the straight-line method over the assets’ remaining estimated useful lives, ranging from two to five years for machinery and equipment, including product tooling; and the shorter of the lease terms or estimated useful lives for leasehold improvements. When property, plant and equipment is retired or otherwise disposed of, the related cost and accumulated depreciation are removed from the accounts. Gains and losses from retirements and asset disposals are recorded in selling, general and administrative expenses. Repairs and maintenance on our property, plant and equipment are expensed in the period incurred. We perform periodic reviews to evaluate the recoverability of property, plant and equipment and to determine whether facts and circumstances exist that would indicate that the carrying amounts of property, plant and equipment exceed their fair values. If facts and circumstances indicate that the carrying amount of property, plant 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. All long-lived assets to be disposed of are reported at the lower of carrying amount or fair market value, less expected selling costs. Intangible Assets, Net Our intangible assets consist primarily of patents and trademarks and are carried at cost less accumulated amortization. We evaluate our finite-lived assets for impairment whenever events or changes in circumstances indicate the carrying value of an intangible asset or asset group may not be recoverable. The carrying value of an intangible asset or asset group is not recoverable if the amounts of undiscounted future cash flows the assets are expected to generate (including any net proceeds expected from the disposal of the asset) are less than its carrying value. When we identify that an impairment has occurred, we reduce the carrying value of the asset to its comparable market value (if available and appropriate) or to its estimated fair value based on a discounted cash flow approach. Currently, we do not have goodwill or indefinite-lived intangible assets. Fair Value Measurements We determine fair value measurements based on the assumptions that market participants would use in pricing the asset or liability. As a basis for considering market participant assumptions in fair value measurements, we follow the following fair value hierarchy that distinguishes between (1) market participant assumptions developed based on market data obtained from independent sources (observable inputs) and (2) our own assumptions about market participant assumptions developed based on the best information available in the circumstances (unobservable inputs): Level 1: Observable inputs such as quoted prices for identical assets or liabilities in active markets; Level 2: Other inputs observable directly or indirectly, such as quoted prices for similar assets or liabilities or market-corroborate inputs; and Level 3: Unobservable inputs for which there is little or no market data and which requires the owner of the assets or liabilities to develop its own assumptions about how market participants would price these assets or liabilities. Our assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of assets and liabilities and their placement within the fair value hierarchy. Recently Issued 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 ”, that significantly changes how entities will measure credit losses for most financial assets and certain other instruments that are not measured at fair value through net income, including trade receivables. The standard requires an entity to estimate its lifetime “expected credit loss” for such assets at inception, and record an allowance that, when deducted from the amortized cost basis of the financial asset, presents the net amount expected to be collected on the financial asset. The standard is effective for annual periods beginning after December 15, 2019, and interim periods therein. This adoption of this standard did not have a significant impact on our consolidated financial statements or disclosures. We reviewed all other recently issued accounting pronouncements and concluded they are not applicable or not expected to be material to our financial statements. Subsequent Events The Company has evaluated subsequent events through March 16, 2021, being the date these consolidated financial statements were issued. In January 2021, the Company formed a wholly owned subsidiary entity, IE Sensors, Inc. This entity has not yet commenced operations. In February 2021, the Company was notified that its loan under the Payroll Protection Program of the Coronavirus Aid, Relief, and Economic Security Act was forgiven, for which the economic effect will be recorded in the Company's consolidated statement of operations for the quarter ending March 31, 2021. |