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Stockholders' Equity (Details) (USD $)	3 Months Ended		6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Changes in shareholders' equity
Beginning balance			$ 22,421,769
Beginning Balance, Shares			32,374,499
Issuance of common stock upon exercise of stock options			19,228
Issuance of common stock upon exercise of stock options, Shares			24,700
Share-based compensation expense			390,303	277,470
Net loss	(459,378)	(291,888)	(559,754)	22,058
Ending balance	22,271,546		22,271,546
Ending Balance, Shares	32,399,199		32,399,199
Common Stock [Member]
Changes in shareholders' equity
Beginning balance			324
Beginning Balance, Shares			32,374,499
Issuance of common stock upon exercise of stock options, Shares			24,700
Ending balance	324		324
Ending Balance, Shares	32,399,199		32,399,199
Additional Paid-in Capital [Member]
Changes in shareholders' equity
Beginning balance			86,358,011
Issuance of common stock upon exercise of stock options			19,228
Share-based compensation expense			390,303
Ending balance	86,767,542		86,767,542
Accumulated Deficit [Member]
Changes in shareholders' equity
Beginning balance			(63,936,566)
Net loss			(559,754)
Ending balance	$ (64,496,320)		$ (64,496,320)

X

- Definition

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

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