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Note 7 - Stockholders' Equity | 3 Months Ended
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Sep. 30, 2025
Notes to Financial Statements |
Equity [Text Block] | (7) Stockholders’ Equity Preferred Stock The Company has issued 280,898 shares of Series D convertible preferred stock (“Series D Preferred Shares”), all of which were issued and outstanding as of September 30, 2025. Series D Preferred Shares are convertible to common stock on a one-to-thirty basis. Series D Preferred Shares are not callable by the Company. The holder of the preferred stock is entitled to receive, and we shall pay, dividends on shares equal to and in the same form as dividends actually paid on shares of common stock when, and if, such dividends are paid on shares of common stock. No other dividends are paid on the preferred shares. Preferred shares have no voting rights. Upon liquidation, dissolution, or winding-up of the Company, whether voluntary or involuntary, the preferred shares have preference over common stock. The holder of Series D Preferred Shares has the option to convert said shares to common stock at the holder’s discretion. Common Stock The Company has issued 1,769,269 shares of common stock and has outstanding shares of common stock of 1,758,953 as of September 30, 2025. Treasury shares of 10,316 are the difference between issued and outstanding shares. We did not issue common stock during the three months ended September 30, 2025. Rights Plan On December 21, 2022, the Company’s Board of Directors adopted a limited duration stockholder rights plan (the “Rights Plan”) expiring December 20, 2023 and declared a dividend of one preferred share purchase right for each outstanding share of common stock to stockholders of record on January 5, 2023 to purchase from the Company one one-thousandth of a share of Series A Junior Participating Preferred Stock, par value $0.001 per share, of the Company for an exercise price of $58.00 once the rights become exercisable, subject to the terms of and adjustment as provided in the related rights agreement. On December 18, 2023, the Company entered into Amendment No. 1 to Rights Agreement between the Company and Equiniti Trust Company, as Rights Agent (the "Amendment"), which extended the Final Expiration Date (as defined in the Rights Plan) to December 20, 2024. On December 12, 2024, the Company entered into Amendment No. 2 to the Rights Agreement between the Company and the Rights Agent, which extends the Final Expiration Date to December 20, 2025, unless the Final Expiration Date is further extended by the Company or the rights subject to the Rights Plan are earlier redeemed or exchanged by the Company in accordance with the terms of the Rights Plan. All other terms and conditions of the Rights Plan remain unchanged. Warrants A summary of the common stock warrant activity for the three months ended September 30, 2025, is presented below:
|  | Number of Shares Underlying Warrants (In thousands) |  |  | Weighted Average Exercise Price |  |  | Aggregate Fair Market Value at Issuance (In thousands) |  |  | Weighted Average Remaining Contractual Term (Years) |
Outstanding June 30, 2025 |  |  | 77 |  |  | $ | 69.04 |  |  | $ | 3,553 |  |  |  | 0.63 |
Warrants issued |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Warrants exercised |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Warrants expired |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Outstanding September 30, 2025 |  |  | 77 |  |  | $ | 69.04 |  |  | $ | 3,553 |  |  |  | 0.38 |

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