Income and Other Taxes - Narrative (Details) - USD ($)	3 Months Ended	9 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 27,000	$ 6,000	$ 25,000	$ 214,000
Effective tax rate on continuing operations	0.40%	(0.00%)	0.30%	1.00%
Interest and penalties accrued as tax liabilities	$ 0		$ 0		$ 0
Uncertain tax reserve, period increase (decrease)	$ 0		$ 0

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 1
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
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-Paragraph 1
-Subparagraph (SX 210.7-04(9))
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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

+ References

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-Publisher FASB
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Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns.

+ References

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