Note 4 - Balance Sheet Components (Tables)
|
9 Months Ended |
Sep. 30, 2024 |
Notes Tables |
|
Cash, Cash Equivalents and Investments [Table Text Block] |
| | Amortized | | | Gross Unrealized | | | Estimated | | | Cash and Cash | | | Short-Term | |
| | Cost | | | Gains | | | Losses | | | Fair Value | | | Equivalents | | | Investments | |
September 30, 2024 | | | | | | | | | | | | | | | | | | | | | | | | |
Cash at banks | | $ | 3,477 | | | $ | — | | | $ | — | | | $ | 3,477 | | | $ | 3,477 | | | $ | — | |
Money market funds | | | 18,558 | | | | — | | | | — | | | | 18,558 | | | | 18,558 | | | | — | |
U.S. Treasury securities | | | 33,997 | | | | 22 | | | | — | | | | 34,019 | | | | — | | | | 34,019 | |
Commercial paper | | | 2,652 | | | | 5 | | | | — | | | | 2,657 | | | | — | | | | 2,657 | |
Total | | $ | 58,684 | | | $ | 27 | | | $ | — | | | $ | 58,711 | | | $ | 22,035 | | | $ | 36,676 | |
| | Amortized | | | Gross Unrealized | | | Estimated | | | Cash and Cash | | | Short-Term | |
| | Cost | | | Gains | | | Losses | | | Fair Value | | | Equivalents | | | Investments | |
December 31, 2023 | | | | | | | | | | | | | | | | | | | | | | | | |
Cash at banks | | $ | 3,352 | | | $ | — | | | $ | — | | | $ | 3,352 | | | $ | 3,352 | | | $ | — | |
Money market funds | | | 31,403 | | | | — | | | | — | | | | 31,403 | | | | 31,403 | | | | — | |
U.S. Treasury securities | | | 4,959 | | | | — | | | | (1 | ) | | | 4,958 | | | | — | | | | 4,958 | |
Total | | $ | 39,714 | | | $ | — | | | $ | (1 | ) | | $ | 39,713 | | | $ | 34,755 | | | $ | 4,958 | |
|
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block] |
| | September 30, 2024 | | | December 31, 2023 | |
| | | | | | | | |
Prepaid clinical and manufacturing expenses | | $ | 1,637 | | | $ | 984 | |
Prepaid insurance | | | 488 | | | | 258 | |
Prepaid rent | | | 517 | | | | 488 | |
Other prepaid | | | 988 | | | | 752 | |
Other current assets | | | 439 | | | | 333 | |
Prepaid expenses and other current assets | | $ | 4,069 | | | $ | 2,815 | |
|
Property, Plant and Equipment [Table Text Block] |
| | September 30, 2024 | | | December 31, 2023 | |
| | | | | | | | |
Laboratory equipment | | $ | 13,714 | | | $ | 13,448 | |
Office and computer equipment | | | 1,120 | | | | 1,105 | |
Leasehold improvements | | | 4,089 | | | | 3,985 | |
Construction in progress | | | 141 | | | | 24 | |
Total property and equipment | | | 19,064 | | | | 18,562 | |
Less: accumulated depreciation | | | (9,588 | ) | | | (6,831 | ) |
Property and equipment, net | | $ | 9,476 | | | $ | 11,731 | |
|
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
| | September 30, 2024 | | | December 31, 2023 | |
| | | | | | | | |
Developed technology | | $ | 5,000 | | | $ | 5,000 | |
Intellectual property | | | 80 | | | | 80 | |
Total cost | | | 5,080 | | | | 5,080 | |
Less: accumulated amortization | | | (1,340 | ) | | | (791 | ) |
Intangible assets, net | | $ | 3,740 | | | $ | 4,289 | |
|
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
Year Ending December 31, | | Amount | |
2024 (three months remaining) | | $ | 182 | |
2025 | | | 732 | |
2026 | | | 731 | |
2027 | | | 731 | |
2028 | | | 727 | |
Thereafter | | | 637 | |
Total | | $ | 3,740 | |
|
Schedule of Accrued Liabilities [Table Text Block] |
| | September 30, 2024 | | | December 31, 2023 | |
| | | | | | | | |
Accrued compensation | | $ | 4,511 | | | $ | 4,576 | |
Accrued clinical and manufacturing expenses | | | 1,309 | | | | 312 | |
Accrued professional and consulting services | | | 371 | | | | 211 | |
Other liabilities, current portion | | | 573 | | | | 535 | |
Total | | $ | 6,764 | | | $ | 5,634 | |
|