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Real Estate Development - Narrative (Details)
1 Months Ended 3 Months Ended 6 Months Ended 47 Months Ended
Nov. 30, 2021
USD ($)
Jan. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Jul. 31, 2022
USD ($)
Apr. 30, 2022
USD ($)
residentialUnit
Apr. 30, 2022
USD ($)
residentialUnit
Apr. 30, 2021
USD ($)
Oct. 31, 2021
USD ($)
Nov. 10, 2015
USD ($)
Oct. 31, 2005
a
property
Real Estate Properties [Line Items]                    
Real estate investments, joint ventures         $ 1,000,000 $ 1,000,000        
Line of Credit Facility Extension Option Period         1 year 1 year        
Net proceeds from sale of real estate property         $ 2,543,000 $ 2,543,000   $ 2,543,000    
Collection on note receivable           $ 2,600,000 $ 25,000      
Sevilla | Disposal Group, Not Discontinued Operations | Forecast                    
Real Estate Properties [Line Items]                    
Consideration for sale of property       $ 2,700,000            
Cash proceeds from sale of real estate       $ 2,550,000            
LLCB                    
Real Estate Properties [Line Items]                    
Number of residential units sold | residentialUnit         586 586        
Unsecured Line of Credit Loan Agreement and Promissory Note                    
Real Estate Properties [Line Items]                    
Estimated value of the guarantee obligation         $ 1,080,000 $ 1,080,000        
Unsecured Line of Credit Loan Agreement and Promissory Note | LLCB                    
Real Estate Properties [Line Items]                    
Face amount of loan   $ 45,000,000                
Maximum borrowing capacity         35,000,000 35,000,000        
Unsecured Line of Credit Loan Agreement and Promissory Note | LLCB | LIBOR                    
Real Estate Properties [Line Items]                    
Basis spread on variable rate   2.85%                
LLCB | Affiliated Entity                    
Real Estate Properties [Line Items]                    
Payables to related parties         5,771,000 5,771,000   5,771,000    
East Areas I and II                    
Real Estate Properties [Line Items]                    
Number of real estate properties | property                   2
Number of acres of land for real estate development | a                   550
East Area I | Lewis Group of Companies                    
Real Estate Properties [Line Items]                    
Ownership percentage                 50.00%  
Equity method investment, aggregate cost                 $ 20,000,000  
Centennial Property                    
Real Estate Properties [Line Items]                    
Net proceeds from sale of real estate property     $ 2,983,000              
Net proceeds from sales of real estate development assets     3,250,000              
Proceeds from issuance of debt     $ 3,000,000              
Collection on note receivable $ 250,000       161,000     $ 400,000    
Interest rate 4.00%                  
Carrying value of note         $ 2,350,000 $ 2,350,000