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Balance Sheet Details (Tables)

9 Months Ended

Sep. 30, 2020

Balance Sheet Related Disclosures [Abstract]

Summary of cash and cash equivalents

Cash, cash equivalents and restricted cash consisted of the following as of September 30, 2020 and December 31, 2019 (in thousands):

						September 30, 2020						December 31, 2019
Cash and cash equivalents						$	72,345					$	21,661
Restricted cash						1,015						2,075
Total cash, cash equivalents and restricted cash						$	73,360					$	23,736

Schedule of restricted cash

Cash, cash equivalents and restricted cash consisted of the following as of September 30, 2020 and December 31, 2019 (in thousands):

						September 30, 2020						December 31, 2019
Cash and cash equivalents						$	72,345					$	21,661
Restricted cash						1,015						2,075
Total cash, cash equivalents and restricted cash						$	73,360					$	23,736

Schedule of inventories

Inventories consisted of the following as of September 30, 2020 and December 31, 2019 (in thousands):

						September 30, 2020						December 31, 2019
Raw materials						$	8,768					$	6,133
Work-in-process						920						659
Finished goods						9,872						7,092
Total inventories						$	19,560					$	13,884

Schedule of property and equipment

Property and equipment consisted of the following as of September 30, 2020 and December 31, 2019 (in thousands):

						September 30, 2020						December 31, 2019
Computer equipment and software						$	4,363					$	3,997
Laboratory and manufacturing equipment						18,988						19,325
Leasehold improvements						8,118						7,788
Office furniture and fixtures						2,211						1,824
Property and equipment, gross						33,680						32,934
Less accumulated depreciation and amortization						(26,262)						(24,954)
Construction-in-progress						113						76
Property and equipment, net						$	7,531					$	8,056

Schedule of activity of warranty accrual

Activity for our warranty accrual for the nine months ended September 30, 2020 and 2019, which is included in other accrued liabilities, is summarized below (in thousands):

						Nine Months Ended September 30,
						2020						2019
Beginning balance						$	1,390					$	863
Accrual for current period warranties						677						912
Warranty costs incurred						(387)						(668)
Ending balance						$	1,680					$	1,107

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