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Product and Geographic Information (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Aug. 31, 2012 | May 31, 2012 | Feb. 29, 2012 | Nov. 30, 2011 | Aug. 31, 2011 | May 31, 2011 | Feb. 28, 2011 | Nov. 30, 2010 | Aug. 31, 2012 | Aug. 31, 2011 | Aug. 31, 2010
Revenues by products |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 5,469 | $ 9,178 | $ 7,905 | $ 6,747 | $ 5,329 | $ 5,600 | $ 9,957 | $ 13,016 | $ 29,299 | $ 33,902 | $ 35,763
LED chips |  |  |  |  |  |  |  |  |  |  |
Revenues by products |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 7,805 | 19,712 | 27,579
LED components |  |  |  |  |  |  |  |  |  |  |
Revenues by products |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 14,820 | 10,733 | 7,621
Lighting products |  |  |  |  |  |  |  |  |  |  |
Revenues by products |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 4,386 | 715 | 14
Other |  |  |  |  |  |  |  |  |  |  |
Revenues by products |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | $ 2,288 | $ 2,742 | $ 549

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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