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SEGMENT INFORMATION (Operating information by segment) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 29, 2014 | Mar. 30, 2013 | Mar. 29, 2014 | Mar. 30, 2013
Net revenue: |  |  |  |
Net revenue | $ 114,206 | $ 106,110 | $ 193,319 | $ 220,149
Cost of sales : |  |  |  |
Cost of sales | 56,534 | 57,290 | 97,282 | 119,804
Gross profit : |  |  |  |
Gross profit | 57,672 | 48,820 | 96,037 | 100,345
Operating expenses: |  |  |  |
Operating expenses | 47,561 | 40,630 | 88,134 | 87,950
Income from operations: |  |  |  |
Income from operations | 10,111 | 8,190 | 7,903 | 12,395
Equipment [Member] |  |  |  |
Net revenue: |  |  |  |
Net revenue | 97,612 | 91,083 | 160,757 | 190,985
Cost of sales : |  |  |  |
Cost of sales | 50,711 | 51,140 | 85,184 | 107,572
Gross profit : |  |  |  |
Gross profit | 46,901 | 39,943 | 75,573 | 83,413
Operating expenses: |  |  |  |
Operating expenses | 41,608 | 35,515 | 77,160 | 77,240
Income from operations: |  |  |  |
Income from operations | 5,293 | 4,428 | (1,587) | 6,173
Expendable Tools [Member] |  |  |  |
Net revenue: |  |  |  |
Net revenue | 16,594 | 15,027 | 32,562 | 29,164
Cost of sales : |  |  |  |
Cost of sales | 5,823 | 6,150 | 12,098 | 12,232
Gross profit : |  |  |  |
Gross profit | 10,771 | 8,877 | 20,464 | 16,932
Operating expenses: |  |  |  |
Operating expenses | 5,953 | 5,115 | 10,974 | 10,710
Income from operations: |  |  |  |
Income from operations | $ 4,818 | $ 3,762 | $ 9,490 | $ 6,222

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- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a),(d)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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