Note 7 - Intangible Assets (Tables)

12 Months Ended

Sep. 30, 2013

Disclosure Text Block [Abstract]

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	September 30,
	2013			2012
Cost	$	93,938		$	358,925
Accumulated amortization		(42,288	)		(200,468	)
	$	51,650		$	158,457

	Year ended September 30,
	2013		2012
Amortization expense	$	23,317	$	29,522
Loss on sale or impairment of patents		81,307		41,621
Net sale or impairment of patents	$	104,624	$	71,143

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Estimated Amortization Expense Years Ended September 30,
2014	$	6,269
2015		6,269
2016		6,269
2017		6,269
2018		6,269
Thereafter		20,305
	$	51,650