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Stockholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2024
Stockholders' Equity Note [Abstract] |
Schedule of Designated Preferred Shares | As of December 31, 2024, the Company has designated the following preferred stock:
Designated Preferred Shares |  | December 31, 2024
Series A |  | 4,200 |
Series B |  | 2,360 |
Series C |  | 590 |
Series D |  | 10,000 |
Series E |  | 40,000 |
Series E-1 |  | 12,960 |
Series F-1 |  | 24,900 |
Series F-2 |  | 24,900 |
Series F-3 |  | 34,860 |
Series F-4 |  | 24,900 |
Total |  | 179,670 |
Schedule of Compensation Plans | The following table sets forth information as of December 31, 2024 with respect to compensation plans (including individual compensation arrangements) under which shares of common stock of the Company are authorized for issuance.
Plan category |  | Number of securities to be issued upon exercise of outstanding options, warrants and rights (a) |  | Weighted-average exercise price of outstanding options, warrants and rights (b) |  | Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column (a)) (c)
Equity compensation plans approved by security holders |  | 4,510,302 |  | $ | 6.77 |  |  | 2,343,767
Equity compensation plans not approved by security holders (1) |  | 1,256,625 |  | $ | 8.86 |  |  | 255,000
Total |  | 5,766,927 |  | $ | 7.23 |  |  | 2,598,767
(1)Includes (a) stock options for an aggregate of 499 shares of common stock issued under the Company’s 2019 Equity Incentive Plan, which allows for grants in the form of incentive stock options, non-qualified stock options, stock units, stock awards, stock appreciation rights, and other stock-based awards to the Company’s officers, directors, employees, consultants, and advisors, including options to purchase shares of common stock at exercise prices not less than 100% of fair value on the dates of grant. As of November 2, 2020, no additional grants may be made under this plan, which has been superseded by the Company’s 2020 Omnibus Equity Incentive Plan; however, outstanding awards granted under this plan will remain outstanding and continue to be administered in accordance with the terms of this plan and the applicable award agreements; (b) pursuant to an employment agreement dated as of August 31, 2020 between the Company and Gerard Michel, the Company’s Chief Executive Officer, on October 1, 2020, a non-qualified and non-plan stock option “inducement award” to purchase 498,000 shares of the Company’s common stock in reliance on Nasdaq Rule 5635(c)(4) pursuant to the terms of a stock option award agreement between the Company and Mr. Michel; and (c) new hire inducement awards to purchase 758,126 shares of the Company’s common stock in reliance on Nasdaq Rule 5635(c)(4) pursuant to the terms of a stock option award agreement between the Company and 27 employees hired between 2022 and 2024.
Schedule of Assumptions to Estimate Fair Value of Stock Options Using Black-Scholes Option Pricing Model | The Company values stock options using the Black-Scholes option pricing model and used the following assumptions for new grants, on a weighted average basis, during the reporting periods:
| Years Ended December 31
| 2024 |  | 2023
Expected terms (years) | 5.2 - 5.9 |  | 0.8 - 5.9
Expected volatility | 98.3% -128.6% |  | 96.4.% - 172.8%
Risk-free interest rate | 3.7% - 4.7% |  | 3.9% - 5.4%
Expected dividends | 0.00% |  | 0.00%
Schedule of Stock Option Activity | The following is a summary of stock option activity for the year ended December 31, 2024:
| Number of Options |  | Weighted Average Exercise Price Per Share |  | Weighted Average Remaining Contractual Term (in years) |  | Aggregate Intrinsic Value (in thousands)
Outstanding at January 1, 2024 | 4,183,232 |  | $ | 8.17 |  |  | 8.3 |  | $ | 147 |
Granted | 2,312,096 |  | 5.26 |  |  | 8.6 |  |
Exercised | (269,673) |  | 6.24 |  |  |  |  |
Expired | (106,910) |  | 9.23 |  |  |  |  |
Cancelled/Forfeited | (351,818) |  | 5.62 |  |  |  |  |
Outstanding at December 31, 2024 | 5,766,927 |  | $ | 7.23 |  |  | 7.5 |  | $ | 28,796 |
Exercisable at December 31, 2024 | 3,494,864 |  | $ | 8.35 |  |  | 6.5 |  | $ | 13,947 |
Unvested at December 31, 2024 | 2,272,063 |  | $ | 5.50 |  |  | 8.9 |  | $ | 14,849 |
Schedule of Recognized Share-Based Compensation Cost | The following is a summary of share-based compensation expense in the statement of operations for the twelve months ended December 31, 2023 and December 31, 2024:
| Year Ended December 31,
(In thousands) | 2024 |  | 2023
Selling, general and administrative | $ | 6,690 |  |  | $ | 4,944 |
Research and development | 2,286 |  |  | 2,837 |
Cost of goods sold | 791 |  |  | 370 |
Total | $ | 9,767 |  |  | $ | 8,151 |
Schedule of Warrant Activity | The following is a summary of common stock warrant activity for the year ended December 31, 2024:
| Warrants |  | Weighted Average Exercise Price
Outstanding at January 1, 2024 | 4,665,201 |  | $ | 7.76 |
Warrants issued(1) | 1,612,056 |  | .01 |
Warrants exercised | (3,071,563) |  |  | 5.72 |
Warrants cancelled | (12,419) |  |  | 10.00 |
Outstanding and exercisable at December 31, 2024 | 3,193,275 |  | $ | 5.80 |
(1) 1,008,102 of the warrants issued in 2024 were exercised in 2024. The remaining 603,954 warrants issued were converted to pre-funded warrants from Series E and E-1 Warrants during exercise. The following is a summary of preferred stock warrant activity for the year ended December 31, 2024:
| Warrants |  | Weighted Average Exercise Price |  | Weighted Average Remaining Life (in years)
Outstanding at January 1, 2024 | 24,900 |  | $ | 1,000 |  |  | 2.3
Warrants issued | — |  |  | — |  |  |
Warrants exercised | (24,900) |  |  | $ | 1,000 |  |  |
Outstanding and exercisable at December 31, 2024 | — |  |  | $ | — |  |  |
Schedule of Information Related to Stock Warrants | The following table presents information related to common stock warrants at December 31, 2024:
|  | Warrants Exercisable
Range of Exercise Prices |  | Outstanding Number of Warrants |  | Weighted Average Remaining Warrant Term (in years)
$0.01 (1) |  | 1,341,375 |  |
$10.00 (2) |  | 1,851,900 |  | 0.3
|  | 3,193,275 |  |
(1) Pre-funded warrants with a $0.01 exercise price do not expire until exercised. (2) As of February 28, 2025, 213,500 warrants were exercised with subsequent cash receipts of $2.1 million. These Series F warrants expire on May 5, 2025.

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of an entity's stock, including par or stated value per share, number and dollar amount of share subscriptions, shares authorized, shares issued, shares outstanding, number and dollar amount of shares held in an employee trust, dividend per share, total dividends, share conversion features, par value plus additional paid in capital, the value of treasury stock and other information necessary to a fair presentation, and EPS information. Stock by class includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. Includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity. If more than one issue is outstanding, state the title of each issue and the corresponding dollar amount; dollar amount of any shares subscribed but unissued and the deduction of subscriptions receivable there from; number of shares authorized, issued, and outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(27)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-3 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-4 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-5 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481142/505-10-45-2 Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-10 Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-8 Reference 11: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480244/480-10-S99-1 Reference 12: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-6 Reference 13: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-7 + Details
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- Definition Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-1 + Details
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