Income Taxes (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Income Taxes [Line Items]
Effective tax rate	(27.20%)	28.60%	31.40%
U.S. Federal statutory rate	35.00%	35.00%	35.00%
Deferred taxes on undistributed earnings	$ 68
Undistributed earnings of foreign subsidiaries	13,085	14,262	13,047
Unrecognized tax benefits that would impact effective tax rate	507	547	666
Unrecognized tax benefits, related interest and penalties	77	82
Unrecognized tax benefits and related interest and penalties expected to reverse within the next 12 months	$ 285
Minimum [Member]
Income Taxes [Line Items]
Statute of limitations on state income tax returns	3 years
Statute of limitations on the examination of tax returns	2 years
Maximum [Member]
Income Taxes [Line Items]
Statute of limitations on state income tax returns	4 years
Statute of limitations on the examination of tax returns	6 years