|
Segment and Geographic Information Segment and Geographic Information (Details) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Sep. 30, 2012
|
Sep. 30, 2011
|
Sep. 30, 2010
|
|
| Segment Reporting Information [Line Items] | |||
| Disclosure on geographic areas, revenues from foreign external customers attributed to entity's country of domicile | $ 7,000,000 | $ 6,000,000 | $ 4,561,119 |
| U.S. | 38,438,064 | 33,421,745 | 33,220,925 |
| Foreign | 11,214,302 | 13,760,491 | 15,460,197 |
| Total | 49,652,366 | 47,182,236 | 48,681,122 |
| U.S. | 3,050,983 | 3,295,430 | 3,402,956 |
| Foreign | 991,192 | 1,044,707 | 1,220,821 |
| Total | $ 4,042,175 | $ 4,340,137 | $ 4,623,777 |