| Property, Plant and Equipment [Table Text Block] |
| | | December 31, | |
| | | 2021 | | | 2020 | |
| Production and lab equipment | | $ | 500 | | | $ | 148 | |
| Tooling | | | 273 | | | | 81 | |
| Computer equipment | | | 467 | | | | 180 | |
| Furniture, fixtures and improvements | | | 176 | | | | 165 | |
| | | | 1,416 | | | | 574 | |
| Accumulated depreciation | | | (440 | ) | | | (217 | ) |
| Property and equipment, net | | $ | 976 | | | $ | 357 | |
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