Revenue from External Customers by Products and Services [Table Text Block] | | | | | | | | | | | | | | | | | | | | | Neural interface components and systems | | $ | 5,152 | | | $ | 3,920 | | | | | 4,162 | | | | 1,318 | | Development and engineering service | | | 3,221 | | | | — | | | | $ | 12,535 | | | $ | 5,238 | | |
Schedule of Segment Reporting Information, by Segment [Table Text Block] | | | | | | | | | | | | | | | | | | | | | | | $ | 7,383 | | | $ | 1,318 | | | | | 5,152 | | | | 3,920 | | | | $ | 12,535 | | | $ | 5,238 | | | | | | | | | | | | | Segment loss from operations: | | | | | | | | | | | $ | (37,702 | | | $ | (23,452 | | | | | 300 | | | | (964 | | Total segment loss from operations | | | (37,402 | | | | (24,416 | | Unallocated operating expenses | | | — | | | | — | | | | | (37,402 | | | | (24,416 | | Unallocated other income (expense), net | | | (1,026 | | | | — | | Loss before provision for income taxes | | $ | (38,428 | | | $ | (24,416 | | | | | | | | | | | | | Depreciation and amortization: | | | | | | | | | | | $ | 1,908 | | | $ | 257 | | | | | 335 | | | | 330 | | Total depreciation and amortization included in segment income from operations | | | 2,243 | | | | 587 | | Unallocated depreciation and amortization | | | — | | | | — | | Total depreciation and amortization | | $ | 2,243 | | | $ | 587 | | | | | | | | | | | | | Expenditures for tangible long-lived assets: | | | | | | | | | | | $ | 3,950 | | | $ | 511 | | | | | 81 | | | | 18 | | Total reportable segments | | | 4,031 | | | | 529 | | Unallocated tangible long-lived assets | | | — | | | | — | | | | $ | 4,031 | | | $ | 529 | | | | | | | | | | | | | | | | | | | | | | | | $ | 111,503 | | | $ | 37,762 | | | | | 7,799 | | | | 7,636 | | Total reportable segments | | | 119,302 | | | | 45,398 | | | | | — | | | | — | | | | $ | 119,302 | | | $ | 45,398 | | |
Revenue from External Customers by Geographic Areas [Table Text Block] | | | | | | | | | | | | Sales by geographic area: | | | | | | | | | | | $ | 5,800 | | | $ | 2,060 | | | | | | | | | | | | | | 3,461 | | | | 83 | | | | | 1,567 | | | | 1,668 | | | | | 1,707 | | | | 1,427 | | | | | | | | | | | | | $ | 12,535 | | | $ | 5,238 | | |