Accrued Warranty

12 Months Ended

Dec. 31, 2018

Product Warranties Disclosures [Abstract]

Accrued Warranty

Note 6—Accrued Warranty

Activity in the product warranty accrual is included in accrued expenses above and consists of the following (in thousands):

	Year ended December 31,
	2018			2017
Balanced at beginning of period	$	87		$	97
Increase in warranty accrual		287			198
Claims satisfied		(262	)		(208	)
Accrued warranty	$	112		$	87

Warranty expense was $0.3 million and $0.2 million for the years ended December 31, 2018 and 2017, respectively, and is included in cost of revenue in the accompanying statements of operations.