Quarterly report pursuant to Section 13 or 15(d)

BASIS OF PRESENTATION (Details)

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BASIS OF PRESENTATION (Details)
3 Months Ended 6 Months Ended
Jul. 01, 2012
Jun. 26, 2011
Jul. 01, 2012
Jun. 26, 2011
BASIS OF PRESENTATION        
Number of days in each interim period 91 days 91 days 182 days 175 days
Options excluded (in shares) 439,328 140,277 332,802 80,858