Summary of Significant Accounting Policies, Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Property and Equipment [Abstract]
Impairment of property and equipment	$ 0	$ 0	$ 0
Company Vehicles [Member]
Property and Equipment [Abstract]
Estimated useful lives of assets	5 years
Buildings and Improvements [Member] | Minimum [Member]
Property and Equipment [Abstract]
Estimated useful lives of assets	10 years
Buildings and Improvements [Member] | Maximum [Member]
Property and Equipment [Abstract]
Estimated useful lives of assets	39 years
Leasehold Improvements [Member]
Property and Equipment [Abstract]
Estimated useful lives of assets	15 years
Machinery and Equipment [Member] | Minimum [Member]
Property and Equipment [Abstract]
Estimated useful lives of assets	5 years
Machinery and Equipment [Member] | Maximum [Member]
Property and Equipment [Abstract]
Estimated useful lives of assets	7 years
Office Equipment [Member] | Minimum [Member]
Property and Equipment [Abstract]
Estimated useful lives of assets	5 years
Office Equipment [Member] | Maximum [Member]
Property and Equipment [Abstract]
Estimated useful lives of assets	7 years