Other Financial Data (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Balance as of October 1,	$ 1,880	$ 1,536	$ 2,120
Additions charged to expense	239	1,048	197
Deductions	(639)	(704)	(781)
Balance as of September 30,	$ 1,480	$ 1,880	$ 1,536