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Details of Certain Financial Statement Components | 12 Months Ended
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Dec. 31, 2020
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,
|  | 2020 |  | 2019
Inventories |  | (in thousands)
Raw materials |  | $ | 520 |  | $ | 540
Work-in-process |  |  | 246 |  |  | 253
Finished goods |  |  | 100 |  |  | 134
Total inventories |  | $ | 866 |  | $ | 927
|  | December 31, |  | December 31,
|  | 2020 |  | 2019
Property, plant and equipment, net |  | (in thousands)
Furniture, machinery and equipment |  | $ | 1,662 |  | $ | 1,626
Leasehold improvements |  |  | 538 |  |  | 527
|  |  | 2,200 |  |  | 2,153
Less: accumulated depreciation |  |  | (1,793) |  |  | (1,520)
Total property, plant and equipment, net |  | $ | 407 |  | $ | 633
Depreciation expense totaled $233 thousand and $225 thousand in 2020 and 2019, respectively.
|  | December 31, |  | December 31,
|  | 2020 |  | 2019
Intangible assets, net |  | (in thousands)
Patents and trademarks |  | $ | 658 |  | $ | 573
Less: accumulated amortization |  |  | (463) |  |  | (402)
Total intangibles, net |  | $ | 195 |  | $ | 171
Amortization expense totaled $60 thousand and $41 thousand in 2020 and 2019, respectively. Future amortization on existing intangibles over the next five years is as follows:
Years ending December 31, |  | (in thousands)
2021 |  | $ | 65
2022 |  |  | 54
2023 |  |  | 42
2024 |  |  | 27
2025 |  |  | 7
Thereafter |  |  | —
|  | $ | 195
|  | December 31, |  | December 31,
|  | 2020 |  | 2019
Accrued liabilities |  | (in thousands, except par value)
Accrued warranty |  | $ | 7 |  | $ | 9
Accrued wages and benefits |  |  | 180 |  |  | 168
Accrued taxes, other than income taxes |  |  | — |  |  | 3
Accrued vacation |  |  | 110 |  |  | 83
Accrued other |  |  | 46 |  |  | 39
Total accrued liabilities |  | $ | 343 |  | $ | 302

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