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Note 5 - Property and Equipment | 9 Months Ended
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Sep. 30, 2025
Notes to Financial Statements |
Property, Plant and Equipment Disclosure [Text Block] | NOTE 5. PROPERTY AND EQUIPMENT Property and equipment consisted of the following (in thousands):
|  | September 30, |  |  | December 31, |
|  | 2025 |  |  | 2024 |
Office and laboratory equipment |  | $ | 20 |  |  | $ | 20 |
Furniture and fixtures |  |  | 73 |  |  |  | 157 |
Computer equipment and software |  |  | 126 |  |  |  | 389 |
Leasehold improvements |  |  | 185 |  |  |  | 152 |
Total property and equipment, at cost |  |  | 404 |  |  |  | 718 |
Less: Impairments |  |  | (33 | ) |  |  | — |
Less: Accumulated depreciation |  |  | (365 | ) |  |  | (674 | )
Total property and equipment, net |  | $ | 6 |  |  | $ | 44 |
Depreciation expense related to continuing operations was $1 thousand for both the three months ended September 30, 2025 and 2024, and $5 thousand and $24 thousand for the nine months ended September 30, 2025 and 2024, respectively. The Company disposed of damaged, unusable and fully depreciated property and equipment with a cost of approximately $209 thousand and $346 thousand during the three and nine months ended September 30, 2025, respectively, with no comparable adjustments for the three and nine months ended September 30, 2024. Additionally, the Company impaired $3 and $33 thousand of its remaining fixed assets due to the uncertainty associated with its operations and its exploration of strategic alternatives during the three and nine months ended September 30, 2025, respectively.

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