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PROPERTY AND EQUIPMENT, NET | 12 Months Ended
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Dec. 31, 2021
Property, Plant and Equipment [Abstract] |
PROPERTY AND EQUIPMENT, NET | 7. PROPERTY AND EQUIPMENT, NET Property and equipment, net, are recorded at historical cost and consist of the following at December 31:
|  | 2021 |  |  | 2020 |
Laboratory equipment |  | $ | 989 |  |  | $ | 572 |
Research devices |  |  | 1,422 |  |  |  | 486 |
Sales and marketing devices |  |  | 669 |  |  |  | — |
Computer equipment |  |  | 575 |  |  |  | 385 |
Construction in progress |  |  | 341 |  |  |  | 613 |
Tooling |  |  | 302 |  |  |  | 270 |
Trade show assets |  |  | 293 |  |  |  | — |
Leased devices |  |  | 396 |  |  |  | 127 |
Other |  |  | 176 |  |  |  | 167 |
|  |  | 5,163 |  |  |  | 2,620 |
Less: Accumulated depreciation and amortization |  |  | (1,410 | ) |  |  | (716 | )
Property and equipment, net |  | $ | 3,753 |  |  | $ | 1,904 |
Depreciation and amortization expense amounted to $726 and $289 for the years ended December 31, 2021 and 2020, 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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