| Schedule of significant segment expenses |
| | | | | | | | | | | | | | | | Three months ended June 30, | | | Six Months Ended June 30, | | | 2026 | | 2025 | | | 2026 | | 2025 | Core revenue | | $ | 6,503 | | $ | 8,198 | | | $ | 12,721 | | $ | 16,441 | Non-core revenue | | | 768 | | | 309 | | | | 4,201 | | | 2,456 | Total revenue | | | 7,271 | | | 8,507 | | | | 16,922 | | | 18,897 | Cost of goods sold | | | 1,675 | | | 1,519 | | | | 3,244 | | | 3,016 | Gross profit | | | 5,596 | | | 6,988 | | | | 13,678 | | | 15,881 | | | | | | | | | | | | | | | Expenses: | | | | | | | | | | | | | | Research and development | | | 4,062 | | | 5,671 | | | | 7,772 | | | 10,941 | Sales and marketing | | | 3,107 | | | 5,146 | | | | 6,274 | | | 10,254 | General and administrative | | | 6,546 | | | 5,804 | | | | 11,779 | | | 12,514 | Depreciation and amortization | | | 953 | | | 1,080 | | | | 1,969 | | | 2,141 | Stock-based compensation | | | 1,160 | | | 3,514 | | | | 2,301 | | | 6,553 | Total operating expenses | | | 15,828 | | | 21,215 | | | | 30,095 | | | 42,403 | | | | | | | | | | | | | | | Other income | | | 1,358 | | | 1,870 | | | | 2,793 | | | 3,904 | | | | | | | | | | | | | | | Net loss | | $ | (8,874) | | $ | (12,357) | | | $ | (13,624) | | $ | (22,618) |
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| Schedule of revenue by geographic location |
| | | | | | | | | | | | | | | | Three Months Ended June 30, | | | Six Months Ended June 30, | | | 2026 | | 2025 | | | 2026 | | 2025 | Revenue | | | | | | | | | | | | | | Inside the United States | | $ | 4,630 | | $ | 5,313 | | | $ | 11,246 | | $ | 13,347 | Outside the United States | | | 2,641 | | | 3,194 | | | | 5,676 | | | 5,550 | Total revenue | | $ | 7,271 | | $ | 8,507 | | | $ | 16,922 | | $ | 18,897 |
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