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Details of Certain Financial Statement Components (Tables) | 9 Months Ended
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Sep. 30, 2023
Details of Certain Financial Statement Components |
Schedule of inventories | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, | ​ | December 31,
​ |  | 2023 |  | 2022
Inventories |  | (in thousands)
Raw materials |  | $ | 2,398 |  | $ | 1,635
Work-in-process | ​ | ​ | 205 | ​ | ​ | 192
Finished goods | ​ | ​ | 272 | ​ | ​ | 285
Total inventories |  | $ | 2,875 |  | $ | 2,112
Schedule of property, plant and equipment, net | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, | ​ | December 31,
​ |  | 2023 |  | 2022
Property, plant and equipment, net | ​ | (in thousands)
Furniture, machinery and equipment | ​ | $ | 1,910 | ​ | $ | 1,688
Leasehold improvements | ​ |  | 403 | ​ |  | 417
​ | ​ |  | 2,313 | ​ |  | 2,105
Less: accumulated depreciation | ​ |  | (2,008) | ​ |  | (1,921)
Total property, plant and equipment, net | ​ | $ | 305 | ​ | $ | 184
Schedule of intangible assets, net | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, | ​ | December 31,
​ |  | 2023 |  | 2022
Intangible assets, net | ​ | (in thousands)
Patents, tradenames, and trademarks | ​ | $ | 705 | ​ | $ | 658
Developed technology | ​ | ​ | 134 | ​ | ​ | —
Customer relationships | ​ | ​ | 96 | ​ | ​ | —
Non-compete agreements | ​ | ​ | 26 | ​ | ​ | —
Order backlog | ​ | ​ | 22 | ​ | ​ | —
In-process research and development | ​ | ​ | 29 | ​ | ​ | —
​ | ​ | ​ | 1,012 | ​ | ​ | 658
Less: accumulated amortization | ​ |  | (723) | ​ |  | (582)
Total intangible assets, net | ​ | $ | 289 | ​ | $ | 76
Schedule of future amortization on existing intangibles | ​
​ | ​ | ​ | ​
Years ending December 31, |  | (in thousands)
2023 (remainder of year) | ​ | $ | 35
2024 | ​ |  | 125
2025 | ​ |  | 48
2026 | ​ |  | 27
2027 | ​ |  | 25
Thereafter | ​ | ​ | 29
​ | ​ | $ | 289
Schedule of accrued liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, | ​ | December 31,
​ |  | 2023 |  | 2022
Accrued liabilities | ​ | (in thousands)
Accrued compensation and benefits | ​ | $ | 172 | ​ | $ | 320
Accrued vacation | ​ |  | 205 | ​ |  | 223
Other accrued liabilities | ​ |  | 66 | ​ |  | 25
Total accrued liabilities | ​ | $ | 443 | ​ | $ | 568
​

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-1 + Details
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