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Note 5 - Accrued Expenses (Tables) | 12 Months Ended
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Dec. 31, 2021
Notes Tables |
Schedule of Accrued Liabilities [Table Text Block] |
|  | 2021 |  |  | 2020 |
Accrued compensation and related expenses |  | $ | 480 |  |  | $ | 443 |
Accrued professional fees |  |  | 163 |  |  |  | 174 |
Accrued clinical trial expenses |  |  | 618 |  |  |  | 497 |
Other |  |  | 113 |  |  |  | 237 |
|  | $ | 1,374 |  |  | $ | 1,351 |

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- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
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- References No definition available. + Details
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