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Restructuring (table) (detail) (USD $)
3 Months Ended
Jun. 29, 2013
Dec. 29, 2012
Jun. 30, 2012
Jun. 29, 2013
Employee Severance [Member]
Jun. 29, 2013
Other Restructuring [Member]
Jun. 29, 2013
Long Lived Asset Charges [Member]
Mar. 31, 2013
Long Lived Asset Charges [Member]
Restructuring Cost and Reserve [Line Items]              
Balance $ 1,501,000     $ 20,000 $ 307,000 $ 1,174,000 $ 1,174,000
Plant Restructuring 154,000 2,510,000 0   154,000    
Cash payments/write offs (261,000)     (3,000) (258,000)    
Balance $ 1,394,000     $ 17,000 $ 203,000 $ 1,174,000 $ 1,174,000