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Property and equipment (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2018

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Schedule of property and equipment and related accumulated depreciation

Property and equipment and related accumulated depreciation and amortization are as follows (in thousands):

	As of June 30,				As of December 31,
	2018				2017
Laboratory equipment	$	1,732			$	3,480
Furniture	230				371
Computer equipment	13				208
Leasehold improvements	288				2,754
Total property and equipment, gross	2,263				6,813
Less: accumulated depreciation and amortization	(1,860		)		(3,700		)
Total property and equipment, net	$	403			$	3,113

Property and equipment are depreciated over the following periods:

Laboratory equipment		3 - 5 years
Furniture		5 years
Computer equipment		3 years
Leasehold improvements		Shorter of asset life or lease term

Property and equipment, net as of December 31, 2017 and 2016 follows (in thousands):

	As of December 31,
	2017				2016
Laboratory equipment	$	3,480			$	5,184
Furniture	371				793
Computer equipment	208				208
Leasehold improvements	2,754				2,815
Total property and equipment, gross	6,813				9,000
Less: accumulated depreciation and amortization	(3,700		)		(3,428		)
Total property and equipment, net	$	3,113			$	5,572

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- References

No definition available.

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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