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Income Taxes (Details) (USD $)	3 Months Ended		6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Components of income taxes
Income tax expense (benefit)	$ 123,151	$ 86,214	$ 219,271	$ (165,395)
Reconciliation of the statutory federal rate to the Company's effective income tax rate
Effective tax rates (as a percent)	10.00%	23.00%	13.00%	75.00%

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A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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