Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	$ 5,651	$ 10,892
Accumulated Amortization	(4,544)	(5,573)
Impairment	0	(3,894)
Net	1,107	1,425
Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	3,155	8,396
Accumulated Amortization	(2,780)	(4,021)
Impairment	0	(3,894)
Net	$ 375	$ 481
Useful life	10 years	10 years
Trade Names
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	$ 2,122	$ 2,122
Accumulated Amortization	(1,390)	(1,178)
Impairment	0	0
Net	$ 732	$ 944
Useful life	10 years	10 years
Noncompete Agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	$ 374	$ 374
Accumulated Amortization	(374)	(374)
Impairment	0	0
Net	$ 0	$ 0
Useful life	3 years	3 years