Alico, Inc. Annual report pursuant to Section 13 and 15(d)

Assets Held For Sale - Narrative (Details)

Assets Held For Sale - Narrative (Details) - USD ($)								12 Months Ended
Assets Held For Sale - Narrative (Details) - USD ($)	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