| Summary of significant accounting policies | (2) Summary of significant accounting policies Significant accounting policies The Company’s significant accounting policies are disclosed in its Annual Report on Form 10-K for the year ended December 31, 2023 filed with the SEC and have not materially changed during the six months ended June 30, 2024. Reclassifications Certain amounts in the prior period consolidated financial statements have been reclassified to conform to the current period presentation. Revenue recognition The Company follows ASC 606, Revenue from Contracts with Customers The Company generates revenue from the sale and installation of instruments, related warranty services, reagents, software (both company-owned and with third parties), and laboratory services. Pursuant to ASC 606, revenue is recognized when a customer obtains control of promised goods or services. The amount of revenue recognized reflects the consideration the Company expects to be entitled to receive in exchange for these goods and services. To determine the appropriate amount of revenue to be recognized for arrangements determined to be within the scope of Topic 606, the Company performs the following five steps: (i) identification of the customer contract; (ii) identification of the performance obligations; (iii) measurement of the transaction price, including the constraint on variable consideration; (iv) allocation of the transaction price to the performance obligations; and (v) recognition of revenue when (or as) the Company satisfies each performance obligation. The Company only applies the five-step model to contracts when it is probable that the Company will collect consideration it is entitled to in exchange for the goods or services it transfers to the customer. The Company evaluates all promised goods and services within a customer contract and determines which of those are separate performance obligations. This evaluation includes an assessment of whether the good or service is capable of being distinct and whether the good or service is separable from other promises in the contract. Promised goods or services are considered distinct when (i) the customer can benefit from the good or service on its own or together with other readily available resources and (ii) the promised good or service is separately identifiable from other promises in the contract. Most of the Company’s contracts with customers contain multiple performance obligations (i.e., sale of an instrument and warranty services). For these contracts, the Company accounts for individual performance obligations separately if they are distinct (i.e. capable of being distinct and separable from other promises in the contract). The transaction price is allocated to the separate performance obligations on a relative standalone selling price basis. Excluded from the transaction price are sales tax and other similar taxes which are presented on a net basis. In order to determine the stand-alone selling price, the Company conducts a periodic analysis to determine whether various goods or services have an observable stand-alone selling price as well as to identify significant changes to current stand-alone selling prices. If the Company does not have an observable stand-alone selling price for a particular good or service, then the stand-alone selling price for that particular good or service is estimated using an approach that maximizes the use of observable inputs. The Company’s process for determining stand-alone selling price requires judgment and considers multiple factors that are reasonably available and maximizes the use of observable inputs that may vary over time depending upon the unique facts and circumstances related to each performance obligation. The Company believes that this method results in an estimate that represents the price the Company would charge for the product offerings if they were sold separately. Taxes, such as sales, value-added and other taxes, collected from customers concurrent with revenue generating activities and remitted to governmental authorities are not included in revenue. Shipping and handling costs associated with outbound freight are accounted for as a fulfillment cost and are included in cost of sales. Product Revenue Product revenue is generated by the sale of instruments and consumable reagents predominantly through the Company’s direct sales force in the United States and in geographic regions outside the United States. The Company generally does not offer product return or exchange rights (other than those relating to defective goods under warranty) or price protection allowances to its customers. When an instrument is purchased by a customer, the Company recognizes revenue when the related performance obligation is satisfied (i.e. when the control of an instrument has passed to the customer). Revenue from the sale of consumables is recognized upon shipment to the customer. The Company’s perpetual software licenses generally have significant stand-alone functionality to the customer upon delivery and are considered to be functional intellectual property. The Company’s perpetual software licenses are considered distinct performance obligations, and revenue allocated to the software license is typically recognized upon provision of the license/software code to the customer (i.e., when the software is available for access and download by the customer). Service and Other Revenue Product sales of instruments include a service-based warranty typically for one year one-year separately charged installation services is recognized upon completion of the installation process. Additionally, the Company provides laboratory services, in which revenue is recognized as services are performed. For laboratory services, the Company generally uses the output method to measure the extent of progress towards completion of the performance obligation. For companion diagnostic development, the Company generally uses the cost-to-cost approach to measure the extent of progress towards completion of the performance obligation because the Company believes it best depicts the transfer of assets to the customer. Under the output method, the extent of progress towards completion is measured based on the value of the services transferred to date relative to the remaining services promised under the contract. Under the cost-to-cost measure approach, the extent of progress towards completion is measured based on the ratio of costs incurred to date to the total estimated costs at completion of the performance obligation. Revenues are recorded proportionally as costs are incurred. The Company records shipping and handling billed to customers as service and other revenue and the related costs in cost of service and other revenue in the consolidated statements of operations. In June 2022, the Company entered into a Companion Diagnostic Agreement with Acrivon Therapeutics, Inc. (the “Acrivon Agreement”) to co-develop, validate, and commercialize Acrivon’s OncoSignature® test. On December 4, 2023, the Company amended the Acrivon Agreement, which expanded the scope of work and increased total development milestone payments to an aggregate of $17,250. Such amendment was accounted for as a modification to the existing contract. The Company is entitled to be paid through an upfront payment and at the achievement of certain developmental, commercial, and FDA milestones during the development that could aggregate to $17,850. A portion of these payments have been received from June 2022 through June 30, 2024. The Acrivon Agreement is in the scope of ASC 606, Revenue from Contracts with Customers The costs incurred by the Company under this arrangement are included as research and development expenses in the Company’s consolidated statements of operations as these costs are related to the development of new services and technology to be owned and offered by the Company. Disaggregation of Revenue The Company disaggregates revenue from contracts with customers by type of products, and between instrument warranty and service and other revenue, as it best depicts how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors. The following table disaggregates the Company’s revenue by major source: Three months ended Six months ended June 30, 2024 June 30, 2023 June 30, 2024 June 30, 2023 Revenue Product revenue Instruments $ 8,295 $ 11,276 $ 13,164 $ 20,883 Consumables 7,390 5,819 14,391 11,531 Standalone software products 241 52 511 257 Total product revenue $ 15,926 $ 17,147 $ 28,066 $ 32,671 Service and other revenue Service and other revenue $ 4,459 $ 3,869 $ 7,842 $ 7,421 Instrument warranty 2,779 2,505 5,606 4,839 Total service and other revenue $ 7,238 $ 6,374 $ 13,448 $ 12,260 Total revenue $ 23,164 $ 23,521 $ 41,514 $ 44,931 Significant Judgments The Company’s contracts with customers often include promises to transfer multiple products and services to a customer. Determining whether products and services are considered distinct performance obligations that should be accounted for separately versus together requires significant judgment. Once the Company determines the performance obligations, the Company determines the transaction price, which includes estimating the amount of variable consideration, based on the most likely amount, to be included in the transaction price, if any. The Company then allocates the transaction price to each performance obligation in the contract based on a relative standalone selling price method. The corresponding revenue is recognized as the related performance obligations are satisfied as discussed in the revenue categories above. Judgment is required to determine the standalone selling price for each distinct performance obligation. The Company determines standalone selling price based on the price at which the performance obligation in the contract (i.e. instrument, service warranty, installation) would be sold separately. As the first-year warranty for each instrument is embedded in the instrument price, the amount allocated to the first-year warranty has been determined based on the separately identifiable price of the Company’s extended warranty offering when it is sold on a renewal basis. If the standalone selling price is not observable through past transactions, the Company estimates the standalone selling price taking into account available information such as market conditions and the expected costs and margin related to the performance obligations. Contracts in which only one performance obligation is identified (i.e., consumables and standalone software products) do not require allocation of the transaction price. Contract Assets and Liabilities The Company’s contract assets consist of revenues recognized, but not yet invoiced to customers for lab services, companion diagnostic development, and instruments. The Company classifies contract assets in accounts receivable. Contract assets are classified as current or noncurrent based on timing of when the Company expects to invoice the customer. The Company recorded $2,248 and $1,276 in contract assets at June 30, 2024 and December 31, 2023, respectively. The Company’s contract liabilities consist of upfront payments for service-based warranties on instrument sales, as well as lab services. The Company classifies contract liabilities associated with service based warranties in deferred revenue, and contract liabilities associated with lab services in accrued expenses. Contract liabilities are classified as current or noncurrent based on the timing of when the Company expects to service the warranty, or complete the lab services contract. Cost to Obtain and Fulfill a Contract Under ASC 606, the Company is required to capitalize certain costs to obtain customer contracts and costs to fulfill customer contracts. These costs are required to be amortized to expense on a systematic basis that is consistent with the transfer to the customer of the goods or services to which the asset relates, compared to previously being expensed as incurred. As a practical expedient, the Company recognizes any incremental costs to obtain a contract as an expense when incurred if the amortization period of the asset is one year or less. Capitalizable costs to obtain contracts, such as commissions, and costs to fulfill customer contracts were determined to be immaterial for the three and six months ended June 30, 2024 and 2023. Stock-based compensation The Company records stock-based compensation for awards granted to employees, non-employees, and to members of the Board of Directors of the Company (the “Board”) for their services on the Board based on the grant date fair value of awards issued, and the expense is recorded on a straight-line basis over the requisite service period, which is generally four years. The Company uses the Black-Scholes-Merton option pricing model to determine the fair value of stock options. The use of the Black-Scholes-Merton option-pricing model requires management to make assumptions with respect to the expected term of the option, the expected volatility of the common stock consistent with the expected life of the option, risk-free interest rates and expected dividend yields of the common stock. The expected term was determined according to the simplified method, which is the average of the vesting tranche dates and the contractual term. Due to the lack of company-specific historical and implied volatility, the Company bases its estimate of expected volatility on the historical volatility of a group of similar companies that are publicly traded, in combination with the Company’s historical volatility. For these analyses, companies with comparable characteristics are selected, including enterprise value and position within the industry, and with historical price information sufficient to meet the expected life of the stock-based awards. The Company computes the historical volatility data using the daily closing prices for the Company’s and the selected companies’ shares during the equivalent period of the calculated expected term of its stock-based awards. The Company will continue to apply this process until a sufficient amount of historical information regarding volatility of its own stock price becomes available. The risk-free interest rate is determined by reference to the U.S. Treasury zero-coupon issues with remaining maturities similar to the expected term of the options. The Company has not paid, and does not anticipate paying, cash dividends on shares of common stock; therefore, the expected dividend yield is assumed to be zero. For restricted stock units (“RSUs”) issued under the Company’s stock-based compensation plans, the fair value of each grant is calculated based on the Company’s stock price on the date of grant. The Company has elected to account for forfeitures as they occur; any compensation cost previously recognized for an award that is forfeited because of a failure to satisfy a service or performance condition will be reversed in the period of the forfeiture. Refer to Note 11 for further details on the Company’s stock-based compensation plans. Net loss per share attributable to common stockholders Basic and diluted net loss per common share outstanding is determined by dividing net loss by the weighted average common shares outstanding during the period. For purposes of the diluted net loss per share calculations, stock options, and unvested restricted stock units, are considered to be potentially dilutive securities, but are excluded from the diluted net loss per share because their effect would be anti-dilutive and therefore basic and diluted net loss per share were the same for all periods presented. Comprehensive income (loss) Components of comprehensive income (loss), including net loss, are reported in the financial statements in the period in which they are recognized. Other comprehensive income (loss) is defined as the change in equity during a period from transactions and other events and circumstances from non-owner sources. Net loss and other comprehensive income (loss) are reported net of any related tax effect to arrive at comprehensive income (loss). Comprehensive income (loss) includes net loss as well as other changes in stockholders’ equity that result from transactions and economic events other than those with stockholders which for the three and six months ended June 30, 2024 and 2023 consist of unrealized gain (loss) on marketable securities. Marketable securities Marketable securities represent holdings of available-for-sale marketable debt securities in accordance with the Company’s investment policy. Short-term marketable securities mature within one year from the balance sheet date while long-term marketable securities mature after one year. Investments in marketable securities are recorded at fair value, with any unrealized gains and losses reported within accumulated other comprehensive income as a separate component of stockholders’ equity until realized or until a determination is made that an other-than-temporary decline in market value has occurred. The amortized cost of debt securities is adjusted for amortization of premiums and accretion of discounts to maturity. Such amortization and accretion are reflected as a component of interest income. Interest on securities sold is determined based on the specific identification method and reflected as interest income. Any realized gains or losses on the sale of investment are reflected as realized (loss) gain on investments. Recent accounting standards From time to time, new accounting pronouncements are issued by the FASB or other standard setting bodies and adopted by the Company as of the specified effective date. The Company is considered to be an “emerging growth company” as defined in the Jumpstart Our Business Startups Act of 2012, as amended (Jobs Act). The Jobs Act provides that an emerging growth company can take advantage of an extended transition period for complying with new or revised accounting standards. Thus, an emerging growth company can delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. The Company has elected to avail itself of this extended transition period and, as a result, the Company will not be required to adopt new or revised accounting standards on the relevant dates on which adoption of such standards is required for other public companies. Recently issued but not yet adopted accounting standards In November 2023, the FASB issued ASC Update No. 2023-07, Segment Reporting (Topic 280): Improvement to Reportable Segment Disclosures In December 2023, the FASB issued ASC Update No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures |
