Basis of Presentation and Summary of Significant Accounting Policies (Policies)	6 Months Ended
Jun. 30, 2021
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements reflect the accounts of the Company and its wholly-owned subsidiaries. The unaudited condensed consolidated balance sheet at December 31, 2020 has been derived from the audited consolidated financial statements at that date but does not include all information and disclosures required by generally accepted accounting principles in the United States of America (“U.S. GAAP”) for annual financial statements. These unaudited condensed consolidated financial statements and notes should be read in conjunction with the Company’s audited consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”) and U.S. GAAP for unaudited condensed consolidated financial information. Accordingly, they do not include all information and footnotes required by U.S. GAAP for complete financial statements. The accompanying unaudited condensed consolidated financial statements reflect all adjustments consisting of normal recurring adjustments which, in the opinion of management, are necessary for a fair statement of the Company’s financial position and results of its operations as of and for the periods presented. Unless indicated otherwise, all amounts presented in financial tables are presented in thousands, except for per share and par value amounts. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results could differ from those estimates. Given the global economic climate and additional or unforeseen effects from the COVID-19 pandemic, certain estimates are becoming more challenging, and actual results could differ materially from those estimates. The results of the Company’s operations for the three and six month period ended June 30, 2021 is not necessarily indicative of the results to be expected for the full year or for any other period.
Revenue Recognition	Revenue Recognition The Company recognizes revenue when control of the promised goods or services is transferred to its customers, in an amount that reflects the consideration expected to be received in exchange for those products and services. This process involves identifying the contract with a customer, determining the performance obligations in the contract, determining the contract price, allocating the contract price to the distinct performance obligations in the contract, and recognizing revenue when the performance obligations have been satisfied. A performance obligation is considered distinct from other obligations in a contract when it provides a benefit to the customer either on its own or together with other resources that are readily available to the customer and is separately identified in the contract. Performance obligations are considered satisfied once the Company has transferred control of a product or service to the customer, meaning the customer has the ability to use and obtain the benefit of the product or service. The Company recognizes revenue for satisfied performance obligations only when there are no uncertainties regarding payment terms or transfer of control. The Company generates the majority of its revenue from sales of its proprietary nCounter Analysis and GeoMx DSP systems, and related consumables. Services consist of instrument service contracts and service fees for assay processing. The Company at times may enter into collaboration agreements that generally recognizes revenue based on the timing and amount of development activities or the achievement of certain milestones. Expenses incurred in relation to research activities conducted in conjunction with our collaboration partners are recognized when the related activities have occurred and are classified in the statement of operations, generally as research and development expense.
Convertible Senior Notes	Convertible Senior Notes Prior to January 1, 2021, in accordance with the prior accounting guidance for debt with conversion and other options, the Company separately accounted for the liability and equity components of its 2.625% Convertible Senior Notes due 2025 (“Convertible Notes”) by allocating the proceeds between the liability component and the embedded conversion feature, or the equity component, due to the Company’s ability to settle the Convertible Notes in cash, common stock or a combination of cash and common stock, at its option. The carrying amount of the liability component was calculated by measuring the fair value of a similar liability that does not have an associated convertible feature. The allocation was performed in a manner that reflected the Company’s non-convertible debt borrowing rate for similar debt. The equity component of the Convertible Notes was recognized as a debt discount and represented the difference between the proceeds from the issuance of the Convertible Notes and the fair value of the liability of the Convertible Notes on their respective dates of issuance. In connection with the issuance of the Convertible Notes, the Company incurred certain financing costs associated directly with the issuance of the Convertible Notes. These issuance costs were deferred, and a portion of the deferred issuance costs were deemed attributable to the equity component and were allocated to additional paid-in capital. The Company adopted “ASU 2020-06, Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging — Contracts in Entity’s Own Equity (Subtopic 815-40)” (“ASU 2020-06”) effective January 1, 2021 and, as a result, is no longer allocating proceeds between a liability and an equity component. The Company uses the if-converted method for purposes of calculating dilutive earnings per share, if the Convertible Notes are dilutive during the period. In connection with the issuance of the Convertible Notes, the Company incurred certain financing costs associated directly with the issuance of the Convertible Notes. These issuance costs were deferred and are amortized to interest expense over five years using the effective interest method.
Leases	Leases The Company determines if an arrangement is a lease at inception of a contract. The Company’s leasing portfolio is comprised of operating leases primarily for general office, manufacturing, and research and development purposes. Operating lease liabilities and the corresponding right-of-use assets are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. The operating lease right-of-use asset is reduced by lease incentives included in the agreement. As the existing leases do not contain an implicit interest rate, the Company estimates its incremental borrowing rate based on information available at commencement date in determining the present value of future payments. The Company includes options to extend the lease in the lease liability and right-of-use asset when it is reasonably certain that the option will be exercised. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term. For our short-term leases, we recognize lease payments as an expense on a straight-line basis over the lease term. Capitalized Internal-Use Software Costs The Company capitalizes certain development costs incurred in connection with software development for hosted third-party software platforms used in operations. Costs incurred in the preliminary stages of development are expensed as incurred. Once software has reached the development stage, internal and external costs, if direct, are capitalized until the software is substantially complete and ready for its intended use. Capitalization ceases upon completion of all substantial testing. The Company also capitalizes costs related to specific upgrades and enhancements when it is probable the expenditures will result in additional functionality. Capitalized costs are recorded as part of other long-term assets. Maintenance and training costs are expensed as incurred. Capitalized internal-use software is amortized on a straight-line basis over the term of the related hosting arrangement and is recorded within the consolidated statements of operations based on the functional use of the software.
Recent Accounting Pronouncements	Recently Adopted Accounting Pronouncements In August 2020, the Financial Accounting Standards Board, or FASB, issued “ASU 2020-06, Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging — Contracts in Entity’s Own Equity (Subtopic 815-40).” The new guidance simplifies the number of accounting models for convertible instruments; and as a result, under the remaining available models, removes the requirement to separately account for conversion features between liability and equity components. The ASU will become effective for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years. Early adoption is permitted, but no earlier than fiscal years beginning after December 15, 2020, with adoption as of the beginning of the annual fiscal year. The Company adopted the standard, on a modified retrospective basis, on January 1, 2021, and as a result, has increased long-term debt and reduced equity by $58.5 million related to reclassification of the initial debt discount and debt issuance costs that were attributed to equity as determined by the initial accounting for the Convertible Notes. Additionally, the Company reduced its accumulated deficit by $7.5 million to reverse the cumulative impact of previously amortized debt discount costs through December 31, 2020. See to Note 9. Long-term Debt, Net for additional information.
Net Loss Per Share	Net loss per share is computed by dividing the net loss by the weighted average number of shares of common stock outstanding. Outstanding stock options, restricted stock units and warrants have not been included in the calculation of diluted net loss per share because to do so would be anti-dilutive. Accordingly, the numerator and the denominator used in computing both basic and diluted net loss per share for each period are the same.
Fair Value Measurements	The Company establishes the fair value of its assets and liabilities using the price that would be received to sell an asset or paid to transfer a financial liability in an orderly transaction between market participants at the measurement date. A fair value hierarchy is used to measure fair value. The three levels of the fair value hierarchy are as follows: •Level 1 — Quoted prices in active markets for identical assets and liabilities. •Level 2 — Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets. •Level 3 — Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable. The recorded amounts of certain financial instruments, including cash, accounts receivable, prepaid expenses and other, accounts payable and accrued liabilities, approximate fair value due to their relatively short-term maturities. The recorded amount of the Company’s long-term debt can be determined based on the estimated or actual bid prices of the Convertible Senior Notes in an over-the-counter market, which are classified as a Level 2 financial instrument.

Basis of Presentation and Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2021

The accompanying unaudited condensed consolidated financial statements reflect the accounts of the Company and its wholly-owned subsidiaries. The unaudited condensed consolidated balance sheet at December 31, 2020 has been derived from the audited consolidated financial statements at that date but does not include all information and disclosures required by generally accepted accounting principles in the United States of America (“U.S. GAAP”) for annual financial statements. These unaudited condensed consolidated financial statements and notes should be read in conjunction with the Company’s audited consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”) and U.S. GAAP for unaudited condensed consolidated financial information. Accordingly, they do not include all information and footnotes required by U.S. GAAP for complete financial statements. The accompanying unaudited condensed consolidated financial statements reflect all adjustments consisting of normal recurring adjustments which, in the opinion of management, are necessary for a fair statement of the Company’s financial position and results of its operations as of and for the periods presented.

Unless indicated otherwise, all amounts presented in financial tables are presented in thousands, except for per share and par value amounts.

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results could differ from those estimates. Given the global economic climate and additional or unforeseen effects from the COVID-19 pandemic, certain estimates are becoming more challenging, and actual results could differ materially from those estimates. The results of the Company’s operations for the three and six month period ended June 30, 2021 is not necessarily indicative of the results to be expected for the full year or for any other period.

Revenue Recognition

The Company recognizes revenue when control of the promised goods or services is transferred to its customers, in an amount that reflects the consideration expected to be received in exchange for those products and services. This process involves identifying the contract with a customer, determining the performance obligations in the contract, determining the contract price, allocating the contract price to the distinct performance obligations in the contract, and recognizing revenue when the performance obligations have been satisfied. A performance obligation is considered distinct from other obligations in a contract when it provides a benefit to the customer either on its own or together with other resources that are readily available to the customer and is separately identified in the contract. Performance obligations are considered satisfied once the Company has transferred control of a product or service to the customer, meaning the customer has the ability to use and obtain the benefit of the product or service. The Company recognizes revenue for satisfied performance obligations only when there are no uncertainties regarding payment terms or transfer of control.

The Company generates the majority of its revenue from sales of its proprietary nCounter Analysis and GeoMx DSP systems, and related consumables. Services consist of instrument service contracts and service fees for assay processing.

The Company at times may enter into collaboration agreements that generally recognizes revenue based on the timing and amount of development activities or the achievement of certain milestones. Expenses incurred in relation to research activities conducted in conjunction with our collaboration partners are recognized when the related activities have occurred and are classified in the statement of operations, generally as research and development expense.

Convertible Senior Notes

Prior to January 1, 2021, in accordance with the prior accounting guidance for debt with conversion and other options, the Company separately accounted for the liability and equity components of its 2.625% Convertible Senior Notes due 2025 (“Convertible Notes”) by allocating the proceeds between the liability component and the embedded conversion feature, or the equity component, due to the Company’s ability to settle the Convertible Notes in cash, common stock or a combination of cash and common stock, at its option. The carrying amount of the liability component was calculated by measuring the fair value of a similar liability that does not have an associated convertible feature. The allocation was performed in a manner that reflected the Company’s non-convertible debt borrowing rate for similar debt. The equity component of the Convertible Notes was recognized as a debt discount and represented the difference between the proceeds from the issuance of the Convertible Notes and the fair value of the liability of the Convertible Notes on their respective dates of issuance. In connection with the issuance of the Convertible Notes, the Company incurred certain financing costs associated directly with the issuance of the Convertible Notes. These issuance costs were deferred, and a portion of the deferred issuance costs were deemed attributable to the equity component and were allocated to additional paid-in capital.

The Company adopted “ASU 2020-06, Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging — Contracts in Entity’s Own Equity (Subtopic 815-40)” (“ASU 2020-06”) effective January 1, 2021 and, as a result, is no longer allocating proceeds between a liability and an equity component. The Company uses the if-converted method for purposes of calculating dilutive earnings per share, if the Convertible Notes are dilutive during the period. In connection with the issuance of the Convertible Notes, the Company incurred certain financing costs associated directly with the issuance of the Convertible Notes. These issuance costs were deferred and are amortized to interest expense over five years using the effective interest method.

Leases

The Company determines if an arrangement is a lease at inception of a contract. The Company’s leasing portfolio is comprised of operating leases primarily for general office, manufacturing, and research and development purposes. Operating lease liabilities and the corresponding right-of-use assets are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. The operating lease right-of-use asset is reduced by lease incentives included in the agreement. As the existing leases do not contain an implicit interest rate, the Company estimates its incremental borrowing rate based on information available at commencement date in determining the present value of future payments. The Company includes options to extend the lease in the lease liability and right-of-use asset when it is reasonably certain that the option will be exercised. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term. For our short-term leases, we recognize lease payments as an expense on a straight-line basis over the lease term.

Capitalized Internal-Use Software Costs

The Company capitalizes certain development costs incurred in connection with software development for hosted third-party software platforms used in operations. Costs incurred in the preliminary stages of development are expensed as incurred. Once software has reached the development stage, internal and external costs, if direct, are capitalized until the software is substantially complete and ready for its intended use. Capitalization ceases upon completion of all substantial testing. The Company also capitalizes costs related to specific upgrades and enhancements when it is probable the expenditures will result in additional functionality. Capitalized costs are recorded as part of other long-term assets. Maintenance and training costs are expensed as incurred. Capitalized internal-use software is amortized on a straight-line basis over the term of the related hosting arrangement and is recorded within the consolidated statements of operations based on the functional use of the software.

Recent Accounting Pronouncements

Recently Adopted Accounting Pronouncements

In August 2020, the Financial Accounting Standards Board, or FASB, issued “ASU 2020-06, Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging — Contracts in Entity’s Own Equity (Subtopic 815-40).” The new guidance simplifies the number of accounting models for convertible instruments; and as a result, under the remaining available models, removes the requirement to separately account for conversion features between liability and equity components. The ASU will become effective for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years. Early adoption is permitted, but no earlier than fiscal years beginning after December 15, 2020, with adoption as of the beginning of the annual fiscal year. The Company adopted the standard, on a modified retrospective basis, on January 1, 2021, and as a result, has increased long-term debt and reduced equity by $58.5 million related to reclassification of the initial debt discount and debt issuance costs that were attributed to equity as determined by the initial accounting for the Convertible Notes. Additionally, the Company reduced its accumulated deficit by $7.5 million to reverse the cumulative impact

of previously amortized debt discount costs through December 31, 2020. See to Note 9. Long-term Debt, Net for additional information.

Net Loss Per Share

Net loss per share is computed by dividing the net loss by the weighted average number of shares of common stock outstanding. Outstanding stock options, restricted stock units and warrants have not been included in the calculation of diluted net loss per share because to do so would be anti-dilutive. Accordingly, the numerator and the denominator used in computing both basic and diluted net loss per share for each period are the same.

Fair Value Measurements

The Company establishes the fair value of its assets and liabilities using the price that would be received to sell an asset or paid to transfer a financial liability in an orderly transaction between market participants at the measurement date. A fair value hierarchy is used to measure fair value. The three levels of the fair value hierarchy are as follows:

•Level 1 — Quoted prices in active markets for identical assets and liabilities.

•Level 2 — Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets.

•Level 3 — Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable.

The recorded amounts of certain financial instruments, including cash, accounts receivable, prepaid expenses and other, accounts payable and accrued liabilities, approximate fair value due to their relatively short-term maturities. The recorded amount of the Company’s long-term debt can be determined based on the estimated or actual bid prices of the Convertible Senior Notes in an over-the-counter market, which are classified as a Level 2 financial instrument.