Business Combination (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Business Acquisition [Line Items]
Minority Interest Ownership Percentage By Parent	80.00%
Contingent Consideration Fair Value	$ 680	$ 786
Goodwill Tax Basis	1,448
Business Combination Acquired Receivables	1,478
Revenues From Acquisitions	4,965
Operating Income From Acquisitions	(532)
2018 Business Acquisitions
Business Acquisition [Line Items]
Total Consideration Transferred		7,413
Cash Purchase Consideration	7,091
Additional Consideration To Be Paid		15
Contingent Consideration Fair Value	$ 182
Cash Consideration Paid After Closing Date		125
2017 Business Acquisitions
Business Acquisition [Line Items]
Total Consideration Transferred		$ 20,979