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Note 7 - Income Taxes - Reconciliation Between the Statutory Federal Income Tax Rate and Effective Income Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Income before income taxes	$ 5,309	$ 17,898	$ 16,024
Statutory federal income tax rate	34.00%	34.00%	34.00%
Income tax expense at statutory federal rate	$ 1,805	$ 6,085	$ 5,448
State income taxes, net of federal tax benefit	968	371	310
Valuation allowance	576	(15,572)	(5,415)
Effect of lower foreign taxes	864	(622)	(372)
Adjustment for unrecognized tax positions	(77)	67	397
Other items, net	(204)	224	1,294
Income tax expense (benefit)	$ 3,932	$ (9,447)	$ 1,662
Effective tax rate	74.10%	(52.80%)	10.40%

X

- Definition

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

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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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 increase (decrease) in the valuation allowance for deferred tax assets.

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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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