Income Taxes (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
Current income tax provision:
U.S. federal	$ 700	$ 598	$ 1,800	$ 1,937
U.S. state and local	147	136	346	333
Non-U.S	49	96	239	211
Total current tax provision	896	830	2,385	2,481
Deferred income tax provision (benefit):
U.S. federal	(35)	(13)	1	(4)
Non-U.S	0	(2)	(6)	(4)
Total deferred tax provision	(35)	(15)	(5)	(8)
Income tax provision	$ 861	$ 815	$ 2,380	$ 2,473