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Supporting Financial Information - Accrued Payroll (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Sep. 30, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued current payroll	$ 2,599	$ 2,461
Accrued payroll	11,276	11,138
Unbilled Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued current payroll	$ 8,677	$ 8,677

Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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