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Note 3 - Calculation of Income (Loss) Per Share (Details) - USD ($)
shares in Thousands
 3 Months Ended 6 Months Ended
Jul. 05, 2015
Jun. 29, 2014
Jul. 05, 2015
Jun. 29, 2014
Participating Securities [Member]        
Net Income $ 500 $ 300 $ 800 $ 400
Weighted Average Shares Outstanding (in shares) 64,497 65,012 64,710 65,011
Participating Securities (in shares) 1,498 1,461 1,498 1,461
Shares for Basic Earnings Per Share (in shares) 65,995 66,473 66,208 66,472
Dilutive Effect of Stock Options (in shares) 49 77 45 86
Shares for Diluted Earnings Per Share (in shares) 66,044 66,550 66,253 66,558