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Stockholders’ Equity | 9 Months Ended
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Sep. 30, 2025
Equity [Abstract] |
Stockholders’ Equity | 9. Stockholders’ Equity Common Stock As of September 30, 2025, 4,479,123 shares of common stock were issued and outstanding, 241,260 shares of common stock were reserved for issuance upon the exercise of outstanding warrants, 478,488 shares of common stock were reserved for issuance under our 2015 Equity Incentive Plan, as amended (the “2015 Plan”) and our 2024 Equity Incentive Plan, as amended (the “2024 Plan”), and 104,136 shares were reserved for issuance under our 2023 Non-Employee Director Compensation Plan. We maintain an effective registration statement (the “Registration Statement”) covering up to $12.9 million of common stock, warrants, and units. The Registration Statement includes a prospectus covering the offer, issuance and sale of up to $10.0 million in our common stock from time to time in “at-the-market offerings” pursuant to an At the Market Agreement (the “ATM Program”) with Lucid Capital Markets, LLC (“Lucid”) as our sales agent. As of September 30, 2025, we have sold 145,938 shares of our common stock pursuant to the ATM Program and received aggregate net proceeds totaling $1,621,325. As of November 12, 2025, approximately $8.2 million remained available under the ATM Program. The following table describes the shares and warrants issued as part of our 2022 private placement: Schedule of Shares and Warrants Issued
Issuance of Common Stock |  | Issue Date |  | Shares Issued |  |  | Price per share |  |  | Warrants Issued |  |  | Warrant Exercise Price |  |  | Warrant Fair Value |
Private Placement 2022 |  | April 1, 2022 |  |  | 1,242,588 |  |  | $ | 4.62 |  |  |  | 124,258 |  |  | $ | 4.62 |  |  | $ | 3.91 |
Amortization of the debt issuance costs for the Private Placement 2022 offering was recorded at $0 and $42,052 for the three and nine months ended September 30, 2025, and at $47,559 and $142,091 for the three and nine months ended September 30, 2024. Warrants The following sets forth the warrants to purchase our common stock that were outstanding as of September 30, 2025: Schedule of Warrants to Purchase Common Stock
Warrants Outstanding |  |  | Warrant Exercise Price |  |  | Warranty Expiry
| 109,560 |  |  | $ | 4.62 |  |  | March 30, 2027 (1)
| 95,500 |  |  | $ | 4.00 |  |  | March 30, 2027 (1)
| 16,000 |  |  | $ | 9.00 |  |  | March 30, 2027 (1)
| 17,200 |  |  | $ | 12.50 |  |  | March 30, 2027 (1)
| 3,000 |  |  | $ | 15.00 |  |  | March 30, 2027 (2)
(1) | Issued to the placement agent in connection with private placements of our convertible promissory notes.
(2) | Issued to certain 5% stockholders.
A summary of warrant activity during the nine months ended September, 2025 and 2024 is as follows: Schedule of Warrant Activity
|  | Warrants |
Outstanding at January 1, 2025 |  |  | 255,958 |
Exercised |  |  | (14,698 | )
Outstanding and Exercisable at March 31, 2025 |  |  | 241,260 |
Exercised |  |  | - |
Outstanding and Exercisable at June 30, 2025 |  |  | 241,260 |
Exercised |  |  | - |
Outstanding and Exercisable at September 30, 2025 |  |  | 241,260 |

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