Note 10 - Income Taxes (Tables)

12 Months Ended

Jan. 03, 2021

Notes Tables

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	Fiscal Years
	2020			2019			2018
Loss before income taxes:
U.S.	$	(11,170	)	$	(15,813	)	$	(13,982	)
Foreign		70			289			355
Loss before income taxes	$	(11,100	)	$	(15,524	)	$	(13,627	)
Provision for (benefit from) income taxes:
Current:
Federal	$	—		$	—		$	(19	)
State		3			3			2
Foreign		39			108			169
Subtotal		42			111			152
Deferred:
Federal		—			(141	)		—
State		—			(44	)		—
Foreign		9			(6	)		—
Subtotal		9			(191	)		—
Provision for (benefit from) income taxes	$	51		$	(80	)	$	152

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Fiscal Years
	2020			2019			2018
Income tax (benefit) at statutory rate	$	(2,331	)	$	(3,260	)	$	(2,862	)
State taxes		3			(42	)		2
Stock compensation and other permanent differences		99			187			252
Foreign taxes		34			42			95
Future benefit of deferred tax assets not recognized		2,246			3,133			2,684
Other		—			(140	)		(19	)
Provision for (benefit from) income taxes	$	51		$	(80	)	$	152

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	January 3,			December 29,
	2021			2019
Deferred tax assets:
Net operating losses	$	43,703		$	40,717
Accruals and reserves		1,239			1,345
Credits carryforward		5,860			5,765
Depreciation and amortization		9,240			9,760
Stock-based compensation		485			637
Operating lease liability		469			529
Gross deferred tax assets		60,996			58,753
Deferred tax liabilities:
Right-of-use asset		(458	)		(552	)
Gross deferred tax assets		(458	)		(552	)
Net deferred tax assets		60,538			58,201
Valuation allowance		(60,486	)		(58,140	)
Total deferred tax asset	$	52		$	61

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

	January 3,			December 29,			December 30,
	2021			2019			2018
Beginning balance of unrecognized tax benefits	$	2,117		$	2,161		$	2,107
Additions (subtractions) for tax positions related to the prior year		38			(46	)		(2	)
Additions for tax positions related to the current year		114			88			125
Lapse of statutes of limitations		(93	)		(86	)		(69	)
Ending balance of unrecognized tax benefits	$	2,176		$	2,117		$	2,161