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Note 8 - Financing Activities | 6 Months Ended
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Jun. 30, 2025
Notes to Financial Statements |
Other Liabilities Disclosure [Text Block] | NOTE 8. FINANCING ACTIVITIES See Notes 2, “Summary of Significant Accounting Policies;” 3, “Fair Value Measurements;” 9, “Convertible Notes;” 10, “Common Stock Warrants” and 11, “Stockholders’ Equity (Deficit)” for certain defined terms below and additional discussion of financing activities and related accounting policies and fair value estimates. 2024 Public Offering On July 26, 2024, the Company entered into an underwriting agreement (the “Underwriting Agreement”) with Ladenburg Thalmann & Co., Inc., as the sole underwriter (the “Underwriter”), relating to the issuance and sale in a public offering (the “2024 Public Offering”) of: (i) 1,158,566 shares of common stock and 2,041,814 pre-funded warrants, in lieu of shares of common stock (the “July 2024 Pre-Funded Warrants”), (ii) 3,200,380 Series F-1 warrants to purchase up to 3,200,380 shares of common stock (the “Series F-1 Warrants”), (iii) 3,200,380 Series F-2 warrants to purchase up to 3,200,380 shares of common stock (the “Series F-2 Warrants”) and (iv) 3,200,380 Series F-3 warrants to purchase up to 3,200,380 shares of common stock (the “Series F-3 Warrants”, and together with the Series F-1 Warrants and Series F-2 Warrants, the “July 2024 Warrants”). The Series F-1 Warrants had an exercise price of $1.10 per share at issuance, were exercisable immediately upon issuance, and will expire on the five-year anniversary of the date of issuance. The Series F-2 Warrants had an exercise price of $1.10 per share at issuance, were exercisable immediately upon issuance, and have since expired on the six-month anniversary of the date of issuance on January 29, 2025. The Series F-3 Warrants had an exercise price of $1.10 per share at issuance, were exercisable immediately upon issuance, and expired on the one-year anniversary of the date of issuance. The July 2024 Pre-Funded Warrants were immediately exercisable at a nominal exercise price of $0.01 per share and could be exercised at any time until the July 2024 Pre-Funded Warrants were exercised in full. The July 2024 Warrants included a one-time down round feature adjustment where the exercise price was automatically reset to a price equal to the lesser of (i) the then exercise price and (ii) 90% of the volume weighted average prices for the five (5) trading days immediately preceding the date that is sixty calendar days after issuance of the July 2024 Warrants as applicable. Such down round feature adjustment was triggered on September 27, 2024, which resulted in a reduced exercise price of $0.66 for all of the July 2024 Warrants. The exercise price and number of shares of common stock issuable upon exercise of the July 2024 Warrants is subject to appropriate adjustment in the event of stock dividends, stock splits, reorganizations or similar events affecting the common stock and the exercise price. Subject to limited exceptions, a holder may not exercise any portion of its July 2024 Warrants to the extent that the holder would beneficially own more than 4.99% (or, at the election of the holder prior to the date of issuance, 9.99%) of the Company’s outstanding common stock after exercise. In addition, the Company granted the Underwriter a 45-day option to purchase up to 477,272 additional shares of common stock and/or 477,272 Series F-1 Warrants to purchase up to 477,272 shares of common stock, 477,272 Series F-2 Warrants to purchase up to 477,272 shares of common stock and 477,272 Series F-3 Warrants to purchase up to 477,272 shares of common stock, or any combination thereof, as determined by the Underwriter, at the public offering price, less underwriting discounts and commissions, in each case solely to cover over-allotments, if any. The Underwriter partially exercised this option on July 26, 2024, for (i) 336,832 shares of common stock, (ii) 336,832 Series F-1 Warrants to purchase up to 336,832 shares of common stock, (iii) 336,832 Series F-2 Warrants to purchase up to 336,832 shares of common stock and (iv) 336,832 Series F-3 Warrants to purchase up to 336,832 shares of common stock. The 2024 Public Offering closed on July 29, 2024, and the Company received gross proceeds of $3.9 million, without taking into account any underwriting discounts and commissions. A portion of the proceeds were used towards repaying the Secured Convertible Notes, which were repaid in full during the third quarter of 2024. 2024 Warrant Reprice Transaction In June 2024, the Company entered into a warrant reprice transaction (the “2024 Warrant Reprice Transaction”) with certain existing holders of (i) warrants issued in September 2022 to purchase common stock, (ii) Series A-1 Warrants issued in November 2022 to purchase common stock, (iii) Series B-1 Warrants issued in May 2023 to purchase common stock, and (iv) Series B-2 Warrants issued in May 2023 to purchase common stock (collectively (i) through (iv), the “Participant Warrants”). The participants agreed to exercise a portion of their Participant Warrants at a reduced exercise price of $2.50 per share. Participant Warrants were exercised for an aggregate of 90,381 shares of common stock, resulting in gross proceeds of approximately $0.2 million. The Company also issued participants in the 2024 Warrant Reprice Transaction a new June 2024 Warrant to purchase a number of shares of common stock equal to 100% of the shares of common stock exercised. The June 2024 Warrants are substantially similar to the Participant Warrants, except that the June 2024 Warrants will (i) be initially exercisable on the six-month anniversary of the date of issuance; (ii) have an exercise price of $2.57 per share; and (iii) have a term of five (5) years and six (6) months from the date of the closing of the 2024 Warrant Reprice Transaction. The Company incurred total issuance costs of $96 thousand in conjunction with the 2024 Warrant Reprice Transaction. The Company incurred a $69 thousand non-cash loss on the modification of common stock warrants which was recorded in “Other expense, net” in the unaudited condensed consolidated statements of operations during the quarter ended June 30, 2024.

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