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SEGMENT INFORMATION (Capital expenditures and depreciation expense by segment) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Oct. 01, 2011
Capital expenditures:      
Capital expenditures $ 17,172 $ 6,902 $ 7,688
Depreciation expense:      
Depreciation expense 9,311 8,087 8,212
Equipment [Member]
      
Capital expenditures:      
Capital expenditures 11,704 5,318 4,229
Depreciation expense:      
Depreciation expense 6,936 5,745 5,955
Expendable Tools [Member]
      
Capital expenditures:      
Capital expenditures 5,468 1,584 3,459
Depreciation expense:      
Depreciation expense $ 2,375 $ 2,342 $ 2,257