Note 10 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands |
Dec. 31, 2022 |
Dec. 31, 2021 |
|---|---|---|
| Research and Development Contracts [Member] | ||
| Contractual Obligation, to be Paid, Year One | $ 4,000 | |
| Contractual Obligation, to be Paid, Year Two | 3,000 | |
| Indemnification Agreements [Member] | ||
| Contractual Obligation, Total | $ 0 | $ 0 |
| X | ||||||||||
- Definition Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. No definition available.
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| X | ||||||||||
- Definition Amount of contractual obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). No definition available.
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| X | ||||||||||
- Definition Amount of contractual obligation to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). No definition available.
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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