Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 30, 2017

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 30, 2017, December 31, 2016 and January 2, 2016 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 30, 2017		230		24		(28	)		226
December 31, 2016		140		128		(38	)		230
January 2, 2016		223		62		(145	)		140

Reconciliation of Changes in Deferred Revenue

A reconciliation of the changes in our deferred revenue balances for the years ended December 30, 2017 and December 31, 2016 are as follows (in thousands):

FY 2015: Balance as of January 2, 2016	$	1,311
Additions to deferral		1,430
Revenue recognized		(1,358	)
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

Reconciliation of Changes in Warranty Liability

A reconciliation of the changes in our warranty liability for the years ended December 30, 2017 and December 31, 2016 are as follows (in thousands):

FY 2015: Balance as of January 2, 2016	$	603
Accruals for product warranties		469
Cost of warranty claims		(469	)
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