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Debt (Details) - Revolving Credit Facility [Member]
12 Months Ended
Sep. 30, 2021
USD ($)
Ratio
Sep. 01, 2021
USD ($)
Sep. 30, 2020
USD ($)
Line Of Credit Facility [Line Items]      
Revolving loan credit facility   $ 100,000,000  
Borrowing base of credit facility $ 27,500,000    
Credit facility maturity Sep. 01, 2025    
Effective Interest rate 3.75%    
Debt issuance cost net of amortization $ 284,349    
Funded debt to EBITDA ratio 350.00%    
Credit facility outstanding amount $ 17,500,000   $ 17,500,000
Availability under outstanding credit facility $ 10,000,000   $ 10,000,000
Prime Rate [Member] | U.S Federal Reserve System [Member]      
Line Of Credit Facility [Line Items]      
Interest rate basis 0.50%    
Minimum [Member]      
Line Of Credit Facility [Line Items]      
Interest rate basis 80.00%    
Current ratio 100.00%    
Leverage ratio | Ratio 2.50    
Minimum [Member] | Prime Rate [Member] | U.S Federal Reserve System [Member]      
Line Of Credit Facility [Line Items]      
Interest rate basis 1.75%    
Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]      
Line Of Credit Facility [Line Items]      
Interest rate basis 2.75%    
Maximum [Member]      
Line Of Credit Facility [Line Items]      
Percentage of available commitment to borrowing basis 10.00%    
Maximum [Member] | Prime Rate [Member] | U.S Federal Reserve System [Member]      
Line Of Credit Facility [Line Items]      
Interest rate basis 2.75%    
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]      
Line Of Credit Facility [Line Items]      
Interest rate basis 3.75%