Long-Term Debt (Schedule of Interest Costs) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Long-Term Debt [Abstract]
Interest expense	$ 969	$ 1,257	$ 1,616
Interest capitalized	204	79	100
Total interest cost	$ 1,173	$ 1,336	$ 1,716