Quarterly report pursuant to Section 13 or 15(d)

Description of Business and Basis of Presentation - Disaggregated Revenue (Details)

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Description of Business and Basis of Presentation - Disaggregated Revenue (Details) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Disaggregation Of Revenue [Line Items]    
Total Revenues $ 13,732 $ 11,005
Alico Citrus    
Disaggregation Of Revenue [Line Items]    
Total Revenues 12,926 10,175
Water Resources and Other Operations    
Disaggregation Of Revenue [Line Items]    
Total Revenues 806 830
Early and Mid-Season | Alico Citrus    
Disaggregation Of Revenue [Line Items]    
Total Revenues 9,315 9,066
Fresh Fruit | Alico Citrus    
Disaggregation Of Revenue [Line Items]    
Total Revenues 409 735
Grove Management Services | Alico Citrus    
Disaggregation Of Revenue [Line Items]    
Total Revenues 3,092 305
Other | Alico Citrus    
Disaggregation Of Revenue [Line Items]    
Total Revenues 110 69
Other | Water Resources and Other Operations    
Disaggregation Of Revenue [Line Items]    
Total Revenues 79 167
Land and Other Leasing | Water Resources and Other Operations    
Disaggregation Of Revenue [Line Items]    
Total Revenues $ 727 $ 663