Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 29, 2019

Accounting Policies [Abstract]

Reconciliation of Changes in Deferred Revenue

A reconciliation of the changes in the Company’s deferred revenue balance for the six months ended June 29, 2019 and June 30, 2018 is as follows:

	Six Months Ended
	June 29, 2019			June 30, 2018
Balance, beginning of period	$	2,225		$	2,520
Additions to deferral		985			789
Revenue recognized		(1,227	)		(993	)
Balance, end of period		1,983			2,316
Non-current portion of deferred revenue		469			633
Current portion of deferred revenue	$	1,514		$	1,683

Reconciliation of Changes in Warranty Liability

A reconciliation of the changes in the Company’s warranty liability for the six months ended June 29, 2019 and June 30, 2018 is as follows:

	Six Months Ended
	June 29, 2019			June 30, 2018
Balance, beginning of period	$	860		$	1,735
Accruals for product warranties		170			167
Cost of warranty claims		(120	)		(531	)
Adjustment to pre-existing warranties		(334	)		(445	)
Balance, end of period	$	576		$	926