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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, RISKS AND UNCERTAINTIES - Rent Revenues (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2020
Accounting Policies [Abstract]      
Minimum rents $ 6,362 $ 5,589 $ 9,245
Overage and percentage rents $ 773 $ 726 $ 656