Income Taxes (Schedule Of Components Of Provision For Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Income Taxes [Abstract]
Current, federal	$ 1,857	$ 5,512	$ 5,426
Current, state and local	194	511	314
Current, foreign	2,149	2,370	1,931
Current tax provision	4,200	8,393	7,671
Deferred, federal	3,927	2,360	4,002
Deferred, state and local	388	107	221
Deferred, foreign	(475)	667	(1)
Deferred tax provision	3,840	3,134	4,222
Income tax provision	$ 8,040	$ 11,527	$ 11,893