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v3.22.1

Property and Equipment | 3 Months Ended
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Mar. 31, 2022
Property Plant And Equipment [Abstract] |
Property and equipment | Note 4. Property and equipment Property and equipment, net consisted of the following (in thousands):
|  |  |  | December 31, |  |  | March 31, |
|  | Useful Life |  | 2021 |  |  | 2022 |
|  |  |  |  |  |  | (unaudited) |
Equipment and tooling |  | 3 to 5 years |  | $ | 29,621 |  |  | $ | 30,534 |
Computer equipment |  | 3 to 5 years |  |  | 3,835 |  |  |  | 3,967 |
Furniture and fixtures |  | 10 years |  |  | 844 |  |  |  | 839 |
Leasehold improvements |  | 2 to 3 years |  |  | 457 |  |  |  | 453 |
Total cost |  |  |  |  | 34,757 |  |  |  | 35,793 |
Less: Accumulated depreciation |  |  |  |  | (24,267 | ) |  |  | (25,061 | )
Property and equipment, net |  |  |  | $ | 10,490 |  |  | $ | 10,732 |
Total depreciation expense was $0.9 million and $0.9 million for the three-month periods ended March 31, 2021 and 2022, respectively.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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