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Balance Sheet Components (Tables) | 6 Months Ended
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Jun. 30, 2025
Balance Sheet Components |
Schedule of Inventory | Inventory consisted of the following (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31,
​ |  | 2025 |  | 2024
Raw materials | ​ | $ | 232 | ​ | $ | 238
Work-in-process | ​ |  | 9,821 | ​ |  | 7,510
Finished goods | ​ |  | 1,253 | ​ |  | 1,362
Total inventory | ​ | $ | 11,306 | ​ | $ | 9,110
Schedule of property and equipment, net | Property and equipment, net consisted of the following (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31,
​ |  | 2025 |  | 2024
Manufacturing equipment | ​ | $ | 15,170 | ​ | $ | 14,199
Computer and network equipment | ​ | ​ | 583 | ​ | ​ | 602
Furniture and fixtures | ​ | ​ | 113 | ​ | ​ | 113
Construction in Progress | ​ | ​ | 319 | ​ | ​ | —
Leasehold improvements | ​ | ​ | 1,476 | ​ | ​ | 1,476
Total property and equipment, gross | ​ | ​ | 17,661 | ​ | ​ | 16,390
Less: accumulated depreciation | ​ | ​ | (13,817) | ​ | ​ | (13,170)
Total property and equipment, net | ​ | $ | 3,844 | ​ | $ | 3,220
​ | ​ | ​ | ​ | ​ | ​ | ​
Schedule of Intangible Assets, Net | The gross carrying amounts and accumulated amortization of intangible assets are as follows at the dates indicated (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2025
​ | ​ | Weighted- | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Average | ​ | ​ | ​ | ​ | ​ | ​ | Net
​ | ​ | Life | ​ | ​ | Gross Carrying | ​ | Accumulated | ​ | Carrying
​ | ​ | (in years) |  | ​ | Amount |  | Amortization |  | Amount
Internal-use software | ​ | 1.5 | ​ | $ | 4,409 | ​ | $ | (1,858) | ​ | $ | 2,551
Total intangible assets | ​ | ​ | ​ | $ | 4,409 | ​ | $ | (1,858) | ​ | $ | 2,551
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2024
​ | ​ | Weighted- | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Average | ​ | ​ | ​ | ​ | ​ | ​ | Net
​ | ​ | Life | ​ | ​ | Gross Carrying | ​ | Accumulated | ​ | Carrying
​ | ​ | (in years) |  | ​ | Amount |  | Amortization |  | Amount
Internal-use software | ​ | 2.0 | ​ | $ | 4,389 | ​ | $ | (973) | ​ | $ | 3,416
Total intangible assets | ​ | ​ | ​ | $ | 4,389 | ​ | $ | (973) | ​ | $ | 3,416
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Schedule of accrued liabilities | Accrued liabilities consisted of the following (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31,
​ |  | 2025 |  | 2024
Payroll-related expenses | ​ | $ | 1,578 | ​ | $ | 1,606
Inventory | ​ | ​ | 199 | ​ | ​ | 157
Other | ​ |  | 476 | ​ |  | 686
Total accrued liabilities | ​ | $ | 2,253 | ​ | $ | 2,449
​ | ​ | ​ | ​ | ​ | ​ | ​

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