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Basic and Diluted Income Per Share (Details 1)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 28, 2013
Jun. 29, 2012
Jun. 28, 2013
Jun. 29, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Anti - dilutive securities which were not included in the calculation of diluted per share amounts (in shares) 1,287 3,068 1,538 2,845
Options and Restricted Stock [Member]
       
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Anti - dilutive securities which were not included in the calculation of diluted per share amounts (in shares) 1,287 2,226 1,538 1,969
Warrant [Member]
       
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Anti - dilutive securities which were not included in the calculation of diluted per share amounts (in shares) 0 842 0 876