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Property and Equipment

12 Months Ended

Dec. 31, 2021

Property, Plant and Equipment [Abstract]

Property and Equipment

7.    Property and Equipment

Property and equipment consisted of the following at December 31, 2020 and 2021 (in thousands):

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​	​	​	​	​	​	​	​	​
​	​	​		December 31,
​		Lives in years		2020			2021
Leasehold improvements	​	2 to 15	​	$	409	​	$	6
Research and laboratory equipment		3 to 5	​		—	​		65
Office equipment and furniture		3 to 5	​		582	​		353
​	​	​	​		991	​		425
Less: accumulated depreciation and amortization			​		(886)	​		(361)
​	​	​	​	$	106	​	$	64

​

During each of the years ended December 31, 2020 and 2021, the Company wrote-off fully depreciated assets which were no longer in use and had no associated re-sale value other than scrap value. The significant reduction in leasehold improvements was a result of the lease assignment of the Company’s facility in Dundee, Scotland in May 2021 and involved the derecognition of $0.4 million of fully depreciated assets associated with the lease.

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- References

No definition available.

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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

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