Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2019

Balance Sheet Components

Schedule of Inventory

Inventory consisted of the following (in thousands):

	December 31,
	2019		2018
Raw materials	$	119	$	288
Work-in-process		6,329		6,759
Finished goods		1,415		2,050
Total inventory	$	7,863	$	9,097

Schedule of property and equipment, net

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

	December 31,
	2019		2018
Manufacturing equipment	$	12,228	$	11,723
Computer and network equipment		877		820
Furniture and fixtures		112		110
Software		925		680
Leasehold improvements		1,444		1,432
Total property and equipment, gross		15,586		14,765
Less: accumulated depreciation		(12,107)		(10,479)
Total property and equipment, net	$	3,479	$	4,286

Schedule of accrued liabilities

Accrued liabilities consisted of the following (in thousands):

	December 31,
	2019		2018
Accrued payroll-related expenses	$	1,236	$	1,558
Accrued joint development agreement expenses		170		661
Accrued inventory		87		1,678
Restructuring expenses		782		—
Deferred rent		—		390
Other		452		714
Total accrued liabilities	$	2,727	$	5,001