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v3.25.3

Note 2 - Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2025
Notes Tables |
Schedule of Segment Reporting Information, by Segment [Table Text Block] |
|  | For the Three Months Ended September 30, |  |  | For the Nine Months Ended September 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Cost of sales |  | $ | 12,173 |  |  | $ | 29,097 |  |  | $ | 35,030 |  |  | $ | 50,483 |
General and administrative |  |  | 6,142 |  |  |  | 6,136 |  |  |  | 18,860 |  |  |  | 30,074 |
Commercialization |  |  | 9,623 |  |  |  | 9,241 |  |  |  | 30,330 |  |  |  | 29,139 |
Research and development: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Clinical research and development |  |  | 7,789 |  |  |  | 5,667 |  |  |  | 21,881 |  |  |  | 16,547 |
Medical affairs |  |  | 1,323 |  |  |  | 1,220 |  |  |  | 4,107 |  |  |  | 3,414 |
Other research and development (1) |  |  | 6,179 |  |  |  | 5,048 |  |  |  | 17,190 |  |  |  | 17,640 |
Operating costs and expenses |  |  | 43,229 |  |  |  | 56,409 |  |  |  | 127,398 |  |  |  | 147,297 |
Stock based compensation |  |  | 1,673 |  |  |  | 2,054 |  |  |  | 5,327 |  |  |  | 6,493 |
Total operating costs and expenses |  | $ | 44,902 |  |  | $ | 58,463 |  |  | $ | 132,725 |  |  | $ | 153,790 |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] |
|  | For the Three Months Ended |  |  | For the Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Options outstanding |  |  | 2,947,276 |  |  |  | 3,850,575 |  |  |  | 3,718,413 |  |  |  | 3,850,575 |
Warrant outstanding |  |  | 2,116,250 |  |  |  | 2,116,250 |  |  |  | 2,116,250 |  |  |  | 2,116,250 |
Unvested restricted stock units |  |  | 229,495 |  |  |  | 751,139 |  |  |  | 354,821 |  |  |  | 751,139 |
Totals |  |  | 5,293,021 |  |  |  | 6,717,964 |  |  |  | 6,189,484 |  |  |  | 6,717,964 |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | For the Three Months Ended September 30, |  |  | For the Nine Months Ended September 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 8,844 |  |  | $ | 20,317 |  |  | $ | 17,673 |  |  | $ | 10,973 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common stock outstanding for basic net income per share |  |  | 50,339,456 |  |  |  | 49,008,464 |  |  |  | 49,881,181 |  |  |  | 48,498,579 |
Net effect of dilutive common stock equivalents |  |  | 590,437 |  |  |  | 164,897 |  |  |  | 453,372 |  |  |  | 526,524 |
Weighted average common stock outstanding for diluted net income per share |  |  | 50,929,893 |  |  |  | 49,173,361 |  |  |  | 50,334,553 |  |  |  | 49,025,103 |
Net income per share of common stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.18 |  |  | $ | 0.41 |  |  | $ | 0.35 |  |  | $ | 0.23 |
Diluted |  | $ | 0.17 |  |  | $ | 0.41 |  |  | $ | 0.35 |  |  | $ | 0.22 |
Fair Value, Assets Measured on Recurring Basis [Table Text Block] |
September 30, 2025 |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Cash equivalents |  | $ | 8,007 |  |  | $ | 39,574 |  |  | $ | — |  |  | $ | 47,581 |
U.S. Government securities |  |  | 20,449 |  |  |  | — |  |  |  | — |  |  |  | 20,449 |
Corporate Bonds |  |  | — |  |  |  | 962 |  |  |  | — |  |  |  | 962 |
Commercial paper |  |  | — |  |  |  | 19,452 |  |  |  | — |  |  |  | 19,452 |
|  | $ | 28,456 |  |  | $ | 59,988 |  |  | $ | — |  |  | $ | 88,444 |
December 31, 2024 |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Cash equivalents |  | $ | 16,996 |  |  | $ | 38,102 |  |  | $ | — |  |  | $ | 55,098 |
U.S. Government securities |  |  | 17,568 |  |  |  | — |  |  |  | — |  |  | $ | 17,568 |
Commercial paper |  |  | — |  |  |  | 14,178 |  |  |  | — |  |  |  | 14,178 |
Totals |  | $ | 34,564 |  |  | $ | 52,280 |  |  | $ | — |  |  | $ | 86,844 |
Cash, Cash Equivalent, and Investment [Table Text Block] |
| Maturity |  | Amortized |  |  | Unrealized |  |  | Estimated |
September 30, 2025 | (in years) |  | Cost |  |  | Gains |  |  | Losses |  |  | Fair Value |
Cash equivalents |  | $ | 47,583 |  |  | $ | 1 |  |  | $ | (3 | ) |  | $ | 47,581 |
U.S. Government securities | Less than 1 |  |  | 20,433 |  |  |  | 17 |  |  |  | (1 | ) |  |  | 20,449 |
Corporate Bonds | Less than 1 |  |  | 962 |  |  |  | — |  |  |  | — |  |  |  | 962 |
Commercial paper | Less than 1 |  |  | 19,447 |  |  |  | 7 |  |  |  | (2 | ) |  |  | 19,452 |
Totals |  | $ | 88,425 |  |  | $ | 25 |  |  | $ | (6 | ) |  | $ | 88,444 |
| Maturity |  | Amortized |  |  | Unrealized |  |  | Estimated |
December 31, 2024 | (in years) |  | Cost |  |  | Gains |  |  | Losses |  |  | Fair Value |
Cash equivalents |  | $ | 55,095 |  |  | $ | 3 |  |  | $ | — |  |  | $ | 55,098 |
U.S. Government securities | Less than 1 |  |  | 17,564 |  |  | $ | 6 |  |  | $ | (2 | ) |  | $ | 17,568 |
Commercial paper | Less than 1 |  |  | 14,179 |  |  |  | 7 |  |  |  | (8 | ) |  |  | 14,178 |
Totals |  | $ | 86,838 |  |  | $ | 16 |  |  | $ | (10 | ) |  | $ | 86,844 |
Schedule of Inventory, Current [Table Text Block] |
|  | September 30, 2025 |  |  | December 31, 2024 |
Raw materials |  | $ | 3,642 |  |  | $ | 7,183 |
Work-in-process (materials, labor and overhead) |  |  | 5,395 |  |  |  | 758 |
Finished goods (materials, labor and overhead) |  |  | 439 |  |  |  | 783 |
Total inventories |  | $ | 9,476 |  |  | $ | 8,724 |

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