Joint Venture (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020	Nov. 30, 2017
Schedule of Equity Method Investments [Line Items]
Investment in subsidiaries	$ 87	$ 108
Income (loss) from equity method investments	$ (21)	$ 10	$ 603
Joint Venture For Alabama Project
Schedule of Equity Method Investments [Line Items]
Partnership interest	50.00%	50.00%	50.00%	50.00%

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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