SEGMENT INFORMATION (Capital expenditures and depreciation expense by segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 02, 2016	Mar. 28, 2015	Apr. 02, 2016	Mar. 28, 2015
Capital expenditures:
Property, Plant and Equipment, Additions			$ 2,916	$ 3,444
Depreciation expense:
Depreciation expense	$ 2,486	$ 2,261	4,871	4,488
Equipment [Member]
Capital expenditures:
Property, Plant and Equipment, Additions			2,149	2,512
Depreciation expense:
Depreciation expense	1,925	1,662	3,731	3,247
Expendable Tools [Member]
Capital expenditures:
Property, Plant and Equipment, Additions			767	932
Depreciation expense:
Depreciation expense	$ 561	$ 599	$ 1,140	$ 1,241