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Stockholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2024
Stockholders' Equity Note [Abstract] |
Schedule of Designated Preferred Units | As of March 31, 2024, the Company has designated the following preferred stock:
Designated Preferred Shares |  | March 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 |
Summary of Avenue Warrant Valued Using the Black-Scholes Option Pricing Method | The Company values stock options using the Black-Scholes option pricing model and used the following assumptions, on a weighted-average basis, during the reporting periods:
| Three Months Ended March 31,
| 2024 |  | 2023
Expected terms (years) | 5.6 |  | 5.8
Expected volatility | 115.0% |  | 172.8%
Risk-free interest rate | 4.19% |  | 4.08%
Expected dividends | 0.00% |  | 0.00%
Summary of Stock Option Activity | The following is a summary of stock option activity for the three months ended March 31, 2024:
| Number of Options |  | Weighted Average Exercise Price Per Share |  | Weighted Average Grant Date Fair Value Per Share |  | Weighted Average Remaining Contractual Term (in years) |  | Aggregate Intrinsic Value (in thousands)
Outstanding at January 1, 2024 | 4,183,232 |  | $ | 8.17 |  |  | $ | 7.60 |  |  | 8.3 |  | $ | 147 |
Granted | 2,017,596 |  | 4.80 |  |  | 3.92 |  | 9.7 |  |
Exercised | — |  |  | — |  |  | — |  |  |  |  | — |
Expired | (15,341) |  | 7.16 |  |  | 6.91 |  |  |  |
Cancelled/Forfeited | (146,312) |  | 6.08 |  |  | 5.75 |  |  |  |
Outstanding at March 31, 2024 | 6,039,175 |  | $ | 7.10 |  |  | $ | 6.42 |  |  | 8.6 |  | $ | 433 |
Exercisable at March 31, 2024 | 2,569,497 |  | $ | 9.47 |  |  | $ | 8.73 |  |  | 7.4 |  | $ | 74 |
Unvested at March 31, 2024 | 3,469,678 |  |  | $ | 5.34 |  |  | $ | 4.70 |  |  | 9.4 |  | $ | 358 |
Summary of Stock Option Shares Outstanding and Exercisable | The following table summarizes information for stock option shares outstanding and exercisable at March 31, 2024:
|  |  |  | Options Outstanding
Range of Exercise Prices |  | Outstanding Number of Options |  | Weighted Average Remaining Option Term (in years) |  | Number of Options
$2.83 - $51.50 |  | 6,038,676 |  | 8.6 |  | 6,038,676
$51.50+ |  | 499 |  | 4.8 |  | 499
|  | 6,039,175 |  | 8.6 |  | 6,039,175
Summary of Recognized Share-based Compensation Cost | The following is a summary of share-based compensation expense in the statement of operations for the three months ended March 31, 2024:
| Three Months Ended March 31, |  |
(In thousands) | 2024 |  | 2023 |  |  |  |
Selling, general and administrative | $ | 2,042 |  |  | $ | 1,118 |  |  |  |  |
Research and development | 647 |  |  | 417 |  |  |  |  |
Cost of goods sold | 256 |  |  | 126 |  |  |  |  |
Total | $ | 2,945 |  |  | $ | 1,661 |  |  |  |  |
Summary of Warrant Activity | The following is a summary of common stock warrant activity for the three months ended March 31, 2024:
| Warrants |  | Weighted Average Exercise Price |  | Weighted Average Remaining Life (in years)
Outstanding at January 1, 2024 | 4,665,201 |  | $ | 7.76 |  |  | 1.6
Warrants issued | 1,008,102 |  | 0.01 |  |  | 5.0
Warrants exercised | — |  |  | — |  |  |
Outstanding at March 31, 2024 | 5,673,303 |  |  |  | 2.0
Exercisable at March 31, 2024 | 5,673,303 |  | $ | 6.39 |  |  | 2.0
The following is a summary of preferred stock warrant activity for the three months ended March 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 | — |  |  |  |  |
Outstanding at March 31, 2024 | 24,900 |  | $ | 1,000 |  |  | 2.0
Exercisable at March 31, 2024 | 24,900 |  | $ | 1,000 |  |  | 2.0
Schedule of Information Related to Stock Warrants Outstanding and Exercisable | The following table presents information related to common stock warrants outstanding at March 31, 2024:
|  |  | Warrants Exercisable
Range of Exercise Prices | Outstanding Number of Warrants |  | Weighted Average Remaining Warrant Term (in years) |  | Number of Warrants
$0.01 | 2,045,894 |  | 4.0 |  | 2,045,894
$6.00 | 16,666 |  | 2.0 |  | 16,666
$10.00 | 3,610,743 |  | 1.0 |  | 3,610,743
| 5,673,303 |  | 2.0 |  | 5,673,303

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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 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 4: 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 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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- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding and exercisable options that are fully vested and expected to vest. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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