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COMMITMENTS, CONTINGENCIES AND CONCENTRATIONS (Significant customer concentrations as a percentage of total accounts receivable) (Details) (Accounts Receivable [Member], Customer Concentration Risk [Member]) | 12 Months Ended
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Sep. 28, 2013 | Sep. 29, 2012
Siliconware Precision Industries Ltd [Member] |  |
Concentration Risk [Line Items] |  |
Customer concentrations risk percentage | 19.50% |
STATS ChipPAC Ltd [Member] |  |
Concentration Risk [Line Items] |  |
Customer concentrations risk percentage | 14.50% |
Haoseng Industrial Co., Ltd [Member] |  |
Concentration Risk [Line Items] |  |
Customer concentrations risk percentage | 11.90% | 15.00%
Siliconware Precision Industries Co. Limited [Member] |  |
Concentration Risk [Line Items] |  |
Customer concentrations risk percentage |  | 31.00%

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13531-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 + Details
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