Acquisitions (Narrative) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Latista [Member]	Dec. 02, 2013 Latista [Member]	Dec. 31, 2013 Latista [Member] Trademarks [Member]	Dec. 31, 2013 Latista [Member] Technology [Member]	Dec. 31, 2013 Latista [Member] Customer Relationships [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net				$ 34,875
Deferred Tax Liabilities, Gross			1,083
Deferred Tax Assets, Gross			1,083
Deferred Tax Asset, Gross, Current			781
Deferred Tax Assets, Gross, Noncurrent			946
Deferred Tax Liabilities, Gross, Noncurrent			1,727
Revenue from acquisition			200
Net loss from acquisition			$ (500)
Net loss per share, basic and diluted	$ (0.27)	$ (0.62)	$ 0.02
Intangible assets acquired, useful life					3 years	3 years	10 years