Note 7 - Intangible Assets (Tables)

12 Months Ended

Sep. 30, 2014

Disclosure Text Block [Abstract]

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

	September 30,
	2014			2013
Cost	$	86,498		$	93,938
Accumulated amortization		(32,663	)		(42,288	)
Intangible assets, net	$	53,835		$	51,650

	Year ended September 30,
	2014		2013
Amortization expense	$	5,725	$	23,317
Loss on sale or impairment of patents		4,580		81,307
Net sale or impairment of patents	$	10,305	$	104,624

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

Estimated Amortization Expense Years Ended September 30,
2015	$	5,631
2016		5,631
2017		5,631
2018		5,631
2019		5,631
Thereafter		25,680
	$	53,835