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Major Customers and Foreign Sales | 12 Months Ended
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Sep. 30, 2011
Risks and Uncertainties [Abstract] |
Major Customers And Foreign Sales | Major Customers and Foreign Sales In fiscal 2011, two customers individually accounted for 15% and 14% of net revenue. In fiscal 2010, one customer accounted for 28% of net revenue . In fiscal 2009, one customer accounted for 16% of net revenue. Yingli accounted for 15%, 28% and 4% of our net revenue in fiscal 2011, 2010 and 2009, respectively. Our net revenues for fiscal 2011, 2010 and 2009 were to customers in the following geographic regions:
| Years Ended September 30,
| 2011 |  | 2010 |  | 2009
United States | 6 | % |  | 7 | % |  | 18 | %
Taiwan | 16 | % |  | 17 | % |  | 22 | %
China | 69 | % |  | 64 | % |  | 39 | %
Other | 3 | % |  | 3 | % |  | 7 | %
Total Asia | 88 | % |  | 84 | % |  | 68 | %
Germany | 3 | % |  | 3 | % |  | 5 | %
Other | 3 | % |  | 6 | % |  | 9 | %
Total Europe | 6 | % |  | 9 | % |  | 14 | %
| 100 | % |  | 100 | % |  | 100 | %

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- Definition The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date. + References Reference 1: 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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 94-6 -Paragraph 21, 22, 24 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13537-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -Paragraph 15A -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6442-108592 Reference 6: 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=6947722&loc=d3e13531-108611 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6327-108592 Reference 8: 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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