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RELATED PARTIES (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
One Earth Energy And Nu Gen Energy [Member]
RELATED PARTIES (Details) [Line Items]
Costs and Expenses, Related Party	$ 90.2	$ 54.8	$ 171.5
Accounts Payable, Related Parties, Current	0.5	0.7
Refined Coal [Member]
RELATED PARTIES (Details) [Line Items]
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party	0.3	(0.2)	$ (0.7)
Accrued Liabilities for Commissions, Expense and Taxes		0.1
Proceeds from Contributions from Affiliates	$ 0.3	$ 0.1

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