Financial Instruments and Fair Value Measurements (Narrative) (Details) (USD $)			9 Months Ended		12 Months Ended	3 Months Ended
	Jun. 30, 2013	Sep. 30, 2012	Jun. 30, 2013 Notes Receivable [Member]	Jun. 30, 2013 Borrowings [Member]	Sep. 30, 2012 Borrowings [Member]	Jun. 30, 2013 Treasury Lock [Member]
Derivative Asset, Notional Amount						$ 25,000,000
Treasury lock agreement	546,000	0
Financial liability on recurring basis	0	0
Interest rate used to estimate fair value			3.10%	2.40%	2.10%
Unrealized Gain (Loss) on Derivatives						$ 546,000