Property, Equipment, and Leasehold Improvements, net (Narrative) (Details) (USD $)	12 Months Ended			3 Months Ended	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 Operating expenses	Sep. 30, 2013 Minimum	Sep. 30, 2013 Maximum
Property, Plant and Equipment [Line Items]
Impairment for certain assets				$ 1,182,000
Cancellation notice period					2 months	4 months
Rental income	1,200,000	1,300,000	1,400,000
Depreciation	$ 100,000	$ 100,000	$ 100,000