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Note 8 - Debt | 6 Months Ended
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Mar. 31, 2026
Notes to Financial Statements |
Debt Disclosure [Text Block] | Note 8 – Debt SWK Residual Royalty Agreement On March 5, 2018, the Company entered into a Credit Agreement (as amended, the “Credit Agreement”) with the financial institutions party thereto from time to time (the “Lenders”) and SWK Funding LLC, as agent for the Lenders (the “Agent”), for a synthetic royalty financing transaction. On and subject to the terms of the Credit Agreement, the Lenders provided the Company with a term loan of $10.0 million, which was advanced to the Company on the date of the Credit Agreement. The Company repaid the loan and return premium specified in the Credit Agreement in August 2021, and as a result has no further obligations under the Credit Agreement. The Agent has released its security interest in Company collateral previously pledged to secure its obligations under the Credit Agreement. In connection with the Credit Agreement, the Company and the Agent also entered into a Residual Royalty Agreement, dated as of March 5, 2018 (as amended, the “Residual Royalty Agreement”), which provides for an ongoing royalty payment of 5% of product revenue from net sales of FC2. The Residual Royalty Agreement will terminate upon (i) a change of control or sale of the FC2 business and the payment by the Company of the amount due in connection therewith pursuant to the Residual Royalty Agreement, or (ii) mutual agreement of the parties. If a change of control or sale of the FC2 business occurs, the Agent will receive a payment that is the greater of (A) $2.0 million or (B) the product of (x) 5% of the product revenue from net sales of FC2 for the most recently completed 12-month period multiplied by (y) five. In connection with the closing of the FC2 Business Sale, on December 30, 2024, the Company made a change of control payment of $4.2 million to SWK pursuant to the Residual Royalty Agreement, and upon such payment, the Residual Royalty Agreement terminated in accordance with its terms. The Company recognized a gain on extinguishment of debt of $8.6 million for the difference between the change of control payment of $4.2 million and the net carrying amount of the extinguished debt, which included an embedded derivative for the change of control provision at fair value. For accounting purposes, the $10.0 million advance under the Credit Agreement was allocated between the Credit Agreement and the Residual Royalty Agreement on a relative fair value basis. A portion of the amount allocated to the Residual Royalty Agreement, equal to the fair value of the respective change of control provisions, was allocated to the embedded derivative liability. The derivative liability was adjusted to fair market value at each reporting period. The loss associated with the change in fair value of the embedded derivatives was included within net loss from discontinued operations on the accompanying consolidated statement of operations for the three months ended December 31, 2024. It was included in discontinued operations because the related debt was required to be repaid as a result of the FC2 Business Sale. At March 31, 2026 and September 30, 2025, there were no balances remaining related to the Residual Royalty Agreement liability.

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