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Share-Based Compensation (Details Textual) (USD $)	6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Sep. 30, 2012
Share-Based Compensation (Textual) [Abstract]
Options outstanding	3,020,139		3,463,339
Options outstanding Exercisable at prices	$ 1.31		$ 1.31
Share-Based Compensation (Additional Textual) [Abstract]
Total plan reserve	4,999,564
Average life	5 years 2 months 12 days
Options outstanding expiry	Options outstanding are exercisable at prices ranging from $0.46 to $3.13 and expire over the period from 2013 to 2022 with an average life of 5.2 years
Aggregate intrinsic value of options outstanding	$ 409,750
Aggregate intrinsic value of options exercisable	409,730
Weighted-average estimated fair value of options	$ 0.70	$ 1.07
Excess tax benefit	0	0
Unrecognized compensation cost	$ 700,000
Expected recognized cost over a weighted-average period	1 year 3 months 18 days
Maximum [Member]
Share-Based Compensation (Textual) [Abstract]
Options outstanding Exercisable at prices	$ 3.13
Minimum [Member]
Share-Based Compensation (Textual) [Abstract]
Options outstanding Exercisable at prices	$ 0.46
2005 Equity Incentive Plan [Member]
Share-Based Compensation (Textual) [Abstract]
Issuance of shares of common stock to employees, directors or consultants	3,250,000
Options outstanding	3,020,139
Additional common stock available for grant	1,388,477

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Share based compensation arrangement by share based payment award expiration period.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Aggregate unrecognized cost of option awards made to employees under a stock option plan or plans, that have yet to vest.

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The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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Number of additional shares authorized for issuance under an established share-based compensation plan.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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