Goodwill and Other Intangible Assets (Identifiable Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Carrying amount and accumulated amortization of identifiable intangible assets
Gross Carrying Amount	$ 14,090	$ 9,520
Accumulated Amortization	4,709	1,798
Net Carrying Amount	9,381	7,722
Amortization expense related to identifiable intangible assets	2,911	1,798	0
Developed product technologies [Member]
Carrying amount and accumulated amortization of identifiable intangible assets
Gross Carrying Amount	5,290	2,640
Accumulated Amortization	2,275	806
Net Carrying Amount	3,015	1,834
Customer Relationships [Member]
Carrying amount and accumulated amortization of identifiable intangible assets
Gross Carrying Amount	5,310	4,330
Accumulated Amortization	965	387
Net Carrying Amount	4,345	3,943
Trademarks [Member]
Carrying amount and accumulated amortization of identifiable intangible assets
Gross Carrying Amount	1,560	1,150
Accumulated Amortization	550	218
Net Carrying Amount	1,010	932
Covenants not to compete [Member]
Carrying amount and accumulated amortization of identifiable intangible assets
Gross Carrying Amount	1,930	1,400
Accumulated Amortization	919	387
Net Carrying Amount	$ 1,011	$ 1,013