Note 4 - Income (Loss) Per Share	3 Months Ended
Mar. 31, 2025
Notes to Financial Statements
Earnings Per Share [Text Block]	NOTE 4 EARNINGS (LOSS) PER SHARE Basic income (loss) per share is computed by dividing our net income (loss) by the weighted average number of shares of our Common Stock outstanding during the period. Shares of Common Stock outstanding under the share lending arrangement entered into in conjunction with the 2025 Notes (as defined in Note 7) have been excluded from the calculation of basic and diluted earnings per share because the borrower of the shares is required under the share lending arrangement to refund any dividends paid on the shares lent. We terminated the share lending agreement on January 22, 2024. Refer to Note 7. For diluted earnings per share, the dilutive impact of stock options and warrants is determined by applying the “treasury stock” method. The dilutive impact of the 2029 Convertible Notes, 2033 Senior Notes, the 2023 Convertible Notes and the 2025 Notes (each, as defined and discussed in Note 7) has been considered using the “if converted” method. For periods in which their effect would have been antidilutive, no effect is given in the dilutive computation to Common Stock issuable under outstanding options or warrants or the potentially dilutive shares issuable pursuant to the 2029 Convertible Notes, 2033 Senior Notes, the 2023 Convertible Notes and the 2025 Notes. A total of 261,277,459 and 296,587,793 potential shares of Common Stock were excluded from the calculation of diluted net loss per share for the three months ended March 31, 2025 and 2024, respectively, because their inclusion would have been antidilutive. A full presentation of diluted earnings per share has not been provided because the required adjustments to the numerator and denominator resulted in diluted earnings per share being equivalent to basic earnings per share. During the three months ended March 31, 2025, 56,250 options were exercised, and no restricted stock units vested, resulting in the issuance of 56,250 shares of Common Stock. During the three months ended March 31, 2024, no options were exercised, and no restricted stock units vested, resulting in the issuance of no shares of Common Stock.

Note 4 - Income (Loss) Per Share

3 Months Ended

Mar. 31, 2025

NOTE 4 EARNINGS (LOSS) PER SHARE

Basic income (loss) per share is computed by dividing our net income (loss) by the weighted average number of shares of our Common Stock outstanding during the period. Shares of Common Stock outstanding under the share lending arrangement entered into in conjunction with the 2025 Notes (as defined in Note 7) have been excluded from the calculation of basic and diluted earnings per share because the borrower of the shares is required under the share lending arrangement to refund any dividends paid on the shares lent. We terminated the share lending agreement on January 22, 2024. Refer to Note 7. For diluted earnings per share, the dilutive impact of stock options and warrants is determined by applying the “treasury stock” method. The dilutive impact of the 2029 Convertible Notes, 2033 Senior Notes, the 2023 Convertible Notes and the 2025 Notes (each, as defined and discussed in Note 7) has been considered using the “if converted” method. For periods in which their effect would have been antidilutive, no effect is given in the dilutive computation to Common Stock issuable under outstanding options or warrants or the potentially dilutive shares issuable pursuant to the 2029 Convertible Notes, 2033 Senior Notes, the 2023 Convertible Notes and the 2025 Notes.

A total of 261,277,459 and 296,587,793 potential shares of Common Stock were excluded from the calculation of diluted net loss per share for the three months ended March 31, 2025 and 2024, respectively, because their inclusion would have been antidilutive. A full presentation of diluted earnings per share has not been provided because the required adjustments to the numerator and denominator resulted in diluted earnings per share being equivalent to basic earnings per share.

During the three months ended March 31, 2025, 56,250 options were exercised, and no restricted stock units vested, resulting in the issuance of 56,250 shares of Common Stock.

During the three months ended March 31, 2024, no options were exercised, and no restricted stock units vested, resulting in the issuance of no shares of Common Stock.