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Financial Statement Details (Tables) | 12 Months Ended
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Dec. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Inventories | Inventories consist of the following (in thousands):
| December 31,
| 2025 |  | 2024
Finished goods | $ | 7,726 |  |  | $ | 13,531 |
Raw materials and components | — |  |  | 44 |
Total inventories | $ | 7,726 |  |  | $ | 13,575 |
Schedule of Prepaid Expenses and Other | Prepaid expenses and other consists of the following (in thousands):
| December 31,
| 2025 |  | 2024
Rebate receivables | $ | 2,608 |  |  | $ | 3,495 |
Receivables from contract manufacturers | 1,494 |  |  | 13 |
Other | 2,287 |  |  | 2,418 |
Total prepaid expenses and other | $ | 6,389 |  |  | $ | 5,926 |
Schedule of Property, Plant and Equipment and Rental Assets | Property, plant and equipment consists of the following (in thousands):
| December 31,
| 2025 |  | 2024
Test equipment | $ | 16,213 |  |  | $ | 19,600 |
Computer equipment and purchased software | 4,234 |  |  | 3,711 |
Product tooling | 5,197 |  |  | 5,182 |
Furniture and fixtures | 739 |  |  | 739 |
Leasehold improvements | 767 |  |  | 767 |
Total property, plant and equipment, gross | 27,150 |  |  | 29,999 |
Less—accumulated depreciation and amortization | (26,063) |  |  | (28,897) |
Total property, plant and equipment, net | $ | 1,087 |  |  | $ | 1,102 |
Schedule of Accrued Expenses and Other Current Liabilities | Accrued expenses and other current liabilities consist of the following (in thousands):
| December 31,
| 2025 |  | 2024
Deferred revenue | $ | 6,168 |  |  | $ | 9,245 |
Payroll and related expenses | 6,796 |  |  | 7,997 |
Accrued contract manufacturing liabilities | 5,874 |  |  | 4,772 |
Operating lease liabilities | 968 |  |  | 1,346 |
Royalties | 884 |  |  | 954 |
Accrued interest | 914 |  |  | 926 |
Other | 3,252 |  |  | 4,893 |
Total accrued expenses and other current liabilities | $ | 24,856 |  |  | $ | 30,133 |
Schedule of Other Long-term Liabilities | Other long-term liabilities consist of the following (in thousands):
| December 31,
| 2025 |  | 2024
Long-term deferred revenue | $ | 4,558 |  |  | $ | 4,608 |
Other | 147 |  |  | 147 |
Total other long-term liabilities | $ | 4,705 |  |  | $ | 4,755 |

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