SEGMENT INFORMATION (Capital expenditures and depreciation expense by segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Jun. 27, 2015	Jun. 28, 2014
Capital expenditures:
Property, Plant and Equipment, Additions			$ 5,709	$ 9,596
Depreciation expense:
Depreciation expense	$ 2,458	$ 2,180	6,946	6,007
Equipment [Member]
Capital expenditures:
Property, Plant and Equipment, Additions			4,274	7,231
Depreciation expense:
Depreciation expense	1,859	1,518	5,106	4,130
Expendable Tools [Member]
Capital expenditures:
Property, Plant and Equipment, Additions			1,435	2,365
Depreciation expense:
Depreciation expense	$ 599	$ 662	$ 1,840	$ 1,877