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Note 3 - Net Loss Per Share | 9 Months Ended
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Sep. 30, 2024
Notes to Financial Statements |
Earnings Per Share [Text Block] | Note 3—Net Loss Per Share Basic net income (loss) per share (“Basic EPS”) is computed by dividing net income (loss) by the weighted average number of common shares outstanding during the period. Diluted net income (loss) per share (“Diluted EPS”) is computed by dividing net income (loss) by the weighted average number of common shares and potentially dilutive common shares outstanding during the period using the treasury stock method. We do not compute Diluted EPS for periods in which we have overall net income and a net loss from continuing operations. Potentially dilutive securities are as follows:
​ |  | Three Months Ended |  |  | Nine Months Ended |
​ |  | September 30, |  |  | September 30, |
​ |  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
2026 Notes convertible to common stock (1)(2) |  |  | 5,293,414 |  |  |  | 12,172,008 |  |  |  | 8,882,651 |  |  |  | 12,172,008 |
2023 Notes convertible to common stock (3) |  |  | — |  |  |  | 4,941,739 |  |  |  | — |  |  |  | 4,941,739 |
Outstanding options to purchase common stock |  |  | 176,121 |  |  |  | 34,450 |  |  |  | 108,507 |  |  |  | 37,394 |
Outstanding restricted stock units(4) |  |  | — |  |  |  | 70,250 |  |  |  | — |  |  |  | 70,250 |
Total potentially dilutive shares excluded from net loss per share |  |  | 5,469,535 |  |  |  | 17,218,447 |  |  |  | 8,991,158 |  |  |  | 17,221,391 |
| (1) | The 2026 Notes are subject to a capped call arrangements that potentially reduces the dilutive effect of conversion as described in “Note 6 — Debt.” Any potential impact of the capped call arrangement is excluded from this table.
| (2) | On June 3, 2024, we repurchased $118.1 million of our 2026 Notes reducing any effect of dilution related to those notes. For further details refer to “Note 6 — Debt.”
| (3) | The 2023 Notes (defined below) were fully extinguished upon maturity on November 15, 2023.
| (4) | The outstanding restricted stock units were vested and converted to shares of common stock on December 1, 2023.

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