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Inventories (Schedule Of Inventories Net Of Reserve For Obsolescence) (Details) (USD $)
Jun. 30, 2013
Sep. 30, 2012
Inventories [Abstract]    
Raw materials and stock parts $ 502,276 $ 455,000
Work-in-process 16,011 13,554
Finished goods 74,719 60,521
Inventories, net 593,006 529,075
Reserve for obsolescence 373,171 408,340
Decrease in inventory reserve $ 35,169