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Assets Held For Sale - Narrative (Details) - USD ($) |  |  |  |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 28, 2018 | May 02, 2018 | Feb. 12, 2018 | Feb. 09, 2018 | Jan. 25, 2018 | Jan. 19, 2018 | Oct. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Held-for-sale |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |
Impairment loss |  |  |  |  |  |  |  | $ 150,000 | $ 4,131,000
Chancey Bay | Disposed of by Sale |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |
Net cash proceeds |  |  | $ 4,200,000 |  |  |  |  |  |
Gain (loss) recognized in sale of property |  |  | (51,000) |  |  |  |  |  |
Disposal group, rent expense |  |  | $ 200,000 |  |  |  |  |  |
Nursery - Gainesville | Disposed of by Sale |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |
Net cash proceeds |  |  |  | $ 6,500,000 |  |  |  |  |
Gain (loss) recognized in sale of property |  |  |  | $ 111,000 |  |  |  |  |
Breeding Herd | Disposed of by Sale |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |
Net cash proceeds |  |  |  |  | $ 7,800,000 |  |  |  |
Disposal group, rent expense |  |  |  |  | 100,000 |  |  |  |
East Ranch Parcels | Disposed of by Sale |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |
Net cash proceeds | $ 1,920,000 |  |  |  |  |  |  |  |
Gain (loss) recognized in sale of property | $ 1,759,000 |  |  |  |  |  |  |  |
Disposal group, rent expense |  |  |  |  | $ 98,750 |  |  |  |
Trailers | Disposed of by Sale |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |
Net cash proceeds |  |  |  |  |  | $ 500,000 |  | $ 31,000 |
Gain (loss) recognized in sale of property |  |  |  |  |  | $ 125,000 |  |  |
Interest rate, stated percentage |  |  |  |  |  | 5.00% |  |  |
Period remaining for amount to be paid |  |  |  |  |  | 3 years |  |  |
Gal Hog | Disposed of by Sale |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |
Net cash proceeds |  | $ 7,300,000 |  |  |  |  |  |  |
Gain (loss) recognized in sale of property |  | $ 6,709,000 |  |  |  |  |  |  |
Office Building | Fort Myers Property, Florida | Disposed of by Sale |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |
Net cash proceeds |  |  |  |  |  |  | $ 5,300,000 |  |
Gain (loss) recognized in sale of property |  |  |  |  |  |  | $ 1,751,000 |  |
Period of portion of office space in regards to sales agreement |  |  |  |  |  |  | 5 years |  |

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