Guarantees (Tables)

12 Months Ended

Dec. 31, 2018

Guarantees

Product warranty accrued liability

The following table reflects the change in our warranty accrual which is included in “Accrued liabilities” on the consolidated balance sheets, during 2018 and 2017 (in thousands):

	Year Ended
	December 31,
	2018		2017
Beginning accrued product warranty	$	133	$	251
Accruals for warranties issued		289		125
Adjustments related to pre-existing warranties including expirations and changes in estimates		87		(150)
Cost of warranty repair		(273)		(93)
Ending accrued product warranty	$	236	$	133