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Note 3 - Earnings Per Share - Calculation of Income (Loss) Per Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2017	Jul. 03, 2016	Jul. 02, 2017	Jul. 03, 2016
Net Income	$ 20,938	$ 20,657	$ 29,485	$ 33,551
Weighted Average Shares Outstanding (in shares)	62,305	64,779	62,948	64,938
Participating Securities (in shares)	484	588	484	588
Shares for Basic Earnings Per Share (in shares)	62,789	65,367	63,432	65,526
Dilutive Effect of Stock Options (in shares)	43	38	42	38
Shares for Diluted Earnings Per Share (in shares)	62,832	65,405	63,474	65,564
Participating Securities [Member]
Net Income	$ 200	$ 200	$ 300	$ 300

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

+ References

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