XML 74 R63.htm IDEA: XBRL DOCUMENT v3.24.0.1
Note 14 - Fair Value Measurements - Schedule of Fair Value of Financial Assets and Liabilities Measured on a Recurring Basis (Details) - Fair Value, Recurring [Member] - USD ($)
Dec. 31, 2023
Sep. 30, 2023
Total Assets fair value $ 3,236,201 $ 4,617,455
Natural gas purchases 1,234,072 1,022,662
Total Liabilities fair value 1,234,072 1,022,662
Fair Value, Inputs, Level 1 [Member]    
Total Assets fair value 0 0
Natural gas purchases 0 0
Total Liabilities fair value 0 0
Interest rate swaps, liabilities   0
Fair Value, Inputs, Level 2 [Member]    
Total Assets fair value 3,236,201 4,617,455
Natural gas purchases 1,234,072 1,022,662
Total Liabilities fair value 1,234,072 1,022,662
Fair Value, Inputs, Level 3 [Member]    
Total Assets fair value 0 0
Natural gas purchases 0 0
Total Liabilities fair value 0 0
Interest Rate Swap [Member]    
Interest rate swaps 3,236,201  
Interest rate swaps, liabilities   4,617,455
Interest Rate Swap [Member] | Fair Value, Inputs, Level 1 [Member]    
Interest rate swaps 0  
Interest Rate Swap [Member] | Fair Value, Inputs, Level 2 [Member]    
Interest rate swaps 3,236,201  
Interest rate swaps, liabilities   4,617,455
Interest Rate Swap [Member] | Fair Value, Inputs, Level 3 [Member]    
Interest rate swaps $ 0  
Interest rate swaps, liabilities   $ 0