Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2017
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 7,378	$ 7,403
Accumulated Amortization	(3,278)	(3,908)
Net Carrying Amount	4,100	3,495
Customer lists
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,432	2,471
Accumulated Amortization	(1,164)	(1,521)
Net Carrying Amount	$ 1,268	950
Customer lists | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life	6 years
Customer lists | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life	10 years
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 3,214	3,386
Accumulated Amortization	(1,678)	(2,024)
Net Carrying Amount	$ 1,536	1,362
Technology | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life	5 years
Technology | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life	10 years
Trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,455	1,468
Accumulated Amortization	(219)	(285)
Net Carrying Amount	$ 1,236	1,183
Trade names | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life	10 years
Trade names | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life	15 years
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 277	78
Accumulated Amortization	(217)	(78)
Net Carrying Amount	$ 60	$ 0
Other | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life	2 years
Other | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life	10 years