Balance Sheets Details (Tables)

6 Months Ended

Jun. 30, 2017

Balance Sheets Details [Abstract]

Schedule of inventory components

Inventories consisted of the following (in thousands):

	June 30, 2017		December 31, 2016
Raw materials	$	84	$	118
Work-in-process	227		59
Finished goods	495		648
Inventories	$	806	$	825

Schedule of property and equipment, net

Property and equipment, net consisted of the following (in thousands):

	June 30, 2017			December 31, 2016
Laboratory equipment	$	19,620		$	18,849
Leasehold improvements	10,462			10,395
Computer equipment and software	3,678			3,267
Office equipment and furniture	1,185			1,171
Construction in progress (1)	94			124
Property and equipment	35,039			33,806
Less: accumulated depreciation and amortization	(32,070		)	(31,651		)
Property and equipment, net	$	2,969		$	2,155

(1) Construction in progress includes equipment received but not yet placed into service pending installation.

Schedule of finite-lived intangible assets

Intangible assets, net consisted of the following (in thousands, except weighted average amortization period): 

	June 30, 2017 and December 31, 2016
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Amortization Period (years)
Developed and core technology	$	1,534	$	(1,534	)	$	—	5
Maxygen intellectual property	20,244		(20,244		)	—		6
Intangible assets, net	$	21,778	$	(21,778	)	$	—