Balance Sheets Details (Tables)

6 Months Ended

Jun. 30, 2021

Balance Sheets Details [Abstract]

Schedule of Cash and Cash Equivalents

Cash equivalents as of June 30, 2021 and December 31, 2020, consisted of the following (in thousands):

	June 30, 2021				December 31, 2020
	Adjusted Cost		Estimated Fair Value		Adjusted Cost		Estimated Fair Value
Money market funds (1)	$	111,083	$	111,083	$	127,567	$	127,567

(1) Money market funds are classified in cash and cash equivalents on our consolidated balance sheets. Average Contractual Maturities (in days) is not applicable.

Schedule of Inventory Components

Inventories consisted of the following (in thousands):

	June 30, 2021		December 31, 2020
Raw materials	$	49	$	77
Work-in-process	98		82
Finished goods	931		805
Inventories	$	1,078	$	964

Schedule of Property and Equipment, Net

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

	June 30, 2021		December 31, 2020
Laboratory equipment	$	28,623	$	25,468
Leasehold improvements	10,785		10,785
Computer equipment and software	3,283		3,192
Office equipment and furniture	1,246		1,246
Construction in progress	1,736		2,357
Property and equipment	45,673		43,048
Less: accumulated depreciation and amortization	(34,441)		(33,373)
Property and equipment, net	$	11,232	$	9,675

Depreciation expense included in the Unaudited Condensed Consolidated Statements of Operations was follows (in thousands):

	Three months ended June 30,				Six months ended June 30,
	2021		2020		2021		2020
Depreciation Expense	$	716	$	462	$	1,375	$	900

Schedule of Other Accrued Liabilities

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

	June 30, 2021		December 31, 2020
Accrued purchases	$	5,107	$	7,170
Accrued professional and outside service fees	3,899		2,589
Other	76		513
Total	$	9,082	$	10,272