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Intangible Assets (Details) (USD $)	12 Months Ended
Intangible Assets (Details) (USD $)	Sep. 30, 2012	Sep. 30, 2011
Schedule of intangible assets
Cost	$ 358,925	$ 458,912
Accumulated amortization	(200,468)	(232,943)
Total	158,457	225,969
Amortization expense	29,522	31,418
Loss on impairment of patents	41,621	22,551
Amortization and impairment of intangible assets	$ 71,143	$ 53,969

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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