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Leases - Future Minimum Lease Payments Under Capitalized Leases (Detail) (USD $)	Dec. 31, 2012	Sep. 30, 2012
Future Minimum Lease Payments Under Capital Leases And Operating Leases For Continuing Operations [Line Items]
2013	$ 192,634
2014	256,846
2015	256,846
2016	256,846
2017	256,846
2018	256,846
2019 and thereafter	107,019
Less interest	(139,720)
Principal	1,444,161
Less current portion	(216,419)	(214,801)
Noncurrent portion	$ 1,227,743	$ 1,282,458

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid within one year (or one operating cycle, if longer) of the balance sheet date.

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