Balance Sheets Details (Tables)

3 Months Ended

Mar. 31, 2020

Balance Sheets Details [Abstract]

Schedule of inventory components

Inventories consisted of the following (in thousands):

	March 31, 2020		December 31, 2019
Raw materials	$	104	$	7
Work-in-process	8		26
Finished goods	589		338
Inventories	$	701	$	371

Schedule of property and equipment, net

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

	March 31, 2020		December 31, 2019
Laboratory equipment	$	24,323	$	23,561
Leasehold improvements	10,804		10,804
Computer equipment and software	3,098		3,016
Office equipment and furniture	1,329		1,461
Construction in progress	467		691
Property and equipment	40,021		39,533
Less: accumulated depreciation and amortization	(33,374)		(33,251)
Property and equipment, net	$	6,647	$	6,282

Schedule of accrued liabilities

Other accrued liabilities consisted of the following (in thousands):

	March 31, 2020		December 31, 2019
Accrued purchases	$	5,654	$	4,386
Accrued professional and outside service fees	3,111		1,802
Other	158		352
Total	$	8,923	$	6,540