Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 29, 2018

Accounting Policies [Abstract]

Reconciliation of Changes in Allowance for Doubtful Accounts

A reconciliation of the changes in our allowance for doubtful accounts balances for the years ended December 29, 2018 and December 30, 2017 are as follows (in thousands):

	Balance at							Balance
	Beginning of							at End of
Description	The period		Additions		(Deductions)			The period
Allowance for doubtful accounts Years ended
December 29, 2018		226		31		(44	)		213
December 30, 2017		230		24		(28	)		226

Reconciliation of Changes in Deferred Revenue

A reconciliation of the changes in our deferred revenue balances for the years ended December 29, 2018 and December 30, 2017 are as follows (in thousands):

FY 2016: Balance as of December 31, 2016	$	1,383
Additions to deferral		2,451
Revenue recognized		(1,314	)
FY 2017: Balance as of December 30, 2017		2,520
Additions to deferral		1,984
Revenue recognized		(2,279	)
FY 2018: Balance as of December 29, 2018	$	2,225

Reconciliation of Changes in Warranty Liability

A reconciliation of the changes in our warranty liability for the years ended December 29, 2018 and December 30, 2017 are as follows (in thousands):

FY 2016: Balance as of December 31, 2016	$	603
Accruals for product warranties		1,476
Cost of warranty claims		(344	)
FY 2017: Balance as of December 30, 2017		1,735
Accruals for product warranties		454
Cost of warranty claims		(1,329	)
FY 2018: Balance as of December 29, 2018	$	860