XML 65 R53.htm IDEA: XBRL DOCUMENT v3.20.2
Fair Value Measurements (Schedule of Fair Value of Financial Assets and Liabilities Measured on a Recurring Basis) (Details) - Fair Value [Member] - USD ($)
Jun. 30, 2020
Sep. 30, 2019
Quoted Prices in Active Markets (Level 1) [Member]    
Liabilities:    
Total $ 0 $ 0
Significant Other Observable Inputs (Level 2) [Member]    
Liabilities:    
Total 0 0
Significant Unobservable Inputs (Level 3) [Member]    
Liabilities:    
Total 123,331,232 100,900,952
Recurring [Member]    
Liabilities:    
Natural gas purchases 467,303 397,757
Total 2,816,425 1,292,098
Recurring [Member] | Interest Rate Swap [Member]    
Liabilities:    
Interest rate swap 2,349,122 894,341
Recurring [Member] | Quoted Prices in Active Markets (Level 1) [Member]    
Liabilities:    
Natural gas purchases 0 0
Total 0 0
Recurring [Member] | Quoted Prices in Active Markets (Level 1) [Member] | Interest Rate Swap [Member]    
Liabilities:    
Interest rate swap 0 0
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]    
Liabilities:    
Natural gas purchases 467,303 397,757
Total 2,816,425 1,292,098
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Interest Rate Swap [Member]    
Liabilities:    
Interest rate swap 2,349,122 894,341
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]    
Liabilities:    
Natural gas purchases 0 0
Total 0 0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Interest Rate Swap [Member]    
Liabilities:    
Interest rate swap $ 0 $ 0