Long-Term Debt (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Sep. 30, 2011
Long-term debt
Industrial development revenue bonds	$ 4,000	$ 4,400
Capital lease obligations	482	1,041
Subtotal long-term debt and capital lease obligations	4,482	5,441
Less current portion	(836)	(1,140)
Total long-term debt and capital lease obligations	$ 3,646	$ 4,301

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.

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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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