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Note 9 - Convertible Notes | 9 Months Ended
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Sep. 30, 2023
Notes to Financial Statements |
Long-Term Debt [Text Block] | 9. Convertible Notes In December 2020, EIP issued the 2020 Notes to predominantly related party investors for proceeds of $5.1 million. In December 2021, EIP issued the 2021 Notes to predominantly related party investors for proceeds of $6.0 million. Upon issuance, the Company elected the fair value option for the Convertible Notes in accordance with ASC 825, “Financial Instruments,” pursuant to which the entire instrument, including interest expense, is measured at fair value with the initial change in fair value deemed to be a capital contribution and any subsequent changes in fair value being recorded to other income (expense). The fair value adjustments recognized in other income (expense) were $4.8 million and $0 million for the three months ended September 30, 2023 and 2022, respectively. The fair value adjustments recognized in other income (expense) were $5.4 million and $(1.8) million for the nine months ended September 30, 2023 and 2022, respectively. In June 2023, EIP entered into the 2023 Notes Amendment which amended the conversion price of the Convertible Notes to $1.47 per share of EIP Common Stock upon effectiveness of the Merger with the Company or a 30% conversion discount upon the occurrence of any other reverse merger. Further, the amendment provided that if the Merger with the Company resulted in a holder of these notes beneficially owning more than 9.99% of the outstanding voting stock of the Company, then, the holder of these notes shall be granted pre-funded warrants in lieu of the Company’s common stock for the conversion of any principal and accrued but unpaid interest in excess of such threshold. The exercise price of one share of the Company’s common stock under this pre-funded warrant is equal to $0.001 (Note 11). The 2023 Notes Amendment qualified as a modification in accordance with FASB ASC 470 Debt, since there were no concessions granted and no substantive change to the fair value of the conversion option before and after the 2023 Amendment. There was no financial statement impact as a result of the 2023 Amendment other than the change in fair value of the Convertible Notes during the nine months ended September 30, 2023 and debt issuance costs of approximately $50,000 that was recorded to general and administrative expenses. As a result of the Merger (Note 4), pursuant to the terms thereof, the Convertible Notes converted into shares of EIP Common Stock which were subsequently converted into the right to exchange such shares for 897,272 shares of the Company’s common stock and, in certain cases, pre-funded warrants to purchase the Company’s common stock. Accordingly, the convertible notes were adjusted to fair value prior to conversion by multiplying the trading price of the Company’s common stock at the date of the Effective Time and the 795,905 common shares and 101,367 pre-funded warrants issued upon conversion. The Company recorded a gain on the fair value adjustment of the Convertible Notes of $4.8 million and $5.4 million for the three and nine months ended September 30, 2023 and recorded $7.0 million to additional paid in capital for the issuance of common stock upon settlement of the Convertible Notes.

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