Goodwill And Intangible Assets (Other Intangible Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Sep. 30, 2016
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 20,702	$ 21,069
Accumulated Amortization	11,699	11,772
Net Carrying Amount	9,003	9,297
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	16,578	16,982
Accumulated Amortization	10,319	10,436
Net Carrying Amount	6,259	6,546
Trademarks And Tradenames [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	133	133
Net Carrying Amount	133	133
Licenses And Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,434	3,397
Accumulated Amortization	823	779
Net Carrying Amount	2,611	2,618
Other Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	557	557
Accumulated Amortization	$ 557	$ 557