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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. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Income before income taxes	$ 13,813	$ 5,309	$ 17,898
Federal tax rate	34.00%	34.00%	34.00%
Income tax expense at statutory federal rate	$ 4,696	$ 1,805	$ 6,085
State and local income taxes, net of federal tax benefit	327	968	371
Valuation allowance	323	576	(15,572)
Effect of lower foreign taxes	(131)	864	(622)
Adjustment for unrecognized tax positions	(309)	(77)	67
U.S. federal rate change to 21%	1,448
Other items, net	(457)	(204)	224
Income tax expense (benefit)	$ 5,897	$ 3,932	$ (9,447)
Effective tax rate	42.70%	74.10%	(52.80%)

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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