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v3.22.4

Property and Equipment, Net | 12 Months Ended
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Dec. 31, 2022
Property and Equipment, Net |
Property and Equipment, Net | (6) Property and Equipment, Net Property and Equipment, net includes the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, |  | December 31,
​ | ​ | 2022 | ​ | 2021
​ | ​ | (In thousands)
Laboratory equipment | ​ | $ | 9,250 | ​ | $ | 8,581
Manufacturing equipment |  | ​ | 2,558 |  | ​ | 2,571
Office furniture and equipment |  | ​ | 3,454 |  | ​ | 3,362
Leasehold improvements |  | ​ | 9,613 |  | ​ | 9,531
Construction in progress |  | ​ | 498 |  | ​ | 632
Total property and equipment |  | ​ | 25,373 |  | ​ | 24,677
Less: accumulated depreciation and amortization |  | ​ | (21,626) |  | ​ | (21,126)
Property and equipment, net | ​ | $ | 3,747 | ​ | $ | 3,551
​ Depreciation and amortization expense related to property and equipment was $1.4 million, $1.6 million and $2.0 million for the years ended December 31, 2022, 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 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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