Note 10 - Income Taxes - Effective Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
Jan. 03, 2021	Dec. 29, 2019	Dec. 30, 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	0	(140)	(19)
Provision for (benefit from) income taxes	$ 51	$ (80)	$ 152

Amount of income tax future expense (benefit) of deferred tax assets that has not yet been recognized.

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- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit).

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for award under share-based payment arrangement. Includes, but is not limited to, expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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