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Note 5 - Property and Equipment, Net | 6 Months Ended
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Jun. 30, 2024
Notes to Financial Statements |
Property, Plant and Equipment Disclosure [Text Block] | 5. PROPERTY AND EQUIPMENT, NET Property and equipment consisted of the following:
|  | June 30, 2024 |  |  | December 31, 2023 |
Production and lab equipment |  | $ | 542 |  |  | $ | 542 |
Tooling |  |  | 572 |  |  |  | 562 |
Computer equipment |  |  | 618 |  |  |  | 615 |
Furniture, fixtures and improvements |  |  | 196 |  |  |  | 196 |
|  | $ | 1,928 |  |  | $ | 1,915 |
Accumulated depreciation |  |  | (1,636 | ) |  |  | (1,406 | )
Property and equipment, net |  | $ | 292 |  |  | $ | 509 |
Depreciation expense was $114 and $230 for the three and six months ended June 30, 2024, respectively, and $118 and $236 for the three and six months ended June 30, 2023, respectively.

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