Interest Expense, Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Interest Expense, Net [Abstract]
Interest expense	$ 324	$ 538	$ 1,080	$ 1,796
Interest income	(14)	(9)	(26)	(24)
Interest expense, net	$ 310	$ 529	$ 1,054	$ 1,772