Quarterly report pursuant to Section 13 or 15(d)

Description of Business and Basis of Presentation - (Details)

v3.21.1
Description of Business and Basis of Presentation - (Details)
 3 Months Ended 6 Months Ended
Mar. 31, 2021
USD ($)
a
property
Mar. 31, 2020
USD ($)
Mar. 31, 2021
USD ($)
a
property
segment
Mar. 31, 2020
USD ($)
Sep. 30, 2020
USD ($)
Property Plant And Equipment [Line Items]          
Number of business segments | segment     2    
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 $ 11,009,000   $ 11,009,000   $ 4,347,000
Net Income (loss) attributable to subsidiary $ 23,000 $ (5,000) $ (18,000) $ 102,000  
Proceeds from federal relief program       $ 493,000  
Citree          
Property Plant And Equipment [Line Items]          
Ownership interest (as a percent) 51.00% 51.00% 51.00% 51.00%  
Citree          
Property Plant And Equipment [Line Items]          
Net Income (loss) attributable to subsidiary $ 45,000 $ (11,000) $ (37,000) $ 208,000  
Citrus          
Property Plant And Equipment [Line Items]          
Accounts receivable, net $ 9,969,000   $ 9,969,000   584,000
Land          
Property Plant And Equipment [Line Items]          
Area of land owned (in acres) | a 103,000   103,000    
Number of primary classifications | property 2   2    
Mineral Rights          
Property Plant And Equipment [Line Items]          
Area of land owned (in acres) | a 90,000   90,000    
Citrus Groves          
Property Plant And Equipment [Line Items]          
Net cash proceeds from the sale of property         $ 16,524,000