Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Components of Inventory and Printed Circuit Board Assemblies ("PCBAs")

Inventory consisted of the following (in thousands):

	December 31,
	2019		2018
Raw materials	$	1,574	$	676
Finished goods	2,463		1,386
Total	$	4,037	$	2,062

Components of Property and Equipment, Net

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

	December 31,
	2019		2018
Laboratory and manufacturing equipment	$	4,238	$	2,750
Computer equipment and software	2,315		1,062
Furniture and fixtures	3,669		925
Leasehold improvements	7,597		726
Internal-use software	16,277		8,925
Total property and equipment, gross	34,096		14,388
Less: accumulated depreciation and amortization	(7,632)		(5,230)
Total property and equipment, net	$	26,464	$	9,158

Components of Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):

	December 31,
	2019		2018
Accrued vacation	$	3,809	$	2,825
Accrued payroll and related expenses	19,156		18,188
Accrued ESPP Contributions	417		373
Accrued professional services fees	2,846		1,249
Claims payable	2,802		2,374
Other	3,556		1,679
Total accrued liabilities	$	32,586	$	26,688