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Net Income Per Share (Computation Basic And Diluted Net Income Per Share) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jul. 01, 2012
Jun. 30, 2013
Jul. 01, 2012
Earnings Per Share [Abstract]        
Net income $ 2,206 $ 1,578 $ 3,038 $ 1,732
Weighted average common shares outstanding 12,411 13,787 12,447 13,820
Basic net income per share $ 0.18 $ 0.11 $ 0.24 $ 0.13
Dilutive effect of stock options and RSUs 217 109 213 212
Common stock and common stock equivalents 12,628 13,896 12,660 14,032
Diluted net income per share $ 0.17 $ 0.11 $ 0.24 $ 0.12