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Related Party Transactions (Details Narrative) - USD ($)
12 Months Ended
Nov. 01, 2018
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2018
Related Party Transaction [Line Items]        
Indebtedness, net of debt discount and issuance costs   $ 83,800,000 $ 86,800,000  
Due from related parties $ 2,350,000      
Ed Anakar And Nourdean Anakar [Member]        
Related Party Transaction [Line Items]        
Borrowings from related party 500,000      
Allen Chhay And Bradley Chhay [Member]        
Related Party Transaction [Line Items]        
Borrowings from related party $ 100,000      
Sherwood Forest Creations, LLC [Member]        
Related Party Transaction [Line Items]        
Related Party Transaction, Amounts of Transaction   59,000 134,000 $ 321,000
Nottingham Creations and Sherwood Forest Creations LLC [Member]        
Related Party Transaction [Line Items]        
Due from related parties   0 6,588  
TW Mechanical LLC [Member]        
Related Party Transaction [Line Items]        
Related Party Transaction, Amounts of Transaction   62,000 47,000 7,000
Due from related parties   5,700 0  
TW Mechanical LLC [Member] | Third-Party General Contractor [Member]        
Related Party Transaction [Line Items]        
Related Party Transaction, Amounts of Transaction   $ 19,000 $ 452,000 $ 120,000