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Note 10 - Stockholders' Equity (Details) - Changes in Stockholders' Equity (USD $)	3 Months Ended		9 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Sep. 29, 2012
Note 10 - Stockholders' Equity (Details) - Changes in Stockholders' Equity [Line Items]
Balances, September 30, 2012 (in Shares)			32,374,499
Balances, September 30, 2012			$ 324
Balances, September 30, 2012			22,421,769		22,421,769
Issuance of common stock upon exercise of stock options (in Shares)			(124,700)
Issuance of common stock upon exercise of stock options			105,228
Share-based compensation expense			582,058	476,779
Net loss	(1,108,410)	200,376	(1,668,164)	222,434
Balances, June 30, 2013 (in Shares)	32,499,199		32,499,199
Balances, June 30, 2013	325		325
Balances, June 30, 2013	21,440,891		21,440,891		22,421,769
Common Stock [Member]
Note 10 - Stockholders' Equity (Details) - Changes in Stockholders' Equity [Line Items]
Balances, September 30, 2012 (in Shares)					32,374,499
Balances, September 30, 2012					324
Issuance of common stock upon exercise of stock options (in Shares)			124,700
Issuance of common stock upon exercise of stock options			1
Balances, June 30, 2013 (in Shares)	32,499,199		32,499,199		32,374,499
Balances, June 30, 2013	325		325		324
Additional Paid-in Capital [Member]
Note 10 - Stockholders' Equity (Details) - Changes in Stockholders' Equity [Line Items]
Balances, September 30, 2012					86,358,011
Issuance of common stock upon exercise of stock options			105,227
Share-based compensation expense			582,058
Balances, June 30, 2013	87,045,296		87,045,296		86,358,011
Accumulated Deficit [Member]
Note 10 - Stockholders' Equity (Details) - Changes in Stockholders' Equity [Line Items]
Balances, September 30, 2012					(63,936,566)
Net loss			(1,668,164)
Balances, June 30, 2013	$ (65,604,730)		$ (65,604,730)		$ (63,936,566)

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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