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BALANCE SHEET COMPONENTS | 9 Months Ended
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Sep. 30, 2025
BALANCE SHEET COMPONENTS |
BALANCE SHEET COMPONENTS |
| 3. | BALANCE SHEET COMPONENTS
Inventories The Company had the following major classes of inventories: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | September 30, 2025 |  | December 31, 2024
​ | ​ | (amounts, in thousands)
Raw materials | ​ | $ | 565 | ​ | $ | 570
Work in process | ​ |  | 1,130 | ​ |  | 503
Finished goods | ​ |  | 2,307 | ​ |  | 1,660
Inventories | ​ | $ | 4,002 | ​ | $ | 2,733
​ Property and equipment, net The Company’s property and equipment consist of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Depreciation/
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Amortization
​ |  | September 30, 2025 |  | December 31, 2024 |  | Period
​ | ​ | (amounts, in thousands) | ​ | ​
Furniture and fixtures | ​ | $ | 1,612 | ​ | $ | 1,454 |  | 7 years
Equipment and computers | ​ |  | 5,562 | ​ |  | 5,491 |  | 3 to 7 years
Leasehold improvements | ​ |  | 6,308 | ​ |  | 6,283 |  | Lesser of term of lease or estimated useful life
​ | ​ |  | 13,482 | ​ |  | 13,228 | ​ | ​
Less accumulated depreciation and amortization | ​ |  | 5,289 | ​ |  | 4,226 |  |
Property and equipment, net | ​ | $ | 8,193 | ​ | $ | 9,002 |  |
​ Depreciation expense for the nine months ended September 30, 2025 and 2024 amounted to $0.9 million and $1.0 million, respectively. Depreciation expense for each of the three months ended September 30, 2025 and 2024 amounted to $0.3 million. Other assets Other assets consist of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | September 30, 2025 |  | December 31, 2024
​ | ​ | (amounts, in thousands)
Patent applications pending | ​ | $ | 1,539 | ​ | $ | 1,612
Patents issued | ​ |  | 3,501 | ​ |  | 3,391
Less accumulated amortization of patents issued | ​ |  | (1,448) | ​ |  | (1,255)
Patents, net | ​ |  | 3,592 | ​ |  | 3,748
Other | ​ |  | 55 | ​ |  | 23
Other assets | ​ | $ | 3,647 | ​ | $ | 3,771
​ Patent amortization expenses amounted to $0.2 million each for the nine months ended September 30, 2025 and 2024. Patent amortization expense amounted to $0.1 million each for the three months ended September 30, 2025 and 2024. Patent amortization expense for the next five years and thereafter is scheduled as follows: ​
​ | ​ | ​ | ​
​ | ​ | (amounts, in thousands)
Remainder of 2025 |  | $ | 66
2026 | ​ |  | 258
2027 | ​ |  | 253
2028 | ​ |  | 240
2029 | ​ |  | 240
Thereafter | ​ |  | 996
Scheduled amortization of patents issued | ​ | $ | 2,053
​ Accrued expenses and other current liabilities Accrued expenses and other current liabilities consist of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | September 30, 2025 |  | December 31, 2024
​ | ​ | (amounts, in thousands)
Accrued salaries and commissions | ​ | $ | 3,464 | ​ | $ | 3,076
Clinical studies | ​ |  | 594 | ​ |  | 590
Deferred revenue and contract liabilities | ​ |  | 403 | ​ |  | 596
Professional fees | ​ | ​ | 738 | ​ | ​ | 773
Royalties | ​ | ​ | 282 | ​ | ​ | 275
Goods received not invoiced | ​ | ​ | 6 | ​ | ​ | 87
Accrued operating expenses | ​ |  | 1,072 | ​ |  | 635
Accrued expenses and other current liabilities | ​ | $ | 6,559 | ​ | $ | 6,032
​

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