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Long-Term Debt (Details) - Revolving Credit Facility [Member]
9 Months Ended
Apr. 15, 2021
USD ($)
Apr. 14, 2021
USD ($)
Apr. 07, 2021
USD ($)
Ratio
Apr. 06, 2021
USD ($)
Jun. 30, 2021
USD ($)
Line Of Credit Facility [Line Items]          
Revolving loan credit facility         $ 200,000,000
Borrowing base of credit facility         $ 28,500,000
Credit facility maturity         Nov. 30, 2023
Effective Interest rate         4.00%
Debt issuance cost net of amortization         $ 252,001
Funded debt to EBITDA ratio         350.00%
Swap agreement period         18 months
Credit facility outstanding amount         $ 19,900,000
Availability under outstanding credit facility         $ 8,600,000
BOKF, NA dba Bank of Oklahoma [Member]          
Line Of Credit Facility [Line Items]          
Borrowing base of credit facility     $ 29,000,000.0    
Credit facility maturity     Nov. 30, 2023    
Borrowing base of credit facility, quarterly reduction amount $ 500,000 $ 600,000      
Borrowing base of credit facility, quarterly reduction term description     Quarterly Commitment Reductions from $600,000 to $500,000, commencing on April 15, 2021.    
Distribution allowance     $ 1,500,000 $ 1,000,000.0  
Percentage of available commitment to total commitment for increasing distribution allowance     20.00%    
Minimum [Member]          
Line Of Credit Facility [Line Items]          
Current ratio         100.00%
Minimum [Member] | Prime Rate [Member]          
Line Of Credit Facility [Line Items]          
Interest rate basis         1.00%
Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]          
Line Of Credit Facility [Line Items]          
Interest rate basis         2.50%
Maximum [Member] | BOKF, NA dba Bank of Oklahoma [Member]          
Line Of Credit Facility [Line Items]          
Leverage ratio | Ratio     2.75    
Maximum [Member] | Prime Rate [Member]          
Line Of Credit Facility [Line Items]          
Interest rate basis         1.75%
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]          
Line Of Credit Facility [Line Items]          
Interest rate basis         3.25%