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Inventories (Schedule Of Inventories Net Of Provision For Obsolescence) (Details) (USD $)	Sep. 30, 2012	Sep. 30, 2011
Inventories [Abstract]
Raw materials and stock parts	$ 455,000	$ 499,622
Work-in-process	13,554	14,056
Finished goods	60,521	53,583
Inventories, net	529,075	567,261
Reserve for obsolescence	$ 408,340	$ 392,703

Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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