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Segment and Geographic Information Segment and Geographic Information (Tables)
12 Months Ended
Sep. 30, 2012
Segment Information [Abstract]  
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]
Net sales and long-lived assets related to operations in the United States and other foreign countries for the fiscal years ended September 30, 2012, 2011 and 2010 are as follows:

 
 
2012

 
2011

 
2010

Net sales
 
 
 
 
 
 
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

Long-lived assets
 

 

 

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