Debt - Future Payment (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	$ 196
Long-term Debt, Maturities, Repayments of Principal in Year Two	10,317
Long-term Debt, Maturities, Repayments of Principal in Year Three	27
Interest Expense, Long-term Debt	(60)
Long-term Debt	10,480	10,498
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	0
Long-term Debt, Maturities, Repayments of Principal in Year Two	317
Long-term Debt, Maturities, Repayments of Principal in Year Three	27
Interest Expense, Long-term Debt	(60)
Long-term Debt	284	498
Insurance Financing [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	196
Long-term Debt	196
Medium-term Notes [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Year Two	10,000
Long-term Debt	$ 10,000