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Segment and Geographic Information Segment and Geographic Information (Details) (USD $)
12 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Segment Reporting Information [Line Items]    
Disclosure on geographic areas, revenues from foreign external customers attributed to entity's country of domicile $ 4,202,069 $ 6,755,466
U.S. 29,687,567 38,438,064
Foreign 10,158,516 11,214,302
Total 39,846,083 49,652,366
U.S. 3,999,676 3,050,983
Foreign 989,997 991,192
Total $ 4,989,673 $ 4,042,175