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OPERATING SEGMENT INFORMATION - Long-Lived Assets (Net of Accumulated Depreciation and Amortization) (Details) (USD $)
Dec. 31, 2012
Sep. 30, 2012
Sep. 30, 2012
Operating Segments
Sep. 30, 2011
Operating Segments
Sep. 30, 2012
Americas
Operating Segments
Sep. 30, 2011
Americas
Operating Segments
Sep. 30, 2012
Europe
Operating Segments
Sep. 30, 2011
Europe
Operating Segments
Segment Reporting Information [Line Items]                
Total long-lived assets (net) $ 129,843 $ 138,774 $ 170,000 $ 179,000 $ 169,000 $ 178,000 $ 1,000 $ 1,000