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Note 7 - Income Taxes - Components of the Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Current:
Federal	$ 1,605
State	237	24	304
Foreign	(231)	1,189	3,293
Deferred:
Federal	1,902	(9,697)
State	1,230	(1,308)	26
Foreign	(811)	345	(1,961)
Income tax expense (benefit)	$ 3,932	$ (9,447)	$ 1,662

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