Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2017

Balance Sheet Components

Schedule of Inventory

Inventory consisted of the following (in thousands):

	December 31,
	2017		2016
Raw materials	$	682	$	853
Work-in-process		4,517		3,152
Finished goods		4,638		1,064
Total inventory	$	9,837	$	5,069

Schedule of Property and equipment, net

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

	December 31,
	2017		2016
Manufacturing equipment	$	10,465	$	8,983
Computer and network equipment		710		588
Furniture and fixtures		218		188
Software		455		333
Leasehold improvements		1,474		13
Total property and equipment, gross		13,322		10,105
Less: accumulated depreciation		(9,376)		(8,185)
Total property and equipment, net	$	3,946	$	1,920

Schedule of Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):

	December 31,
	2017		2016
Accrued payroll-related expenses	$	1,331	$	1,045
Deferred licensing revenue		—		229
Deferred rent		230		248
Accrued sales commissions payable to sales representatives		75		193
Other		618		96
Total accrued liabilities	$	2,254	$	1,811