Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2018

Commitments and Contingencies

Product warranty accrued liability

The following table reflects the change in our warranty accrual which is included in “Accrued liabilities” on the condensed consolidated balance sheets, during the three and nine months ended September 30, 2018 and 2017 (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
Beginning accrued product warranty	$	178	$	130	$	133	$	251
Accruals for warranties issued		125		7		258		77
Adjustments related to pre-existing warranties including expirations and changes in estimates		(10)		18		(33)		(114)
Cost of warranty repair		(65)		(17)		(130)		(76)
Ending accrued product warranty	$	228	$	138	$	228	$	138

Outstanding contractual obligations

The following table summarizes our contractual obligations as of September 30, 2018 (in thousands):

	Payments due by period
					1-3		4-5		More than
Contractual Obligations	Total		Less than 1 year		years		years		5 years
Operating leases	$	452	$	193	$	233	$	26	$	—
Royalty agreement		144		144		—		—		—
Total	$	596	$	337	$	233	$	26	$	—