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Product and Geographic Information (Details 2) (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 geographic area |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 5,469 | $ 9,178 | $ 7,905 | $ 6,747 | $ 5,329 | $ 5,600 | $ 9,957 | $ 13,016 | $ 29,299 | $ 33,902 | $ 35,763
Percentage of total net revenues | 5.00% |  |  |  |  |  |  |  | 5.00% |  |
Taiwan |  |  |  |  |  |  |  |  |  |  |
Revenues by geographic area |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 5,844 | 15,563 | 14,750
China |  |  |  |  |  |  |  |  |  |  |
Revenues by geographic area |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 2,127 | 3,788 | 10,503
Hong Kong |  |  |  |  |  |  |  |  |  |  |
Revenues by geographic area |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 1,619 | 3,650 | 1,893
Russia |  |  |  |  |  |  |  |  |  |  |
Revenues by geographic area |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 9,300 | 4,549 | 3,486
United States |  |  |  |  |  |  |  |  |  |  |
Revenues by geographic area |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 4,068 | 2,569 | 1,392
Other (individually less than 5% of total net revenues) |  |  |  |  |  |  |  |  |  |  |
Revenues by geographic area |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | $ 6,341 | $ 3,783 | $ 3,739

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