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SEGMENT INFORMATION (Capital expenditures, depreciation, and amortization expense by segment) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2017 | Oct. 01, 2016 | Oct. 03, 2015
Capital expenditures: |  |  |
Capital expenditures | $ 25,688 | $ 6,301 | $ 9,519
Depreciation expense: |  |  |
Depreciation expense | 9,703 | 9,569 | 9,089
Amortization expense: |  |  |
Amortization expense | 6,554 | 6,661 | 9,883
Capital Equipment |  |  |
Capital expenditures: |  |  |
Capital expenditures | 14,415 | 3,111 | 6,592
Depreciation expense: |  |  |
Depreciation expense | 6,306 | 6,012 | 6,075
Amortization expense: |  |  |
Amortization expense | 2,841 | 2,760 | 4,291
APS [Member] |  |  |
Capital expenditures: |  |  |
Capital expenditures | 11,273 | 3,190 | 2,927
Depreciation expense: |  |  |
Depreciation expense | 3,397 | 3,557 | 3,014
Amortization expense: |  |  |
Amortization expense | $ 3,713 | $ 3,901 | $ 5,592

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- Definition The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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