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Accrued Expenses - Additional Information (Details) (USD $)	Jun. 30, 2013	Sep. 30, 2012
Accrued Expenses [Line Items]
Unpaid payroll taxes	$ 771,000	$ 771,000

Carrying value as of the balance sheet date of obligations incurred and payable for statutory payroll taxes incurred through that date and withheld from employees pertaining to services received from them, including entity's matching share of the employees FICA taxes and contributions to the state and federal unemployment insurance programs.

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