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Note 6 - Property and Equipment | 3 Months Ended
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Mar. 31, 2023
Notes to Financial Statements |
Property, Plant and Equipment Disclosure [Text Block] | NOTE 6. PROPERTY AND EQUIPMENT Property and equipment consisted of the following (in thousands):
|  | March 31, |  |  | December 31, |
|  | 2023 |  |  | 2022 |
Office and laboratory equipment |  | $ | 20 |  |  | $ | 20 |
Furniture and fixtures |  |  | 157 |  |  |  | 157 |
Computer equipment and software |  |  | 425 |  |  |  | 412 |
Leasehold improvements |  |  | 152 |  |  |  | 152 |
Total property and equipment, at cost |  |  | 754 |  |  |  | 741 |
Less: accumulated depreciation |  |  | (635 | ) |  |  | (622 | )
Total property and equipment, net |  | $ | 119 |  |  | $ | 119 |
Depreciation expense was $13 thousand and $30 thousand for the three months ended March 31, 2023 and 2022, respectively.

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