OptiNose (OPTN) 10-Q 14 May 24 2024 Q1 Quarterly report Financial data

Cover

Cover - shares	3 Months Ended
	Mar. 31, 2024	May 01, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	001-38241
Entity Registrant Name	OPTINOSE, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	42-1771610
Entity Address, Address Line One	1020 Stony Hill Road
Entity Address, Address Line Two	Suite 300
Entity Address, City or Town	Yardley
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	19067
City Area Code	267
Local Phone Number	364-3500
Title of 12(b) Security	Common stock, par value $0.001 per share
Trading Symbol	OPTN
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		113,038,726
Entity Central Index Key	0001494650
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Amendment flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 51,644	$ 73,684
Accounts receivable, net	14,227	19,926
Inventory	10,315	8,052
Prepaid expenses and other current assets	4,936	3,671
Total current assets	81,122	105,333
Property and equipment, net	754	815
Other assets	1,831	1,581
Total assets	83,707	107,729
Current liabilities:
Accounts payable	1,912	3,886
Accrued expenses and other current liabilities	30,793	42,411
Short term debt, net	0	130,227
Total current liabilities	32,705	176,524
Long term debt, net	130,653	0
Warrant liability	18,500	17,200
Other liabilities	1,065	611
Total liabilities	182,923	194,335
Stockholders' deficit
Preferred stock, no par value; 5,000,000 shares authorized; no shares issued in 2024 or 2023	0	0
Common stock, $0.001 par value; 350,000,000 shares authorized; 113,038,726 and 112,399,495 shares issued and outstanding at March 31, 2024 and December 31, 2023, respectively.	113	112
Additional paid-in capital	635,198	633,742
Accumulated deficit	(734,443)	(720,376)
Accumulated other comprehensive loss	(84)	(84)
Total stockholders' deficit	(99,216)	(86,606)
Total liabilities and stockholders' deficit	$ 83,707	$ 107,729

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Preferred stock, shares authorized ( in shares)	5,000,000	5,000,000
Preferred stock, shares issued ( in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	350,000,000	350,000,000
Common stock, shares issued (in shares)	113,038,726	112,399,495
Common stock, shares outstanding (in shares)	113,038,726	112,399,495

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Total revenues	$ 14,880	$ 11,846
Costs and expenses:
Cost of product sales	1,231	1,706
Research and development	1,206	1,785
Selling, general and administrative	20,518	22,723
Total costs and expenses	22,955	26,214
Loss from operations	(8,075)	(14,368)
Other (income) expense:
Unrealized loss on fair value of warrants	1,300	510
Interest income	(296)	(705)
Interest expense	4,970	4,672
Foreign currency loss	18	2
Net loss	$ (14,067)	$ (18,847)
Net loss per share of common stock, basic (in dollars per share)	$ (0.12)	$ (0.17)
Net loss per share of common stock, diluted (in dollars per share)	$ (0.12)	$ (0.17)
Weighted average common shares outstanding, basic (in shares)	112,594,852	111,774,425
Weighted average common shares outstanding, diluted (in shares)	112,594,852	111,774,425
Revenue from Contract with Customer, Product and Service [Extensible Enumeration]	Net product revenues	Net product revenues
Net product revenues
Total revenues	$ 14,880	$ 11,846

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net loss	$ (14,067)	$ (18,847)
Other comprehensive income (loss):
Foreign currency translation adjustment	0	0
Comprehensive loss	$ (14,067)	$ (18,847)

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Deficit - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2022	$ (56,624)	$ 111	$ 628,242	$ (684,893)	$ (84)
Beginning balance (in shares) at Dec. 31, 2022		111,492,791
Increase (Decrease) in Stockholders' Equity
Stock compensation expense	1,520		1,520
Vesting of restricted stock units	1	$ 1
Vesting of restricted stock units (in shares)		343,406
Issuance of common stock under employee stock purchase plan	164		164
Issuance of common stock under employee stock purchase plan (in shares)		119,727
Foreign currency translation adjustment	0
Net loss	(18,847)			(18,847)
Ending balance at Mar. 31, 2023	(73,786)	$ 112	629,926	(703,740)	(84)
Ending balance (in shares) at Mar. 31, 2023		111,955,924
Beginning balance at Dec. 31, 2023	$ (86,606)	$ 112	633,742	(720,376)	(84)
Beginning balance (in shares) at Dec. 31, 2023	112,399,495	112,399,495
Increase (Decrease) in Stockholders' Equity
Stock compensation expense	$ 1,456		1,456
Vesting of restricted stock units	1	$ 1
Vesting of restricted stock units (in shares)		478,520
Issuance of common stock under employee stock purchase plan (in shares)		160,711
Foreign currency translation adjustment	0
Net loss	(14,067)			(14,067)
Ending balance at Mar. 31, 2024	$ (99,216)	$ 113	$ 635,198	$ (734,443)	$ (84)
Ending balance (in shares) at Mar. 31, 2024	113,038,726	113,038,726

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating activities:
Net loss	$ (14,067)	$ (18,847)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation and amortization	83	72
Stock-based compensation	1,456	1,523
Change in fair value of warrant liability	1,300	510
Amortization of debt discount and issuance costs	419	405
Changes in operating assets and liabilities:
Accounts receivable	5,590	16,953
Prepaid expenses and other assets	(1,048)	874
Inventory	(2,263)	1,118
Accounts payable	(1,973)	953
Accrued expenses and other liabilities	(11,522)	(14,039)
Cash used in operating activities	(22,025)	(10,478)
Investing activities:
Purchases of property and equipment	(22)	0
Cash used in investing activities	(22)	0
Financing activities:
Proceeds from issuance of common stock under employee stock purchase plan	0	162
Cash paid for financing costs	7	0
Cash provided by financing activities	7	162
Net decrease in cash, cash equivalents and restricted cash	(22,040)	(10,316)
Cash, cash equivalents and restricted cash at beginning of period	73,684	94,244
Cash, cash equivalents and restricted cash at end of period	51,644	83,928
Supplemental disclosure of cash flow information:
Cash paid for interest	9,218	4,255
Supplemental disclosure of noncash activities:
Recognition of right-of-use assets and lease liabilities	$ 359	$ 37

Organization and Description of

Organization and Description of Business	3 Months Ended
	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Description of Business	Organization and Description of Business OptiNose, Inc. (the Company) was incorporated in Delaware in May 2010 (inception) and has facilities in Yardley, Pennsylvania and Ewing, New Jersey. The Company's predecessor entity, OptiNose AS, was formed under the laws of Norway in September 2000. In 2010, OptiNose AS became a wholly-owned subsidiary of the Company as part of an internal reorganization. Optinose AS was liquidated in October 2023. During 2022, the Company's board of directors also approved the liquidation of Optinose UK, which is expected to be completed in 2024, in order to simplify the corporate structure.

Liquidity

Liquidity	3 Months Ended
	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Liquidity	Liquidity Since inception, the Company's operations have focused on organization and staffing, business planning, raising capital, establishing an intellectual property portfolio, conducting preclinical studies and clinical trials, pursuing regulatory approvals and commercializing XHANCE in the US. As of March 31, 2024, the Company had cash and cash equivalents of $51,644 and working capital of $48,417. On May 10, 2024, the Company completed a registered direct offering pursuant to which it issued an aggregate of 31,800,000 shares of common stock at a purchase price of $1.00 per share and, in lieu of shares of common stock to certain investors, pre-funded warrants to purchase an aggregate of 23,700,000 shares of common stock at a price of $0.999 per pre-funded warrant, which represents the per share offering price for common stock less the $0.0001 per share exercise price for each such pre-funded warrant. The aggregate net proceeds from the offering are expected to be approximately $55,000. The Company’s continuation as a going concern is dependent on its ability to maintain compliance with the covenants under the A&R Note Purchase Agreement (Note 8) and its ability to generate sufficient cash flows from operations or other sources to meet its obligations as they come due. The Company follows the provisions of Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) Topic 205-40, Presentation of Financial Statements—Going Concern, which requires management to assess the Company’s ability to continue as a going concern within one year after the date the financial statements are issued. At December 31, 2023, Management identified conditions and events that raised substantial doubt about the Company’s ability to continue as a going concern as management believed it was unlikely, without additional capital, that the Company would maintain compliance with certain covenants in the A&R Note Purchase Agreement in which case the lender could accelerate all amounts due under the agreement. As noted above, the Company completed a registered direct offering on May 10, 2024. The aggregate net proceeds from the offering are expected to be approximately $55,000. The Company believes that its cash and cash equivalents on hand as of March 31, 2024, along with the proceeds from the offering, will be sufficient to fund it operations and debt service obligations and maintain compliance with the liquidity covenant under the A&R Note Purchase Agreement for at least next twelve months from the issuance of these financial statements. The Company will likely require additional capital in the future secured through equity or debt financings, partnerships, collaborations, or other sources in order to meet its debt service obligations, including repayment, under the Company's outstanding senior secured notes, and to carry out the Company's planned development and commercial activities. The terms of the outstanding senior secured notes, including applicable covenants, are described in Note 8 . If additional capital is not obtained when required, the Company may need to delay or curtail its operations until additional funding is received.

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	Basis of Presentation and Summary of Significant Accounting Policies The accompanying unaudited interim consolidated financial statements have been prepared in conformity with US generally accepted accounting principles (GAAP). Any reference in these notes to applicable guidance is meant to refer to GAAP as found in the Accounting Standards Codification (ASC) and Accounting Standards Updates (ASU) of the Financial Accounting Standards Board (FASB). In the opinion of management, the accompanying unaudited interim financial statements include all normal and recurring adjustments (which consist primarily of accruals and estimates that impact the financial statements) considered necessary to present fairly the Company's financial position as of March 31, 2024 and its results of operations for the three months ended March 31, 2024 and 2023 and cash flows for the three months ended March 31, 2024 and 2023. Operating results for the three months ended March 31, 2024 are not necessarily indicative of the results that may be expected for the year ending December 31, 2024. The unaudited interim financial statements, presented herein, do not contain the required disclosures under GAAP for annual financial statements. The accompanying unaudited interim financial statements should be read in conjunction with the annual audited financial statements and related notes as of and for the year ended December 31, 2023 contained in the Company’s annual report on Form 10-K for the year ended December 31, 2023 , filed with the SEC on March 7, 2024. Use of estimates The preparation of the unaudited interim consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the unaudited interim consolidated financial statements and reported amounts of expenses during the reporting period. Due to the uncertainty of factors surrounding the estimates or judgments used in the preparation of the unaudited interim consolidated financial statements, actual results may materially vary from these estimates. Estimates and assumptions are periodically reviewed and the effects of revisions are reflected in the unaudited interim consolidated financial statements in the period they are determined to be necessary. Concentration of credit risk Financial instruments that potentially subject the Company to concentrations of credit risk are primarily cash and accounts receivable. The Company generally invests its cash in deposits with high credit quality financial institutions. Additionally, the Company performs periodic evaluations of the relative credit standing of these financial institutions. Customer and supplier concentration The Company has exposure to credit risk in accounts receivable from sales of product. XHANCE is sold to wholesale pharmaceutical distributors and preferred pharmacy network (PPN) partners, who, in turn, sell XHANCE to pharmacies, hospitals and other customers. Five customers represented approximately 86% and 58% of the Company's accounts receivable at March 31, 2024 and 2023, respectively. Five customers represented approximately 66% and 39% of the Company's net product sales for the three months ended March 31, 2024 and 2023, respectively. The Company purchases XHANCE and its components from several third-party suppliers and manufacturing partners, certain of which are only available through a single source. Although the Company could obtain each of these components from alternative third-party suppliers, it would need to qualify and obtain FDA approval for another supplier as a source for each such component. Fair value of financial instruments The Company measures certain assets and liabilities at fair value, which is defined as the price that would be received to sell an asset or paid to transfer a liability (the exit price) in an orderly transaction between market participants at the measurement date. The FASB accounting guidance outlines a valuation framework and creates a fair value hierarchy in order to increase the consistency and comparability of fair value measurements and the related disclosures. In determining fair value, the Company uses quoted prices and observable inputs. Observable inputs are inputs that market participants would use in pricing the asset or liability based on market data obtained from independent sources. The fair value hierarchy is broken down into three levels based on the source of the inputs as follows: • Level 1 — Valuations based on unadjusted quoted prices in active markets for identical assets or liabilities. • Level 2 — Valuations based on observable inputs (other than Level 1 quoted prices), such as quoted prices in active markets for similar assets or liabilities, quoted prices in markets that are not active for identical or similar assets or liabilities, or other inputs that are observable or can be corroborated by observable market data. • Level 3 — Valuations based on inputs that are unobservable and models that are significant to the overall fair value measurement. At March 31, 2024 and December 31, 2023, the Company's financial instruments included cash and cash equivalents, accounts receivable, accounts payable, accrued expenses and certain liability classified warrants. The carrying amounts reported in the Company's financial statements for cash and cash equivalents, accounts receivable, accounts payable and accrued expenses approximates their respective fair values because of the short-term nature of these instruments. In addition, at March 31, 2024, the Company believed the carrying value of debt approximates fair value as the interest rates were reflective of the rate the Company could obtain on debt with similar terms and conditions. At March 31, 2024, there were no financial assets or liabilities measured at fair value on a recurring basis other than the liability classified warrants. In November 2022, the Company issued warrants in connection with a public offering. Pursuant to the terms of the warrant agreement, the Company could be required to settle the warrants in cash in the event of an acquisition of the Company and, as a result, the warrants are required to be measured at fair value and reported as liability in the consolidated balance sheet. The Company recorded the fair value of the warrants upon issuance using a Monte Carlo simulation and is required to revalue the warrants at each reporting date with any changes in fair value recorded on our statement of operations. The valuation of the warrants is considered under Level 3 of the fair value hierarchy due to the need to use assumptions in the valuation that are both significant to the fair value measurement and unobservable. The change in the fair value of the Level 3 warrants liabilities is reflected in the statement of operations for the three months ended March 31, 2024. Net product revenues The Company accounts for revenue in accordance with ASC Topic 606, Revenue from Contracts with Customers (ASC 606), which the Company adopted on January 1, 2018. The Company recognizes revenue from XHANCE sales at the point customers obtain control of the product, which generally occurs upon delivery. The transaction price that is recognized as revenue for products includes an estimate of variable consideration. The Company’s estimates of variable consideration and determination of whether to include estimated amounts in the transaction price are based largely on an assessment of its anticipated performance and all information (historical, current and forecasted) that is reasonably available. The components of the Company’s variable consideration include the following: Provider Chargebacks and Discounts. Chargebacks for fees and discounts to providers represent the estimated obligations resulting from contractual commitments to sell products to qualified healthcare providers at prices lower than the list prices charged to customers who directly purchase the product from the Company. Customers charge the Company for the difference between what they pay for the product and the ultimate selling price to the qualified healthcare providers. These components of variable consideration are established in the same period that the related revenue is recognized, resulting in a reduction of product revenue and accounts receivable. Trade Discounts and Allowances. The Company generally provides customers with discounts that include incentive fees which are explicitly stated in the Company’s contracts. These discounts are recorded as a reduction of revenue and accounts receivable in the period in which the related product revenue is recognized. Product Returns. Consistent with industry practice, the Company has a product returns policy that provides customers a right of return for product purchased within a specified period prior to and subsequent to the product’s expiration date. The Company estimates the amount of its product that may be returned and presents this amount as a reduction of revenue in the period the related product revenue is recognized, in addition to establishing a liability. The Company considers several factors in the estimation process, including expiration dates of product shipped to customers, inventory levels within the distribution channel, product shelf life, prescription trends and other relevant factors. Government Rebates. The Company is subject to discount obligations under state Medicaid programs and Medicare. Reserves related to these discount obligations are recorded in the same period the related revenue is recognized, resulting in a reduction of product revenue and the establishment of a current liability. The Company’s liability for these rebates consists of estimates of claims for the current quarter and estimated future claims that will be made for product that has been recognized as revenue but remains in the distribution channel inventories at the end of the reporting period. Payor Rebates. The Company contracts with certain third-party payors, primarily health insurance companies and pharmacy benefit managers, for the payment of rebates with respect to utilization of its products. These rebates are based on contractual percentages applied to the amount of product prescribed to patients who are covered by the plan or the organization with which it contracts. The Company estimates these rebates and records such estimates in the same period the related revenue is recognized, resulting in a reduction of product revenue and the establishment of a current liability. Patient Assistance. Other programs that the Company offers include voluntary co-pay patient assistance programs intended to provide financial assistance to eligible patients with prescription drug co-payments required by payors and coupon programs for cash payors. The calculation of the current liability for this assistance is based on an estimate of claims and the cost per claim that the Company expects to receive associated with product that has been recognized as revenue but remains in the distribution channel inventories at the end of each reporting period. Distribution and Other Fees . The Company pays distribution and other fees to certain customers in connection with the sales of its products. The Company records distribution and other fees paid to its customers as a reduction of revenue, unless the payment is for a distinct good or service from the customer and the Company can reasonably estimate the fair value of the goods or services received. If both conditions are met, the Company records the consideration paid to the customer as an operating expense. These costs are typically known at the time of sale, resulting in minimal adjustments subsequent to the period of sale Net income (loss) per common share Basic net income (loss) per common share is determined by dividing net income (loss) applicable to common stockholders by the weighted average common shares outstanding during the period. For the three months ended March 31, 2024 and 2023, the outstanding common stock options, restricted stock units, common stock warrants and shares to be issued under the Company's 2017 Employee Stock Purchase Plan have been excluded from the calculation of diluted net loss per share because their effect would be anti-dilutive. Therefore, the weighted average shares used to calculate both basic and diluted net loss per share are the same. Diluted net loss per common share for the periods presented do not reflect the following potential common shares, as the effect would be antidilutive: March 31, 2024 2023 Stock options 9,289,484 10,489,593 Restricted stock units 4,927,069 2,691,174 Common stock warrants 32,768,000 32,768,000 Total 46,984,553 45,948,767 Income taxes In accordance with ASC 270, Interim Reporting , and ASC 740, Income Taxes , the Company is required at the end of each interim period to determine the best estimate of its annual effective tax rate and then apply that rate in providing for income taxes on a current year-to-date (interim period) basis. For the three months ended March 31, 2024 and 2023, the Company recorded no tax expense or benefit due to the expected current year loss and its historical losses. As of March 31, 2024 and December 31, 2023, the Company concluded that a full valuation allowance would be necessary for all of its net deferred tax assets. The Company had no amounts recorded for uncertain tax positions, interest or penalties in the accompanying consolidated financial statements. Recent accounting pronouncements In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. FASB is issuing the amendments in this Update to enhance the transparency and decision usefulness of income tax disclosures. Investors, lenders, creditors, and other allocators of capital (collectively, “investors”) indicated that the existing income tax disclosures should be enhanced to provide information to better assess how an entity’s operations and related tax risks and tax planning and operational opportunities affect its tax rate and prospects for future cash flows. Investors currently rely on the rate reconciliation table and other disclosures, including total income taxes paid, to evaluate income tax risks and opportunities. While investors find these disclosures helpful, they suggested possible enhancements to better (1) understand an entity’s exposure to potential changes in jurisdictional tax legislation and the ensuing risks and opportunities, (2) assess income tax information that affects cash flow forecasts and capital allocation decisions, and (3) identify potential opportunities to increase future cash flows. The amendments in this Update address investor requests for more transparency about income tax information through improvements to income tax disclosures primarily related to the rate reconciliation and income taxes paid information. This Update also includes certain other amendments to improve the effectiveness of income tax disclosures. The new standard is effective for annual periods beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating ASU No. 2023-09 and its impact on results of operations, financial position and cash flows and related disclosures.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2024
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Assets and Liabilities Measured at Fair Value on a Recurring Basis The Company applies the guidance in ASC 820, Fair Value Measurements , to account for financial assets and liabilities measured on a recurring basis. Fair value is measured as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. As such, fair value is a market-based measurement that is determined based on assumptions that market participants would use in pricing an asset or liability. The Company uses a fair value hierarchy, which distinguishes between assumptions based on market data (observable inputs) and an entity's own assumptions (unobservable inputs). The guidance requires that fair value measurements be classified and disclosed in one of the following 3 categories: Level l: Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities; Level 2: Quoted prices in markets that are not active or inputs which are observable, either directly or indirectly, for substantially the full term of the asset or liability; and Level 3: Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity). Determining which category an asset or liability falls within the hierarchy requires significant judgment. The Company evaluates its hierarchy disclosures each reporting period. There were no transfers between Level I, 2 and 3 during the three months ended March 31, 2024. The table below presents the liabilities (in thousands) measured and recorded in the financial statements at fair value on a recurring basis at March 31, 2024 categorized by the level of inputs used in the valuation of each liability. March 31, 2024 Total Level 1 Level 2 Level 3 Liabilities Warrant Liability $ 18,500 $ — $ — $ 18,500 Total Liabilities $ 18,500 $ — $ — $ 18,500 December 31, 2023 Liabilities Warrant Liability $ 17,200 $ — $ — $ 17,200 Total Liabilities $ 17,200 $ — $ — $ 17,200 Changes in Level 3 Liabilities Measured at Fair Value on a Recurring Basis Warrant Liability The reconciliation of the Company's warrant liability measured at fair value on a recurring basis using unobservable inputs (Level 3) is as follows (in thousands): Warrant Liability Balance, December 31, 2023 $ 17,200 Warrants issued — Change in fair value of liability 1,300 Balance, March 31, 2024 $ 18,500 Assumptions Used in Determining Fair Value of Liability-Classified Warrants The Company issued warrants to purchase 30,268,000 shares of Common Stock at a public offering price of $0.01 per warrant (the Warrants). Each Warrant has an exercise price of $2.565 per share of common stock and is exercisable until the expiration date, which is the fifth anniversary of the date of issuance (November 23, 2027). After such date, any unexercised Warrants will expire and have no further value. If the Company issues or sells, or is deemed pursuant to the terms of the Warrants to have issued or sold, any shares of common stock (which includes, among other things, options and securities convertible into shares of common stock), subject to certain exceptions and excluding certain issuances defined in the Warrants as "excluded issuances, for a price per share less than the exercise price of the Warrants in effect immediately prior to such issuance or sale or deemed issuance or sale (such event, a dilutive issuance), then immediately after such dilutive issuance the exercise price then in effect of the Warrants shall be reduced to the price of the shares of common stock issued or sold or deemed to be issued or sold in the dilutive issuance in the manner set forth in the Warrant. A holder of Warrants will not have the right to exercise any portion of a Warrant if the holder (together with its affiliates) would beneficially own in excess of 4.99% (or on election of such holder, prior to the issuance of any Warrants, 9.99%) of the number of shares of Common Stock outstanding immediately after giving effect to the exercise, as such percentage ownership is determined in accordance with the terms of the Warrants; provided, however, such holder may increase or decrease such percentage to any other percentage not in excess of 19.00%, provided that any increase in such percentage shall not be effective until 61 days after such notice is delivered to the Company. Pursuant to the terms of the Warrant, the Company could be required to settle the Warrants in cash in the event of a "fundamental transaction" as defined in the Warrant (which includes, among other things, an acquisition of the Company) and, as a result, the Warrants are required to be measured at fair value and reported as liability in the consolidated balance sheet. The Company utilizes a Monte Carlo simulation valuation model which incorporates assumptions as to the stock price volatility, the expected life of the warrants, a risk-free interest rate, as well as timing and probability of equity financing. The Company values the warrant liability at each reporting period, with changes in fair value recognized in the consolidated statements of operations. The estimated fair value of the warrant liability is determined using Level 3 inputs. The inputs and values were as follows: March 31, 2024 December 31, 2023 Stock price $ 1.46 $ 1.29 Strike price $ 2.57 $ 2.57 Expected volatility 55.0 % 60.0 % Risk-free interest rate 4.2 % 3.9 % Expected dividend yield — % — % Expected life (years) 3.6 3.9 Fair value per warrant $ 0.61 $ 0.57 On May 10, 2024, the Company completed a registered direct offering which resulted in the exercise price of the Warrants being reduced from $2.565 to $1.00 (which was the offering price of each share sold in the registered direct offering) pursuant to the anti-dilution price protection provisions of such Warrants. All other terms of the Warrants remain unchanged.

Inventory

Inventory	3 Months Ended
	Mar. 31, 2024
Inventory Disclosure [Abstract]
Inventory	Inventory Inventory consisted of the following: March 31, 2024 December 31, 2023 Raw materials $ 2,580 $ 2,400 Work-in-process 4,966 3,281 Finished goods 2,769 2,371 Total inventory $ 10,315 $ 8,052

Property and Equipment

Property and Equipment	3 Months Ended
	Mar. 31, 2024
Property, Plant and Equipment [Abstract]
Property and Equipment	Property and Equipment Property and equipment, net, consisted of the following: March 31, 2024 December 31, 2023 Computer equipment and software $ 1,465 $ 1,443 Furniture and fixtures 366 366 Machinery and equipment 3,146 3,146 Leasehold improvements 609 609 Construction in process 115 115 5,701 5,679 Less: accumulated depreciation (4,947) (4,864) $ 754 $ 815 Depreciation expense was $83 and $72 for the three months ended March 31, 2024 and 2023, respectively.

Accrued Expenses and Other Curr

Accrued Expenses and Other Current Liabilities	3 Months Ended
	Mar. 31, 2024
Payables and Accruals [Abstract]
Accrued Expenses and Other Current Liabilities	Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities consisted of: March 31, 2024 December 31, 2023 Accrued expenses: Product revenue allowances $ 16,751 $ 20,145 Selling, general and administrative expenses 4,868 6,229 Research and development expenses 334 644 Payroll expenses 5,280 6,801 Accrued interest — 4,666 Other 2,835 3,015 Total accrued expenses $ 30,068 $ 41,500 Other current liabilities: Lease liability $ 725 $ 911 Total other current liabilities 725 911 Total accrued expenses and other current liabilities $ 30,793 $ 42,411

Debt

Debt	3 Months Ended
	Mar. 31, 2024
Debt Disclosure [Abstract]
Debt	Debt On September 12, 2019 (the Closing Date), the Company entered into a Note Purchase Agreement with funds managed by Pharmakon Advisors, LP (Pharmakon), the investment manager of BioPharma Credit Funds (BioPharma). The Note Purchase Agreement provided the Company with $130,000 in debt financing, of which $80,000 of senior secured notes (the Pharmakon Senior Secured Notes) was issued on the Closing Date, $30,000 was issued on February 13, 2020 and $20,000 was issued on December 1, 2020. On November 23, 2022, the Company amended and restated the Note Purchase Agreement, initially entered into on September 12, 2019 and amended through November 9, 2022, among the Company, its subsidiaries, OptiNose US, Inc., OptiNose AS and OptiNose UK, Ltd., and BioPharma Credit PLC, as collateral agent, and the purchasers party thereto from time to time (the A&R Note Purchase Agreement). Pursuant to the A&R Note Purchase Agreement, certain modifications to the affirmative and negative covenants, events of default and other provisions were made, including, without limitation, (i) the requirement for the Company to deliver quarterly and annual financial statements that, commencing with the Company's consolidated financial statements for the year ending December 31, 2023 and subject to certain exceptions, are not subject to a “going concern” statement (the Going Concern Covenant) and (ii) the removal of certain exceptions to the negative covenants which previously permitted the Company to enter into certain transactions without the consent of the holders of the Pharmakon Senior Secured Notes, including permitted acquisitions, swap contracts, convertible bonds and revolving credit facilities. The financial covenants requiring the Company to achieve minimum trailing twelve-month consolidated XHANCE net product sales and royalties were amended to be pushed back to March 31, 2024. The A&R Note Purchase Agreement extended the maturity date of the Pharmakon Senior Secured Notes from September 12, 2024 to June 30, 2027 (New Maturity Date), extended the interest-only period from September 2023 to September 2025, after which principal repayments will commence starting on September 30, 2025 and will be made in eight equal quarterly installments of principal and interest through the New Maturity Date. As part of the A&R Note Purchase Agreement the Pharmakon Senior Secured Notes now bear an amended interest rate through the New Maturity Date equal to the 3-month Secured Overnight Financing Rate (subject to a 2.50% floor), determined as of the date that is two business days prior to the commencement of each quarter, plus 8.50% per annum, which interest rate shall be increased by an additional 3.00% per annum upon the occurrence and during the continuation of any event of default. The effective interest rate as of March 31, 2024 is 14.80%. As an inducement for the holders of the Pharmakon Senior Secured Notes to enter into the A&R Note Purchase Agreement, the Company was required to pay the holders of the Pharmakon Senior Secured Notes an amendment fee of $3,900 (representing 3.00% of the then outstanding principal balance of such notes) due on the New Maturity Date or the earlier repayment of the Pharmakon Senior Secured Notes, which amendment fee shall reduced to $2,600 in the event that the Company repays the Pharmakon Senior Secured Notes in full on or after the one-year anniversary of the date of the A&R Note Purchase Agreement and prior to second anniversary of the date of the A&R Note Purchase Agreement. Additionally, the $1,300 fee payable under the Fourth Amendment to the Note Purchase Agreement that the Company entered into on November 9, 2022 will be credited against the amendment fee payable in connection with the A&R Note Purchase Agreement. On March 5, 2024, the Company entered into a first amendment and waiver (the First Amendment) to the A&R note Purchase Agreement. The First Amendment provided for a waiver of Going Concern Covenant for the audited financial statements for the year ended December 31, 2023 and unaudited quarterly financial statements for the quarter ending March 31, 2024. On March 8, 2024, the Company entered into a second amendment (the Second Amendment) to the A&R Note Purchase Agreement. Pursuant to the Second Amendment, the financial covenants requiring the Company to achieve minimum trailing twelve-month consolidated XHANCE net product sales and royalties was modified as follows (amounts in thousands): Trailing Twelve-Months Ending As Revised Pursuant to Second Amendment March 31, 2024 $70,000 June 30, 2024 $70,000 September 30, 2024 $72,500 December 31, 2024 $75,000 March 31, 2025 $80,000 June 30, 2025 $87,500 September 30, 2025 $95,000 December 31, 2025 $105,500 March 31, 2026 $120,000 June 30, 2026 $130,000 September 30, 2026 $145,000 December 31, 2026 $150,000 March 31, 2027 $155,000 June 30, 2027 $160,000 In addition, the "make-whole" premium payment due in connection with any principal prepayments (whether mandatory or voluntary) was modified as part of the Second Amendment to provide that the Company will be required to pay a make-whole premium in the amount of (i) for any prepayment occurring up to and including November 21, 2024 (which represents the 24th-month anniversary of the effective date of the A&R Note Purchase Agreement), the sum of all interest that would have accrued on the principal amount of the notes prepaid or required to be prepaid from the date of such prepayment through and including the 18th-month anniversary of such prepayment date; and (b) for any prepayment occurring after November 21, 2024 (which represents the 24th-month anniversary of the effective date of the A&R Note Purchase Agreement) but prior to May 21, 2026 (which represents the 42nd-month anniversary of the effective date of the A&R Note Purchase Agreement), the sum of all interest that would have accrued on the principal amount of the notes prepaid or required to be prepaid from the date of such prepayment through and including May 21, 2026 (which represents the 42nd-month anniversary of the effective date of the A&R Note Purchase Agreement); provided, however, that in no event shall all make-whole amounts payable by the Company exceed $24,000 in the aggregate. On May 8, 2024, the Company entered into a third amendment (the Third Amendment) to the A&R Note Purchase Agreement. The Third Amendment provided for a further waiver of the Going Concern Covenant for the Company’s quarterly and annual financial statements through the fiscal quarter ending September 30, 2025. The Going Concern Covenant will continue to apply to the Company’s financial statements for the fiscal year ending December 31, 2025 and each fiscal quarter and fiscal year thereafter. In addition, pursuant to the Third Amendment the minimum amount of cash and cash equivalents that the Company is required to maintain at all times under the A&R Note Purchase Agreement (the Liquidity Covenant) will be reduced from $30,000 to $20,000 following the date of the first quarterly payment of principal due on September 30, 2025. As part of the Third Amendment, the Company issued an aggregate of 4,680,000 shares of common stock to the holders of the Pharmakon Senior Secured Notes in satisfaction of $4,680 of outstanding amendment and waiver fees owed under the A&R Note Purchase Agreement for prior amendments and waivers, which shares were calculated based on the offering price of each share of common stock sold in the registered direct offering completed on May 10, 2024. Additionally, the common stock warrants, dated November 18, 2021, issued to the holders of the Pharmakon Senior Secured Notes for the purchase of an aggregate of 2,500,000 shares of Company common stock (the Pharmakon Warrants) were amended to (i) reduce the exercise price of the Pharmakon Warrants from $1.60 per share to $1.00, which is the offering price of each share of common stock sold in the registered direct offering completed by the Company on May 10, 2024, and (ii) extend the expiration date of the Pharmakon Warrants from November 18, 2024 to November 18, 2026. The Pharmakon Senior Secured Notes are secured by a pledge of substantially all of the assets of the Company and the Guarantors and the A&R Note Purchase Agreement contains affirmative and negative covenants customary for financings of this type, including limitations on the Company’s and its subsidiaries’ ability, among other things, to incur additional debt, grant or permit additional liens, make investments and acquisitions, merge or consolidate with others, dispose of assets, pay dividends and distributions, repay junior indebtedness, incur a material adverse change and enter into affiliate transactions, in each case, subject to certain exceptions. In addition, the A&R Note Purchase Agreement contains financial covenants requiring the Company to maintain certain minimum trailing twelve-month consolidated XHANCE net sales and royalties, tested on a quarterly basis, and to maintain compliance with the Liquidity Covenant. As of March 31, 2024, the Company was in compliance with the covenants. The A&R Note Purchase Agreement also includes events of default customary for financings of this type, in certain cases subject to customary periods to cure, following which the holders of the Pharmakon Senior Secured Notes may accelerate all amounts outstanding under such notes. The Company recorded interest expense of $4,970 and $4,672 during the three months ended March 31, 2024 and 2023, respectively. Interest expense included total coupon interest and the amortization of debt issuance costs. The Pharmakon debt balance is comprised of the following: March 31, 2024 December 31, 2023 Face amount $ 130,000 $ 130,000 Front end fees (479) (518) Debt issuance costs (4,848) (5,235) Back end fees 5,980 5,980 Debt, net $ 130,653 $ 130,227 The Company classified the Pharmakon debt as a current liability at December 31, 2023 as it believed that, without additional capital, it was unlikely to comply with certain covenants in the A&R Note Purchase Agreement. The Pharmakon debt has been classified as long-term at March 31, 2024 as principal payments do not commence until the third quarter of 2025 and with the additional capital received from the May 10, 2024 registered direct offering ( Note 2

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and ContingenciesThe Company has a manufacturing agreement (the Hikma Agreement) for the purchase of product with Hikma Pharmaceuticals USA Inc. (Hikma) which expires on December 31, 2026. Either the Company or Hikma may terminate the Hikma Agreement for uncured material breach by or insolvency of the other party. Additionally, the Company may terminate the Hikma Agreement if, among other things, any intellectual property of any third party is reasonably alleged by a third party to be infringed, misappropriated or otherwise violated by the manufacture, import, use, sale or distribution of XHANCE or if any regulatory authority requires the Company to cease production of the sale of XHANCE. As part of the Hikma Agreement, the Company has agreed to make minimum purchases of product of $1,688 in 2024, and $2,251 million in both 2025 and 2026. If the Company fails to achieve the minimum purchase commitments, the Company must pay Hikma 50% of the amount of any shortfall and must reimburse Hikma for certain non-cancellable costs and expenses. The Company's minimum purchase commitments are subject to certain exceptions and reductions. The Company has made $428 in purchases during the three months ended March 31, 2024 under the Hikma Agreement.

Employee Benefit Plans

Employee Benefit Plans	3 Months Ended
	Mar. 31, 2024
Retirement Benefits [Abstract]
Employee Benefit Plans	Employee Benefit Plans For US employees, the Company maintains a defined contribution 401(k) retirement plan. As of March 31, 2024 and 2023, $183 and $61 respectively, were recorded in accrued liabilities related to the Company match. The Company's contributions are made in cash.

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2024
Equity [Abstract]
Stockholders' Equity	Stockholders' Equity As of March 31, 2024, the Company had the following warrants outstanding to purchase shares of Common Stock: Number of warrants Classification Exercise Price Per Share Expiration Date 2,500,000 Equity $1.60 November 18, 2024 30,268,000 Liability $2.565 November 23, 2027 On May 10, 2024, the Company completed a registered direct offering pursuant to which it issued an aggregate of 31,800,000 shares of common stock at a purchase price of $1.00 per share and, in lieu of shares of common stock to certain investors, pre-funded warrants to purchase an aggregate of 23,700,000 shares of common stock at a price of $0.999 per pre-funded warrant, which represents the per share offering price for common stock less the $0.0001 per share exercise price for each such pre-funded warrant. Upon the completion of the registered direct offering on May 10, 2024, the exercise price of the the 30,268,000 liability classified warrants was reduced from $2.565 to $1.00 (which was the offering price of each share sold in the registered direct offering) pursuant to the anti-dilution price protection provisions of such warrants. All other terms of the liability classified warrants remained unchanged. Additionally, on May 10, 2024, pursuant to the Third Amendment to the A&R Note Purchase Agreement, the 2,500,000 equity classified common stock warrants listed above were amended to reduce the exercise price from $1.60 per share to $1.00 per share, and to extend the expiration date from November 18, 2024 to November 18. 2026.

Stock-based Compensation

Stock-based Compensation	3 Months Ended
	Mar. 31, 2024
Share-Based Payment Arrangement [Abstract]
Stock-based Compensation	Stock-based Compensation The Company recorded total stock-based compensation expense related to stock options, restricted stock units and it's employee stock purchase plan awarded under the Company's 2010 Stock Incentive Plan, as amended and restated effective as of October 12, 20217 (the 2010 Plan), 2017 Employee Stock Purchase Plan (2017 Plan) and grants made pursuant to the Nasdaq inducement grant exception in accordance with Nasdaq Listing Rule 5635(c)(4) in the following expense categories in the accompanying consolidated statements of operations as follows: Three Months Ended March 31, 2024 2023 Cost of product sales $ 17 $ 6 Research and development 57 155 General and administrative 1,382 1,361 $ 1,456 $ 1,522 Stock Options The Company issues stock-based awards pursuant to the 2010 Plan. The Company has issued service-based, performance-based, and market-based stock options that generally have a contractual life of up to 10 years and may be exercisable in cash or as otherwise determined by the Company's board of directors or committee thereof. Vesting generally occurs over a period of not greater than four years. Performance-based options may vest upon the achievement of certain milestones. As of March 31, 2024, all of the performance conditions related to performance-based stock options issued by the Company had been achieved. Market-based options may vest upon the achievement of certain market-based objectives relating to the trading price of the Company's common stock. The following table summarizes the activity related to stock option grants to employees and non-employees for the three months ended March 31, 2024: Shares Weighted Weighted Outstanding at December 31, 2023 8,527,626 $ 5.03 6.55 Granted 1,139,601 1.81 Exercised — — Expired (20,838) 2.27 Forfeited (351,905) 4.93 Outstanding at March31, 2024 9,294,484 $ 4.64 7.02 Exercisable at March 31, 2024 4,781,043 $ 7.34 5.34 During the three months ended March 31, 2024, service-based stock options to purchase 1,139,601 shares of common stock were granted to employees and generally vest over four years. The stock options had an estimated weighted average grant date fair value of $1.24. The grant date fair value of each service-based and performance-based option grant was estimated at the time of grant using the Black-Scholes option-pricing model. The grant date fair value of each market-based stock option grant was estimated at the time of grant using a Monte Carlo simulation. The aggregate intrinsic value of stock options outstanding and stock options exercisable, other than market-based stock options, as of March 31, 2024 was $193 and $10, respectively. At March 31, 2024, the unrecognized compensation cost related to unvested stock options, other than market-based stock options, expected to vest was $4,370. This unrecognized compensation will be recognized over an estimated weighted-average amortization period of 2.91 years. Included in the table above are 569,345 market-based options outstanding granted in 2022. These options generally become eligible to vest over four years, subject to the achievement of certain market-based objectives relating to the trading price of the common stock. Stock-based compensation for these awards is recognized over the derived service period of approximately 2 years. The grant date fair value of each stock option grant, as well as the derived service period for these awards, was estimated at the time of grant using a Monte Carlo simulation. During the three months ended March 31, 2024, no market-based options vested upon the achievement of certain market-based objectives relating to the trading price of the Company's common stock. Included in the table above are 711,500 options outstanding granted outside the 2010 Plan. The grants were made pursuant to the Nasdaq inducement grant exception in accordance with Nasdaq Listing Rule 5635(c)(4). The Company calculated the fair value of the stock option grants using the following weighted average assumptions: Three Months Ended March 31, 2024 2023 Risk free interest rate 4.30 % 4.02 % Expected term (in years) 6.08 6.08 Expected volatility 74.13 % 75.28 % Annual dividend yield 0.00 % 0.00 % Restricted Stock Units The Company has issued service-based and performance-based restricted stock units (RSUs). Vesting generally occurs over a period not greater than four years. Vesting of the performance-based RSUs is subject to the achievement of certain milestones in connection with the Company's development programs. The following table summarizes the activity related to RSUs granted to employees for the three months ended March 31, 2024: Shares Balance at December 31, 2023 1,897,421 Granted 3,574,200 Vested and settled (478,520) Expired/forfeited/canceled (66,032) Balance at March 31, 2024 4,927,069 Expected to vest at March 31, 2024 4,927,069 During the three months ended March 31, 2024, the Company granted 3,574,200 RSUs at a weighted-average grant date fair value of $1.82, all of which were service-based RSUs. No performance-based RSUs were granted in the three months ended March 31, 2024. As of December 31, 2023, the milestone associated with the previously granted performance based-RSUs was achieved. At March 31, 2024, the unrecognized compensation cost related to unvested service-based RSUs expected to vest was $8,760 , to be recognized over an estimated weighted-average amortization period of 3.09 years. The unrecognized compensation cost related to unvested performance-based RSUs was $80, which will be recognized over the remaining service period. Included in the table above are 60,000 RSUs granted outside the 2010 Plan. The grants were made pursuant to the Nasdaq inducement grant exception in accordance with Nasdaq Listing Rule 5635(c)(4). 2017 Employee Stock Purchase Plan Under the 2017 Plan, shares of Common Stock may be purchased by eligible employees who elect to participate in the 2017 Plan at 85% of the lower of the fair market value of Common Stock on the first or last day of designated offering periods. During the three months ended March 31, 2024, the Company issued 160,711 shares of Common Stock to employees. The Company calculated the fair value of each grant under the 2017 Employee Stock Purchase Plan using the following weighted average assumptions: Three Months Ended March 31, 2024 2023 Risk free interest rate 0.05 % 0.05 % Expected term (in years) 0.5 0.5 Expected volatility 65.06 % 71.43 % Annual dividend yield — % — %

Basis of Presentation and Sum_2

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Use of estimates	Use of estimates The preparation of the unaudited interim consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the unaudited interim consolidated financial statements and reported amounts of expenses during the reporting period. Due to the uncertainty of factors surrounding the estimates or judgments used in the preparation of the unaudited interim consolidated financial statements, actual results may materially vary from these estimates. Estimates and assumptions are periodically reviewed and the effects of revisions are reflected in the unaudited interim consolidated financial statements in the period they are determined to be necessary.
Concentration of credit risk and customer and supplier concentration	Concentration of credit risk Financial instruments that potentially subject the Company to concentrations of credit risk are primarily cash and accounts receivable. The Company generally invests its cash in deposits with high credit quality financial institutions. Additionally, the Company performs periodic evaluations of the relative credit standing of these financial institutions. Customer and supplier concentration
Fair value of financial instruments	Fair value of financial instruments The Company measures certain assets and liabilities at fair value, which is defined as the price that would be received to sell an asset or paid to transfer a liability (the exit price) in an orderly transaction between market participants at the measurement date. The FASB accounting guidance outlines a valuation framework and creates a fair value hierarchy in order to increase the consistency and comparability of fair value measurements and the related disclosures. In determining fair value, the Company uses quoted prices and observable inputs. Observable inputs are inputs that market participants would use in pricing the asset or liability based on market data obtained from independent sources. The fair value hierarchy is broken down into three levels based on the source of the inputs as follows: • Level 1 — Valuations based on unadjusted quoted prices in active markets for identical assets or liabilities. • Level 2 — Valuations based on observable inputs (other than Level 1 quoted prices), such as quoted prices in active markets for similar assets or liabilities, quoted prices in markets that are not active for identical or similar assets or liabilities, or other inputs that are observable or can be corroborated by observable market data. • Level 3 — Valuations based on inputs that are unobservable and models that are significant to the overall fair value measurement. At March 31, 2024 and December 31, 2023, the Company's financial instruments included cash and cash equivalents, accounts receivable, accounts payable, accrued expenses and certain liability classified warrants. The carrying amounts reported in the Company's financial statements for cash and cash equivalents, accounts receivable, accounts payable and accrued expenses approximates their respective fair values because of the short-term nature of these instruments. In addition, at March 31, 2024, the Company believed the carrying value of debt approximates fair value as the interest rates were reflective of the rate the Company could obtain on debt with similar terms and conditions. At March 31, 2024, there were no financial assets or liabilities measured at fair value on a recurring basis other than the liability classified warrants. In November 2022, the Company issued warrants in connection with a public offering. Pursuant to the terms of the warrant agreement, the Company could be required to settle the warrants in cash in the event of an acquisition of the Company and, as a result, the warrants are required to be measured at fair value and reported as liability in the consolidated balance sheet. The Company recorded the fair value of the warrants upon issuance using a Monte Carlo simulation and is required to revalue the warrants at each reporting date with any changes in fair value recorded on our statement of operations. The valuation of the warrants is considered under Level 3 of the fair value hierarchy due to the need to use assumptions in the valuation that are both significant to the fair value measurement and unobservable. The change in the fair value of the Level 3 warrants liabilities is reflected in the statement of operations for the three months ended March 31, 2024.
Net product revenues	Net product revenues The Company accounts for revenue in accordance with ASC Topic 606, Revenue from Contracts with Customers (ASC 606), which the Company adopted on January 1, 2018. The Company recognizes revenue from XHANCE sales at the point customers obtain control of the product, which generally occurs upon delivery. The transaction price that is recognized as revenue for products includes an estimate of variable consideration. The Company’s estimates of variable consideration and determination of whether to include estimated amounts in the transaction price are based largely on an assessment of its anticipated performance and all information (historical, current and forecasted) that is reasonably available. The components of the Company’s variable consideration include the following: Provider Chargebacks and Discounts. Chargebacks for fees and discounts to providers represent the estimated obligations resulting from contractual commitments to sell products to qualified healthcare providers at prices lower than the list prices charged to customers who directly purchase the product from the Company. Customers charge the Company for the difference between what they pay for the product and the ultimate selling price to the qualified healthcare providers. These components of variable consideration are established in the same period that the related revenue is recognized, resulting in a reduction of product revenue and accounts receivable. Trade Discounts and Allowances. The Company generally provides customers with discounts that include incentive fees which are explicitly stated in the Company’s contracts. These discounts are recorded as a reduction of revenue and accounts receivable in the period in which the related product revenue is recognized. Product Returns. Consistent with industry practice, the Company has a product returns policy that provides customers a right of return for product purchased within a specified period prior to and subsequent to the product’s expiration date. The Company estimates the amount of its product that may be returned and presents this amount as a reduction of revenue in the period the related product revenue is recognized, in addition to establishing a liability. The Company considers several factors in the estimation process, including expiration dates of product shipped to customers, inventory levels within the distribution channel, product shelf life, prescription trends and other relevant factors. Government Rebates. The Company is subject to discount obligations under state Medicaid programs and Medicare. Reserves related to these discount obligations are recorded in the same period the related revenue is recognized, resulting in a reduction of product revenue and the establishment of a current liability. The Company’s liability for these rebates consists of estimates of claims for the current quarter and estimated future claims that will be made for product that has been recognized as revenue but remains in the distribution channel inventories at the end of the reporting period. Payor Rebates. The Company contracts with certain third-party payors, primarily health insurance companies and pharmacy benefit managers, for the payment of rebates with respect to utilization of its products. These rebates are based on contractual percentages applied to the amount of product prescribed to patients who are covered by the plan or the organization with which it contracts. The Company estimates these rebates and records such estimates in the same period the related revenue is recognized, resulting in a reduction of product revenue and the establishment of a current liability. Patient Assistance. Other programs that the Company offers include voluntary co-pay patient assistance programs intended to provide financial assistance to eligible patients with prescription drug co-payments required by payors and coupon programs for cash payors. The calculation of the current liability for this assistance is based on an estimate of claims and the cost per claim that the Company expects to receive associated with product that has been recognized as revenue but remains in the distribution channel inventories at the end of each reporting period. Distribution and Other Fees . The Company pays distribution and other fees to certain customers in connection with the sales of its products. The Company records distribution and other fees paid to its customers as a reduction of revenue, unless the payment is for a distinct good or service from the customer and the Company can reasonably estimate the fair value of the goods or services received. If both conditions are met, the Company records the consideration paid to the customer as an operating expense. These costs are typically known at the time of sale, resulting in minimal adjustments subsequent to the period of sale
Net income (loss) per common share	Net income (loss) per common share Basic net income (loss) per common share is determined by dividing net income (loss) applicable to common stockholders by the weighted average common shares outstanding during the period. For the three months ended March 31, 2024 and 2023, the outstanding common stock options, restricted stock units, common stock warrants and shares to be issued under the Company's 2017 Employee Stock Purchase Plan have been excluded from the calculation of diluted net loss per share because their effect would be anti-dilutive. Therefore, the weighted average shares used to calculate both basic and diluted net loss per share are the same.
Income taxes	Income taxes In accordance with ASC 270, Interim Reporting , and ASC 740, Income Taxes , the Company is required at the end of each interim period to determine the best estimate of its annual effective tax rate and then apply that rate in providing for income taxes on a current year-to-date (interim period) basis. For the three months ended March 31, 2024 and 2023, the Company recorded no tax expense or benefit due to the expected current year loss and its historical losses. As of March 31, 2024 and December 31, 2023, the Company concluded that a full valuation allowance would be necessary for all of its net deferred tax assets. The Company had no amounts recorded for uncertain tax positions, interest or penalties in the accompanying consolidated financial statements.
Recent accounting pronouncements	Recent accounting pronouncements In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. FASB is issuing the amendments in this Update to enhance the transparency and decision usefulness of income tax disclosures. Investors, lenders, creditors, and other allocators of capital (collectively, “investors”) indicated that the existing income tax disclosures should be enhanced to provide information to better assess how an entity’s operations and related tax risks and tax planning and operational opportunities affect its tax rate and prospects for future cash flows. Investors currently rely on the rate reconciliation table and other disclosures, including total income taxes paid, to evaluate income tax risks and opportunities. While investors find these disclosures helpful, they suggested possible enhancements to better (1) understand an entity’s exposure to potential changes in jurisdictional tax legislation and the ensuing risks and opportunities, (2) assess income tax information that affects cash flow forecasts and capital allocation decisions, and (3) identify potential opportunities to increase future cash flows. The amendments in this Update address investor requests for more transparency about income tax information through improvements to income tax disclosures primarily related to the rate reconciliation and income taxes paid information. This Update also includes certain other amendments to improve the effectiveness of income tax disclosures. The new standard is effective for annual periods beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating ASU No. 2023-09 and its impact on results of operations, financial position and cash flows and related disclosures.
Fair Value Measurements	Fair Value Measurements Assets and Liabilities Measured at Fair Value on a Recurring Basis The Company applies the guidance in ASC 820, Fair Value Measurements , to account for financial assets and liabilities measured on a recurring basis. Fair value is measured as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. As such, fair value is a market-based measurement that is determined based on assumptions that market participants would use in pricing an asset or liability. The Company uses a fair value hierarchy, which distinguishes between assumptions based on market data (observable inputs) and an entity's own assumptions (unobservable inputs). The guidance requires that fair value measurements be classified and disclosed in one of the following 3 categories: Level l: Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities; Level 2: Quoted prices in markets that are not active or inputs which are observable, either directly or indirectly, for substantially the full term of the asset or liability; and Level 3: Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity). Determining which category an asset or liability falls within the hierarchy requires significant judgment. The Company evaluates its hierarchy disclosures each reporting period. There were no transfers between Level I, 2 and 3 during the three months ended March 31, 2024.

Basis of Presentation and Sum_3

Basis of Presentation and Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Antidilutive Shares Excluded From Computation of Net Loss Per Common Share	Diluted net loss per common share for the periods presented do not reflect the following potential common shares, as the effect would be antidilutive: March 31, 2024 2023 Stock options 9,289,484 10,489,593 Restricted stock units 4,927,069 2,691,174 Common stock warrants 32,768,000 32,768,000 Total 46,984,553 45,948,767

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2024
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets Measured on Recurring Basis	The table below presents the liabilities (in thousands) measured and recorded in the financial statements at fair value on a recurring basis at March 31, 2024 categorized by the level of inputs used in the valuation of each liability. March 31, 2024 Total Level 1 Level 2 Level 3 Liabilities Warrant Liability $ 18,500 $ — $ — $ 18,500 Total Liabilities $ 18,500 $ — $ — $ 18,500 December 31, 2023 Liabilities Warrant Liability $ 17,200 $ — $ — $ 17,200 Total Liabilities $ 17,200 $ — $ — $ 17,200
Schedule of Fair Value, Liabilities Measured on Recurring Basis	The table below presents the liabilities (in thousands) measured and recorded in the financial statements at fair value on a recurring basis at March 31, 2024 categorized by the level of inputs used in the valuation of each liability. March 31, 2024 Total Level 1 Level 2 Level 3 Liabilities Warrant Liability $ 18,500 $ — $ — $ 18,500 Total Liabilities $ 18,500 $ — $ — $ 18,500 December 31, 2023 Liabilities Warrant Liability $ 17,200 $ — $ — $ 17,200 Total Liabilities $ 17,200 $ — $ — $ 17,200
Schedule of Fair Value, Liabilities Measured on Recurring Basis, Unobservable Inputs Reconciliation	The reconciliation of the Company's warrant liability measured at fair value on a recurring basis using unobservable inputs (Level 3) is as follows (in thousands): Warrant Liability Balance, December 31, 2023 $ 17,200 Warrants issued — Change in fair value of liability 1,300 Balance, March 31, 2024 $ 18,500
Schedule of Significant Unobservable Inputs in Valuation of Warrants	The estimated fair value of the warrant liability is determined using Level 3 inputs. The inputs and values were as follows: March 31, 2024 December 31, 2023 Stock price $ 1.46 $ 1.29 Strike price $ 2.57 $ 2.57 Expected volatility 55.0 % 60.0 % Risk-free interest rate 4.2 % 3.9 % Expected dividend yield — % — % Expected life (years) 3.6 3.9 Fair value per warrant $ 0.61 $ 0.57

Inventory (Tables)

Inventory (Tables)	3 Months Ended
	Mar. 31, 2024
Inventory Disclosure [Abstract]
Schedule of Inventory	Inventory consisted of the following: March 31, 2024 December 31, 2023 Raw materials $ 2,580 $ 2,400 Work-in-process 4,966 3,281 Finished goods 2,769 2,371 Total inventory $ 10,315 $ 8,052

Property and Equipment (Tables)

Property and Equipment (Tables)	3 Months Ended
	Mar. 31, 2024
Property, Plant and Equipment [Abstract]
Schedule of Property and Equipment	Property and equipment, net, consisted of the following: March 31, 2024 December 31, 2023 Computer equipment and software $ 1,465 $ 1,443 Furniture and fixtures 366 366 Machinery and equipment 3,146 3,146 Leasehold improvements 609 609 Construction in process 115 115 5,701 5,679 Less: accumulated depreciation (4,947) (4,864) $ 754 $ 815

Accrued Expenses and Other Cu_2

Accrued Expenses and Other Current Liabilities (Tables)	3 Months Ended
	Mar. 31, 2024
Payables and Accruals [Abstract]
Schedule of Accrued Expenses and Other Current Liabilities	Accrued expenses and other current liabilities consisted of: March 31, 2024 December 31, 2023 Accrued expenses: Product revenue allowances $ 16,751 $ 20,145 Selling, general and administrative expenses 4,868 6,229 Research and development expenses 334 644 Payroll expenses 5,280 6,801 Accrued interest — 4,666 Other 2,835 3,015 Total accrued expenses $ 30,068 $ 41,500 Other current liabilities: Lease liability $ 725 $ 911 Total other current liabilities 725 911 Total accrued expenses and other current liabilities $ 30,793 $ 42,411

Debt (Tables)

Debt (Tables)	3 Months Ended
	Mar. 31, 2024
Debt Disclosure [Abstract]
Schedule of A&R Note Purchase Agreement and Long Term Balance	Pursuant to the Second Amendment, the financial covenants requiring the Company to achieve minimum trailing twelve-month consolidated XHANCE net product sales and royalties was modified as follows (amounts in thousands): Trailing Twelve-Months Ending As Revised Pursuant to Second Amendment March 31, 2024 $70,000 June 30, 2024 $70,000 September 30, 2024 $72,500 December 31, 2024 $75,000 March 31, 2025 $80,000 June 30, 2025 $87,500 September 30, 2025 $95,000 December 31, 2025 $105,500 March 31, 2026 $120,000 June 30, 2026 $130,000 September 30, 2026 $145,000 December 31, 2026 $150,000 March 31, 2027 $155,000 June 30, 2027 $160,000 The Pharmakon debt balance is comprised of the following: March 31, 2024 December 31, 2023 Face amount $ 130,000 $ 130,000 Front end fees (479) (518) Debt issuance costs (4,848) (5,235) Back end fees 5,980 5,980 Debt, net $ 130,653 $ 130,227

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2024
Equity [Abstract]
Schedule of Warrants Outstanding	As of March 31, 2024, the Company had the following warrants outstanding to purchase shares of Common Stock: Number of warrants Classification Exercise Price Per Share Expiration Date 2,500,000 Equity $1.60 November 18, 2024 30,268,000 Liability $2.565 November 23, 2027

Stock-based Compensation (Table

Stock-based Compensation (Tables)	3 Months Ended
	Mar. 31, 2024
Share-Based Payment Arrangement [Abstract]
Schedule of Allocated Stock-Based Compensation Expense	The Company recorded total stock-based compensation expense related to stock options, restricted stock units and it's employee stock purchase plan awarded under the Company's 2010 Stock Incentive Plan, as amended and restated effective as of October 12, 20217 (the 2010 Plan), 2017 Employee Stock Purchase Plan (2017 Plan) and grants made pursuant to the Nasdaq inducement grant exception in accordance with Nasdaq Listing Rule 5635(c)(4) in the following expense categories in the accompanying consolidated statements of operations as follows: Three Months Ended March 31, 2024 2023 Cost of product sales $ 17 $ 6 Research and development 57 155 General and administrative 1,382 1,361 $ 1,456 $ 1,522
Schedule of Stock Option Activity	The following table summarizes the activity related to stock option grants to employees and non-employees for the three months ended March 31, 2024: Shares Weighted Weighted Outstanding at December 31, 2023 8,527,626 $ 5.03 6.55 Granted 1,139,601 1.81 Exercised — — Expired (20,838) 2.27 Forfeited (351,905) 4.93 Outstanding at March31, 2024 9,294,484 $ 4.64 7.02 Exercisable at March 31, 2024 4,781,043 $ 7.34 5.34
Schedule of Fair Value Options using Black-Scholes Pricing Model	The Company calculated the fair value of the stock option grants using the following weighted average assumptions: Three Months Ended March 31, 2024 2023 Risk free interest rate 4.30 % 4.02 % Expected term (in years) 6.08 6.08 Expected volatility 74.13 % 75.28 % Annual dividend yield 0.00 % 0.00 % The Company calculated the fair value of each grant under the 2017 Employee Stock Purchase Plan using the following weighted average assumptions: Three Months Ended March 31, 2024 2023 Risk free interest rate 0.05 % 0.05 % Expected term (in years) 0.5 0.5 Expected volatility 65.06 % 71.43 % Annual dividend yield — % — %
Schedule of Nonvested Restricted Stock Units Activity	The following table summarizes the activity related to RSUs granted to employees for the three months ended March 31, 2024: Shares Balance at December 31, 2023 1,897,421 Granted 3,574,200 Vested and settled (478,520) Expired/forfeited/canceled (66,032) Balance at March 31, 2024 4,927,069 Expected to vest at March 31, 2024 4,927,069

Liquidity (Details)

Liquidity (Details) - USD ($) $ / shares in Units, $ in Thousands	May 10, 2024	Mar. 31, 2024	Dec. 31, 2023
Subsidiary, Sale of Stock
Cash and cash equivalents		$ 51,644	$ 73,684
Working capital deficiency		$ 48,417
Subsequent Event
Subsidiary, Sale of Stock
Sale of common stock, net of issuance costs (in shares)	31,800,000
Purchase price (in dollars per share)	$ 1
Consideration received on transaction	$ 55,000
Prefunded Warrants | Subsequent Event
Subsidiary, Sale of Stock
Sale of common stock, net of issuance costs (in shares)	23,700,000
Purchase price (in dollars per share)	$ 0.999
Prefunded Warrants | Subsequent Event | Common Stock
Subsidiary, Sale of Stock
Purchase price (in dollars per share)	$ 0.0001

Basis of Presentation and Sum_4

Basis of Presentation and Summary of Significant Accounting Policies - Concentration of Credit Risk (Details) - Customer Concentration Risk - Five Customers - customer	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accounts Receivable
Concentration Risk
Number of customers (customer)	5	5
Concentration risk (as a percent)	86%	58%
Sales Revenue, Net
Concentration Risk
Number of customers (customer)	5	5
Concentration risk (as a percent)	66%	39%

Basis of Presentation and Sum_5

Basis of Presentation and Summary of Significant Accounting Policies - Antidilutive Shares Excluded From Computation of Net Loss Per Share (Details) - shares	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share
Securities excluded from computation of net loss per common share (in shares)	46,984,553	45,948,767
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share
Securities excluded from computation of net loss per common share (in shares)	9,289,484	10,489,593
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share
Securities excluded from computation of net loss per common share (in shares)	4,927,069	2,691,174
Common stock warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share
Securities excluded from computation of net loss per common share (in shares)	32,768,000	32,768,000

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Liabilities
Warrant Liability	$ 18,500	$ 17,200
Total Liabilities	18,500	17,200
Level 1
Liabilities
Warrant Liability	0	0
Total Liabilities	0	0
Level 2
Liabilities
Warrant Liability	0	0
Total Liabilities	0	0
Level 3
Liabilities
Warrant Liability	18,500	17,200
Total Liabilities	$ 18,500	$ 17,200

Fair Value Measurements - Fai_2

Fair Value Measurements - Fair Value Liabilities Measured on Recurring Basis Using Unobservable Inputs (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Warrant Liability
Balance, December 31, 2023	$ 17,200
Warrants issued	0
Change in fair value of liability	1,300
Balance, March 31, 2024	$ 18,500
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Change in fair value of warrant liability

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details)	3 Months Ended
	Mar. 31, 2024 $ / shares shares	May 10, 2024	Dec. 31, 2023
Fair Value Measurement Inputs and Valuation Techniques
Class of warrant or right restriction, common shares maximum ownership (as a percent)	4.99%
Class of warrant or right restriction, common shares maximum ownership prior to execution (as a percent)	9.99%
Class of warrant or right restriction, common shares maximum ownership after effective waiting period (as a percent)	19%
Strike price | Monte Carlo Simulation
Fair Value Measurement Inputs and Valuation Techniques
Warrants outstanding, measurement input	2.565		2.57
Subsequent Event | Strike price | Monte Carlo Simulation
Fair Value Measurement Inputs and Valuation Techniques
Warrants outstanding, measurement input		1
Warrant
Fair Value Measurement Inputs and Valuation Techniques
Price per share (in dollars per share)	$ 2.565
Warrant | Public Offering
Fair Value Measurement Inputs and Valuation Techniques
Number of shares issued (in shares) | shares	30,268,000
Warrants exercise price (in dollars per share)	$ 0.01

Fair Value Measurements - Valua

Fair Value Measurements - Valuation of Warrants (Details) - Monte Carlo Simulation	Mar. 31, 2024 $ / shares	Dec. 31, 2023 $ / shares
Fair Value Measurement Inputs and Valuation Techniques
Expected life (years)	3 years 7 months 6 days	3 years 10 months 24 days
Fair value per warrant (in dollars per share)	$ 0.61	$ 0.57
Stock price
Fair Value Measurement Inputs and Valuation Techniques
Warrants outstanding, measurement input	1.46	1.29
Strike price
Fair Value Measurement Inputs and Valuation Techniques
Warrants outstanding, measurement input	2.565	2.57
Expected volatility
Fair Value Measurement Inputs and Valuation Techniques
Warrants outstanding, measurement input	0.550	0.600
Risk-free interest rate
Fair Value Measurement Inputs and Valuation Techniques
Warrants outstanding, measurement input	0.042	0.039
Expected dividend yield
Fair Value Measurement Inputs and Valuation Techniques
Warrants outstanding, measurement input	0	0

Inventory (Details)

Inventory (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Inventory Disclosure [Abstract]
Raw materials	$ 2,580	$ 2,400
Work-in-process	4,966	3,281
Finished goods	2,769	2,371
Total inventory	$ 10,315	$ 8,052

Property and Equipment - Schedu

Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment
Property and equipment, gross	$ 5,701	$ 5,679
Less: accumulated depreciation	(4,947)	(4,864)
Property and equipment, net	754	815
Computer equipment and software
Property, Plant and Equipment
Property and equipment, gross	1,465	1,443
Furniture and fixtures
Property, Plant and Equipment
Property and equipment, gross	366	366
Machinery and equipment
Property, Plant and Equipment
Property and equipment, gross	3,146	3,146
Leasehold improvements
Property, Plant and Equipment
Property and equipment, gross	609	609
Construction in process
Property, Plant and Equipment
Property and equipment, gross	$ 115	$ 115

Property and Equipment - Narrat

Property and Equipment - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Property, Plant and Equipment [Abstract]
Depreciation	$ 83	$ 72

Accrued Expenses and Other Cu_3

Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Accrued expenses:
Product revenue allowances	$ 16,751	$ 20,145
Selling, general and administrative expenses	4,868	6,229
Research and development expenses	334	644
Payroll expenses	5,280	6,801
Accrued interest	0	4,666
Other	2,835	3,015
Total accrued expenses	30,068	41,500
Other current liabilities:
Lease liability	725	911
Total other current liabilities	725	911
Total accrued expenses and other current liabilities	$ 30,793	$ 42,411

Debt - Narrative (Details)

Debt - Narrative (Details)			3 Months Ended
	May 10, 2024 USD ($) $ / shares shares	Nov. 23, 2022 USD ($) installment	Mar. 31, 2024 USD ($) $ / shares	Mar. 31, 2023 USD ($)	May 08, 2024 USD ($)	Dec. 01, 2020 USD ($)	Feb. 13, 2020 USD ($)	Sep. 12, 2019 USD ($)
Warrants Expiring November 18, 2024
Debt Instrument
Warrants exercise price (in dollars per share) | $ / shares			$ 1.60
Subsequent Event | Warrants Expiring November 18, 2024
Debt Instrument
Warrants exercise price (in dollars per share) | $ / shares	$ 1
Note Purchase Agreement | Senior Notes
Debt Instrument
Debt maximum borrowing capacity								$ 130,000,000
Debt face amount								$ 80,000,000
Stated interest rate (as a percent)		8.50%
Increase in interest rate (as a percent)		3%
Effective rate (as a percent)			14.80%
Amendment fee (as a percent)		3%
Amendment fee payable		$ 1,300,000
Make whole premium payment		24,000,000
Debt covenant, cash and cash equivalents			$ 30,000,000
Interest expense			$ 4,970,000	$ 4,672,000
Note Purchase Agreement | Senior Notes | Subsequent Event
Debt Instrument
Debt covenant, cash and cash equivalents					$ 20,000,000
Shares issued to settle debt (in shares) | shares	4,680,000
Value of debt settled with shares	$ 4,680,000
Note Purchase Agreement | Senior Notes | Debt Instrument, Redemption, Period One
Debt Instrument
Amendment fee		$ 3,900,000
Debt instrument, make-whole provision, payment accrual period		18 months
Note Purchase Agreement | Senior Notes | Debt Instrument, Redemption, Period Three
Debt Instrument
Amendment fee		$ 2,600,000
Debt instrument, make-whole provision, payment accrual period		42 months
Note Purchase Agreement | Senior Notes | Debt Instrument, Redemption, Period Two
Debt Instrument
Debt instrument, make-whole provision, payment accrual period		24 months
Note Purchase Agreement | Senior Notes | SOFR
Debt Instrument
Number of installment payments (installment) | installment		8
Debt term		3 months
Variable rate (as a percent)		2.50%
Note Purchase Agreement - First Delayed Draw Notes | Senior Notes
Debt Instrument
Debt face amount							$ 30,000,000
Note Purchase Agreement - Third Delayed Draw Notes | Senior Notes
Debt Instrument
Debt face amount						$ 20,000,000

Debt - A&R Note Purchase Agreem

Debt - A&R Note Purchase Agreement (Details) - Senior Notes $ in Thousands	Mar. 31, 2024 USD ($)
March 31, 2024
Debt Instrument
XHANCE net product sales and royalties	$ 70,000
June 30, 2024
Debt Instrument
XHANCE net product sales and royalties	70,000
September 30, 2024
Debt Instrument
XHANCE net product sales and royalties	72,500
December 31, 2024
Debt Instrument
XHANCE net product sales and royalties	75,000
March 31, 2025
Debt Instrument
XHANCE net product sales and royalties	80,000
June 30, 2025
Debt Instrument
XHANCE net product sales and royalties	87,500
September 30, 2025
Debt Instrument
XHANCE net product sales and royalties	95,000
December 31, 2025
Debt Instrument
XHANCE net product sales and royalties	105,500
March 31, 2026
Debt Instrument
XHANCE net product sales and royalties	120,000
June 30, 2026
Debt Instrument
XHANCE net product sales and royalties	130,000
Septmeber 30, 2026
Debt Instrument
XHANCE net product sales and royalties	145,000
December 31, 2026
Debt Instrument
XHANCE net product sales and royalties	150,000
March 31, 2027
Debt Instrument
XHANCE net product sales and royalties	155,000
June 30, 2027
Debt Instrument
XHANCE net product sales and royalties	$ 160,000

Debt - Schedule of Long Term De

Debt - Schedule of Long Term Debt (Details) - Senior Notes - Note Purchase Agreement - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument
Face amount	$ 130,000	$ 130,000
Front end fees	(479)	(518)
Debt issuance costs	(4,848)	(5,235)
Back end fees	5,980	5,980
Debt, net	$ 130,653	$ 130,227

Commitments and Contingencies (

Commitments and Contingencies (Details) - Hikma $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Purchase Commitment, Excluding Long-Term Commitment [Line Items]
Minimum purchases in 2024	$ 1,688
Minimum purchases in 2025	2,251,000
Minimum purchases in 2026	$ 2,251,000
Shortfall reimbursement rate (as a percent)	50%
Payments to purchase supplies	$ 428

Employee Benefit Plans (Details

Employee Benefit Plans (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Retirement Benefits [Abstract]
Accrued liabilities related to the Company match	$ 183	$ 61

Stockholders' Equity - Warrants

Stockholders' Equity - Warrants Outstanding (Details)	Mar. 31, 2024 $ / shares shares
Warrants Expiring November 18, 2024
Class of Stock
Number of warrants outstanding (in shares) | shares	2,500,000
Warrants exercise price (in dollars per share) | $ / shares	$ 1.60
Warrants Expiring November 23, 2027
Class of Stock
Number of warrants outstanding (in shares) | shares	30,268,000
Warrants exercise price (in dollars per share) | $ / shares	$ 2.565

Stockholders' Equity - Narrativ

Stockholders' Equity - Narrative (Details) - Subsequent Event	May 10, 2024 $ / shares shares
Class of Stock
Sale of common stock, net of issuance costs (in shares) | shares	31,800,000
Purchase price (in dollars per share) | $ / shares	$ 1
Warrants outstanding (in shares) | shares	30,268,000
Warrants Expiring November 18, 2026
Class of Stock
Warrants exercise price (in dollars per share) | $ / shares	$ 1
Prefunded Warrants
Class of Stock
Sale of common stock, net of issuance costs (in shares) | shares	23,700,000
Purchase price (in dollars per share) | $ / shares	$ 0.999

Stock-based Compensation - Allo

Stock-based Compensation - Allocated Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Share-based Payment Arrangement, Expensed and Capitalized, Amount
Stock-based compensation expense	$ 1,456	$ 1,522
Cost of product sales
Share-based Payment Arrangement, Expensed and Capitalized, Amount
Stock-based compensation expense	17	6
Research and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount
Stock-based compensation expense	57	155
General and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount
Stock-based compensation expense	$ 1,382	$ 1,361

Stock-based Compensation - Narr

Stock-based Compensation - Narrative (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award
Granted (in shares)	1,139,601
Service Based Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Award vesting period (in years)	4 years
Granted (in shares)	1,139,601
Fair value of common stock (in dollars per share) | $ / shares	$ 1.24
Intrinsic value of options outstanding | $	$ 193
Intrinsic value of exercisable options | $	10
Unrecognized cost related to unvested RSUs expected to vest | $	$ 4,370
Estimated weighted-average amortization period (in years)	2 years 10 months 28 days
Market Based Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Award vesting period (in years)	4 years
Granted (in shares)	569,345
Service period (in years)	2 years
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award
Award vesting period (in years)	4 years
Granted (in shares)	3,574,200
Restricted shares fair value at grant date (in dollars per share) | $ / shares	$ 1.82
Restricted Stock Units, Service-Based
Share-based Compensation Arrangement by Share-based Payment Award
Unrecognized cost related to unvested RSUs expected to vest | $	$ 8,760
Estimated weighted-average amortization period (in years)	3 years 1 month 2 days
Restricted Stock Units, Performance-Based
Share-based Compensation Arrangement by Share-based Payment Award
Unrecognized cost related to unvested RSUs expected to vest | $	$ 80
Amended and Restated 2010 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award
Plan options contractual life (up to) (in years)	10 years
NASDAQ Inducement Grant Exception | Service Based Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Granted (in shares)	711,500
NASDAQ Inducement Grant Exception | Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award
Granted (in shares)	60,000
2017 Plan | Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award
ESPP purchase price of common stock (as a percent)	85%
Shares issued (in shares)	160,711

Stock-based Compensation - Stoc

Stock-based Compensation - Stock Option Activity (Details) - $ / shares	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Shares
Granted (in shares)	1,139,601
Service Based Stock Options
Shares
Beginning balance (in shares)	8,527,626
Granted (in shares)	1,139,601
Exercised (in shares)	0
Expired (in shares)	(20,838)
Forfeited (in shares)	(351,905)
Ending balance (in shares)	9,294,484	8,527,626
Exercisable (in shares)	4,781,043
Weighted average exercise price per share
Beginning balance (in dollars per share)	$ 5.03
Granted (in dollars per share)	1.81
Exercised (in dollars per share)	0
Expired (in dollars per share)	2.27
Forfeited (in dollars per share)	4.93
Ending balance (in dollars per share)	4.64	$ 5.03
Exercisable (in dollars per share)	$ 7.34
Weighted average remaining contractual life
Options outstanding, weighted average remaining contractual life	7 years 7 days	6 years 6 months 18 days
Options exercisable, weighted average remaining contractual life	5 years 4 months 2 days

Stock-based Compensation - Blac

Stock-based Compensation - Black-Scholes pricing model options (Details) - 2017 Employee Stock Purchase Plan	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award
Risk free interest rate	0.05%	0.05%
Expected term (in years)	6 months	6 months
Expected volatility	65.06%	71.43%
Annual dividend yield	0%	0%
Service Based Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Risk free interest rate	4.30%	4.02%
Expected term (in years)	6 years 29 days	6 years 29 days
Expected volatility	74.13%	75.28%
Annual dividend yield	0%	0%

Stock-based Compensation - Rest

Stock-based Compensation - Restricted Stock Units Activity (Details) - Restricted stock units	3 Months Ended
	Mar. 31, 2024 shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)	1,897,421
Granted (in shares)	3,574,200
Vested and settled (in shares)	(478,520)
Expired/ forfeited/ canceled (in shares)	(66,032)
Ending balance (in shares)	4,927,069
Expected to vest at end of period (in shares)	4,927,069