Balance Sheet Components (Tables)

3 Months Ended

Mar. 31, 2019

Balance Sheet Related Disclosures [Abstract]

Components of Inventory

Inventory consists of the following (in thousands):

	March 31,		December 31,
	2019		2018
Work in process	$	1,369	$	961
Finished goods		1,390		1,246
Total inventory	$	2,759	$	2,207

Components of Property and Equipment - Net

Property and equipment – net consists of the following (in thousands):

	March 31,			December 31,
	2019			2018
Computer equipment and software	$	1,220		$	1,173
Leasehold improvements		84			84
Furniture		30			30
Total property and equipment		1,334			1,287
Less: accumulated depreciation		(764	)		(676	)
Total property and equipment - net	$	570		$	611

Components of Accrued Liabilities

Accrued liabilities consist of the following (in thousands):

	March 31,		December 31,
	2019		2018
Payroll-related expenses	$	437	$	398
Engineering services		221		134
Professional fees		95		48
Accrued warranty		77		73
Taxes payable		35		28
Other		25		37
Total accrued liabilities	$	890	$	718