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Description of Business and Basis of Presentation - (Details) | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Mar. 31, 2022 USD ($) a property | Mar. 31, 2022 USD ($) a property | Mar. 31, 2021 USD ($) | Mar. 31, 2022 USD ($) a property segment | Mar. 31, 2021 USD ($) | Sep. 30, 2021 USD ($)
Property Plant And Equipment [Line Items] |  |  |  |  |  |
Number of business segments | segment |  |  |  | 2 |  |
Proceeds from sale of West Ranch | $ 2,660,000 |  |  |  |  |
Revenue, description of timing |  |  |  | Receivables under contracts, whereby pricing is based on contractual and market prices, are primarily paid at the floor amount and are collected within seven days after the harvest week. Any adjustments to pricing as a result of changes in market prices are collected or paid thirty to sixty days after final market pricing is published. |  |
Accounts receivable, net | $ 12,527,000 | $ 12,527,000 |  | $ 12,527,000 |  | $ 6,105,000
Net Income (loss) attributable to subsidiary |  | $ (85,000) | $ 23,000 | $ (136,000) | $ (18,000) |
Citree |  |  |  |  |  |
Property Plant And Equipment [Line Items] |  |  |  |  |  |
Ownership interest (as a percent) | 51.00% | 51.00% | 51.00% | 51.00% | 51.00% |
Citree |  |  |  |  |  |
Property Plant And Equipment [Line Items] |  |  |  |  |  |
Net Income (loss) attributable to subsidiary |  | $ (174,000) | $ 45,000 | $ (278,000) | $ (37,000) |
Citrus |  |  |  |  |  |
Property Plant And Equipment [Line Items] |  |  |  |  |  |
Accounts receivable, net | $ 10,051,000 | $ 10,051,000 |  | $ 10,051,000 |  | $ 3,161,000
Land |  |  |  |  |  |
Property Plant And Equipment [Line Items] |  |  |  |  |  |
Area of land owned (in acres) | a | 75,000 | 75,000 |  | 75,000 |  |
Number of primary classifications | property | 2 | 2 |  | 2 |  |
Mineral Rights |  |  |  |  |  |
Property Plant And Equipment [Line Items] |  |  |  |  |  |
Area of land owned (in acres) | a | 90,000 | 90,000 |  | 90,000 |  |

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