EMPLOYEE BENEFIT PLANS, Estimated Subsidy Payments (Details) (USD $) In Thousands	Sep. 30, 2011
Disclosure of Expected Gross Prescription Drug Subsidy Receipts [Abstract]
2012	$ 198
2013	218
2014	233
2015	251
2016	271
2017 - 2021	$ 1,728

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Aggregate amount for the next five fiscal years following the first five fiscal years (that is the aggregate of fiscal years six through ten) following the balance sheet date of the prescription drug subsidy receipts expected to be received.

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Amount of the prescription drug subsidy receipts expected to be received in Year 5 after the balance sheet date.

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Amount of the prescription drug subsidy receipts expected to be received in Year 4 after the balance sheet date.

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Amount of the prescription drug subsidy receipts expected to be received in Year 1 after the balance sheet date.

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Amount of the prescription drug subsidy receipts expected to be received in Year 3 after the balance sheet date.

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Amount of the prescription drug subsidy receipts expected to be received in Year 2 after the balance sheet date.

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