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Property and Equipment Property and Equipment (Tables) | 12 Months Ended
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Dec. 31, 2020
Property, Plant and Equipment [Abstract] |
Schedule of Property and Equipment | Property and equipment are stated at cost and depreciated using the straight-line method over the estimated useful lives of the related assets and consist of the following (in thousands):
| At December 31,
| 2020 |  | 2019
Equipment (useful life 3 - 15 years) | $ | 1,281 |  |  | $ | 1,297 |
Tooling (useful life 2 - 5 years) | 240 |  |  | 203 |
Vehicles (useful life 5 years) | 47 |  |  | 47 |
Furniture and fixtures (useful life 5 years) | 137 |  |  | 137 |
Computer software (useful life 3 years) | 1,057 |  |  | 1,028 |
Leasehold improvements (the shorter of useful life or lease life) | 169 |  |  | 211 |
Finance lease right-of-use asset | 13 |  |  | 13 |
Construction in progress | 140 |  |  | 48 |
Property and equipment at cost | 3,084 |  |  | 2,984 |
Less: accumulated depreciation | (2,664) |  |  | (2,595) |
Property and equipment, net | $ | 420 |  |  | $ | 389 |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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