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Details of Certain Financial Statement Components | 12 Months Ended
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Dec. 31, 2023
Details of Certain Financial Statement Components |
Details of Certain Financial Statement Components | Note 2 – Details of Certain Financial Statement Components The following tables provide details of selected balance sheet items: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, | ​ | December 31,
​ |  | 2023 |  | 2022
Inventories |  | (in thousands)
Raw materials |  | $ | 1,986 |  | $ | 1,635
Work-in-process | ​ | ​ | 232 | ​ | ​ | 192
Finished goods | ​ | ​ | 258 | ​ | ​ | 285
Total inventories |  | $ | 2,476 |  | $ | 2,112
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, | ​ | December 31,
​ |  | 2023 |  | 2022
Property, plant and equipment, net | ​ | (in thousands)
Furniture, machinery and equipment | ​ | $ | 2,009 | ​ | $ | 1,688
Leasehold improvements | ​ |  | 412 | ​ |  | 417
​ | ​ |  | 2,421 | ​ |  | 2,105
Less: accumulated depreciation | ​ |  | (2,108) | ​ |  | (1,921)
Total property, plant and equipment, net | ​ | $ | 313 | ​ | $ | 184
​ Depreciation expense totaled $200,000 and $193,000 in 2023 and 2022, respectively. The changes in the carrying amount of goodwill for the years ended December 31, 2023 and 2022 are as follows: ​
​ | ​ | ​ | ​
​ |  | (in thousands)
Balance as of January 1, 2022 | ​ | $ | —
Goodwill acquired in acquisition of SPEC/KWJ | ​ |  | 650
Balance as of December 31, 2022 | ​ |  | 650
Adjustment to goodwill, acquisition price allocation of SPEC/KWJ | ​ |  | (404)
Goodwill acquired in acquisition of Calman | ​ |  | 2,064
Adjustment to goodwill, foreign currency exchange rate changes | ​ |  | 151
Balance as of December 31, 2023 | ​ | $ | 2,461
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Weighted | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Averge | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Amortization | ​ | December 31, | ​ | December 31,
​ |  | period |  | 2023 |  | 2022
Intangible assets, net | ​ | ​ | ​ | (in thousands)
Patents, tradenames, and trademarks | ​ | 5 Years | ​ | $ | 935 | ​ | $ | 658
Developed technology | ​ | 3.5 Years | ​ | ​ | 543 | ​ | ​ | —
Customer relationships | ​ | 6 Years | ​ | ​ | 1,449 | ​ | ​ | —
Non-compete agreements | ​ | 4 Years | ​ | ​ | 930 | ​ | ​ | —
Order backlog | ​ | 0.5 Years | ​ | ​ | 22 | ​ | ​ | —
In-process research and development | ​ | Indefinite | ​ | ​ | 29 | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | 3,908 | ​ | ​ | 658
Less: accumulated amortization | ​ | ​ | ​ |  | (1,254) | ​ |  | (582)
Total intangible assets, net | ​ | ​ | ​ | $ | 2,654 | ​ | $ | 76
​ Amortization expense totaled $662,000 and $54,000 in 2023 and 2022, respectively. Future amortization on existing intangible assets over the next five years and thereafter is as follows: ​
​ | ​ | ​ | ​
Years ending December 31, |  | (in thousands)
2024 | ​ | $ | 751
2025 | ​ |  | 674
2026 | ​ | ​ | 545
2027 | ​ | ​ | 336
2028 | ​ | ​ | 264
Thereafter | ​ |  | 84
​ | ​ | $ | 2,654
​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, | ​ | December 31,
​ |  | 2023 |  | 2022
Accrued liabilities | ​ | (in thousands)
Accrued wages and benefits | ​ | $ | 204 | ​ | $ | 320
Accrued vacation | ​ |  | 185 | ​ |  | 223
Accrued other liabilities | ​ |  | 103 | ​ |  | 25
Total accrued liabilities | ​ | $ | 492 | ​ | $ | 568
​

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