FAIR VALUE - HIERARCHY (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Sep. 30, 2025
Assets:
Other	$ 2,858	$ 2,589
Total assets at fair value	17,214	17,427
Liabilities:
Total liabilities at fair value	$ 14,868	11,903
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Assets
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Liabilities and Equity
Money market funds
Assets:
Assets	$ 5	5
Physical commodity contracts
Assets:
Assets	4,400	5,051
Liabilities:
Liabilities	11,025	9,811
Financial commodity contracts
Assets:
Assets	9,951	9,782
Liabilities:
Liabilities	3,843	2,092
Quoted Prices in Active Markets for Identical Assets, (Level 1)
Assets:
Other	2,858	2,589
Total assets at fair value	12,814	12,376
Liabilities:
Total liabilities at fair value	3,843	2,092
Quoted Prices in Active Markets for Identical Assets, (Level 1) | Money market funds
Assets:
Assets	5	5
Quoted Prices in Active Markets for Identical Assets, (Level 1) | Physical commodity contracts
Assets:
Assets	0	0
Liabilities:
Liabilities	0	0
Quoted Prices in Active Markets for Identical Assets, (Level 1) | Financial commodity contracts
Assets:
Assets	9,951	9,782
Liabilities:
Liabilities	3,843	2,092
Significant Other Observable Inputs (Level 2)
Assets:
Other	0	0
Total assets at fair value	4,400	5,051
Liabilities:
Total liabilities at fair value	11,025	9,811
Significant Other Observable Inputs (Level 2) | Money market funds
Assets:
Assets	0	0
Significant Other Observable Inputs (Level 2) | Physical commodity contracts
Assets:
Assets	4,400	5,051
Liabilities:
Liabilities	11,025	9,811
Significant Other Observable Inputs (Level 2) | Financial commodity contracts
Assets:
Assets	0	0
Liabilities:
Liabilities	0	0
Significant Unobservable Inputs (Level 3)
Assets:
Other	0	0
Total assets at fair value	0	0
Liabilities:
Total liabilities at fair value	0	0
Significant Unobservable Inputs (Level 3) | Money market funds
Assets:
Assets	0	0
Significant Unobservable Inputs (Level 3) | Physical commodity contracts
Assets:
Assets	0	0
Liabilities:
Liabilities	0	0
Significant Unobservable Inputs (Level 3) | Financial commodity contracts
Assets:
Assets	0	0
Liabilities:
Liabilities	$ 0	$ 0