SEGMENT INFORMATION (Capital expenditures and depreciation expense by segment) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jan. 02, 2016	Dec. 27, 2014
Capital expenditures:
Property, Plant and Equipment, Additions	$ 1,394	$ 2,253
Depreciation expense:
Depreciation expense	2,385	2,227
Equipment [Member]
Capital expenditures:
Property, Plant and Equipment, Additions	1,071	1,736
Depreciation expense:
Depreciation expense	1,806	1,585
Expendable Tools [Member]
Capital expenditures:
Property, Plant and Equipment, Additions	323	517
Depreciation expense:
Depreciation expense	$ 579	$ 642