Basis of Presentation - Intangibles (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 31, 2014		Sep. 30, 2013
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 6,356		$ 6,303
Accumulated Amortization	(3,176)		(2,801)
Net Carrying Amount	3,180		3,502
Non-compete agreements
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,068		1,065
Accumulated Amortization	(841)		(717)
Net Carrying Amount	227		348
Non-compete agreements | Minimum [Member]
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Useful Life (in years)	4 years
Non-compete agreements | Maximum [Member]
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Useful Life (in years)	8 years
Customer lists
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	886		871
Accumulated Amortization	(582)		(532)
Net Carrying Amount	304		339
Useful Life (in years)	10 years
Technology
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,455		2,426
Accumulated Amortization	(1,593)		(1,422)
Net Carrying Amount	862		1,004
Technology | Minimum [Member]
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Useful Life (in years)	5 years
Technology | Maximum [Member]
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Useful Life (in years)	10 years
In-process research and development
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,600	[1]	1,600	[1]
Accumulated Amortization	0	[1]	0	[1]
Net Carrying Amount	1,600	[1]	1,600	[1]
Other
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	347		341
Accumulated Amortization	(160)		(130)
Net Carrying Amount	$ 187		$ 211
Other | Minimum [Member]
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Useful Life (in years)	2 years
Other | Maximum [Member]
Acquired Finite and Indefinite-Lived Intangible Assets [Line Items]
Useful Life (in years)	10 years

[1] The in-process research and development will be amortized over its useful life when it has reached technological feasibility.