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v3.22.2.2

Property and Equipment, Net | 9 Months Ended
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Sep. 30, 2022
Property, Plant and Equipment [Abstract] |
Property and Equipment, Net | Property and Equipment, Net Property and equipment, net, consisted of the following (in thousands):
| September 30, 2022 |  | December 31, 2021
Leasehold improvements | $ | 9,190 |  |  | $ | 9,052 |
Laboratory and clean room equipment | 16,302 |  |  | 16,567 |
Furniture and equipment | 14,997 |  |  | 14,975 |
Construction in progress | 1,383 |  |  | 397 |
Asset retirement cost | 982 |  |  | 863 |
Finance lease right-of-use asset | 189 |  |  | 189 |
Property and equipment, gross | 43,043 |  |  | 42,043 |
Less: accumulated depreciation and amortization | (35,131) |  |  | (32,878) |
Property and equipment, net | $ | 7,912 |  |  | $ | 9,165 |
Depreciation expense for the three and nine months ended September 30, 2022 and 2021 is summarized in the table below (in thousands):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2022 |  | 2021 |  | 2022 |  | 2021
Depreciation expense | $ | 831 |  |  | $ | 923 |  |  | $ | 2,549 |  |  | $ | 3,390 |
Depreciation expense is allocated amongst cost of sales, research and development expense, and selling, general, and administrative expense on the unaudited condensed consolidated statements of operations.

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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 https://asc.fasb.org/extlink&oid=126982197&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI https://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 https://asc.fasb.org/extlink&oid=126982197&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 https://asc.fasb.org/extlink&oid=126982197&loc=d3e99779-112916 + Details
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