Long-Term Debt (Schedule of Interest Costs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Long-Term Debt [Abstract]
Interest expense	$ 290	$ 354	$ 968	$ 1,290
Interest capitalized	31	24	60	62
Total interest cost	$ 321	$ 378	$ 1,028	$ 1,352