Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Concentrations (Details)

v3.21.2
Summary of Significant Accounting Policies - Concentrations (Details)
 3 Months Ended 12 Months Ended
Sep. 30, 2021
USD ($)
a
Jun. 30, 2021
USD ($)
Mar. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Sep. 30, 2020
USD ($)
Jun. 30, 2020
USD ($)
Mar. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Sep. 30, 2021
USD ($)
a
Sep. 30, 2020
USD ($)
Sep. 30, 2019
USD ($)
Concentration Risk [Line Items]                      
Accounts Receivable $ 6,105,000       $ 4,347,000       $ 6,105,000 $ 4,347,000  
Revenue 4,000,000 $ 34,888,000 $ 55,944,000 $ 13,732,000 $ 4,865,000 $ 26,122,000 $ 50,515,000 $ 11,005,000      
Tropicana                      
Concentration Risk [Line Items]                      
Accounts Receivable $ 3,066,000               3,066,000    
Revenue                 $ 84,136,000 $ 80,388,000 $ 108,318,000
Area of land owned (in acres) | a 7,000               7,000    
Operating Revenue                 $ 15,752,000    
Tropicana | Total Revenue | Customer Concentration Risk                      
Concentration Risk [Line Items]                      
% of Total Revenue                 77.50% 86.90% 88.60%
% of Total Revenue                 90.10%