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Note 5 - Property and Equipment, Net | 9 Months Ended
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Sep. 30, 2023
Notes to Financial Statements |
Property, Plant and Equipment Disclosure [Text Block] | 5. PROPERTY AND EQUIPMENT, NET Property and equipment consisted of the following:
|  | September 30, 2023 |  |  | December 31, 2022 |
Production and lab equipment |  | $ | 536 |  |  | $ | 513 |
Tooling |  |  | 505 |  |  |  | 448 |
Computer equipment |  |  | 587 |  |  |  | 531 |
Furniture, fixtures and improvements |  |  | 190 |  |  |  | 181 |
|  |  | 1,818 |  |  |  | 1,673 |
Accumulated depreciation |  |  | (1,285 | ) |  |  | (915 | )
Property and equipment, net |  | $ | 533 |  |  | $ | 758 |
Depreciation expense was $122 and $358 for the three and nine months ended September 30, 2023, respectively, and $121 and $359 for the three and nine months ended September 30, 2022, respectively.

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