13. Accrued liabilities (Tables)

12 Months Ended

Dec. 30, 2017

Payables and Accruals [Abstract]

Schedule of accrued liabilities

	December 30, 2017		December 31, 2016
Sales tax estimates, including interest	$	4,563	$	4,203
Compensation and benefits		1,061		2,431
Deferred revenue		300		227
Accrued incentive and rebate checks		285		358
Accrued rent		77		263
Accrued interest		115		–
Warranty		–		26
Accrued payables		129		570
Other		31		810
	$	6,561	$	8,888