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RELATED PARTIES (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021
One Earth Energy And Nu Gen Energy [Member]
RELATED PARTIES (Details) [Line Items]
Costs and Expenses, Related Party	$ 135.4	$ 90.2	$ 54.8
Accounts Payable, Related Parties, Current	$ 1.5	0.5
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)
Proceeds from Contributions from Affiliates		$ 0.3

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Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Costs of sales and operating expenses for the period incurred from transactions with related parties.

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Amount of selling, general and administrative expenses resulting from transactions, excluding transactions that are eliminated in consolidated or combined financial statements, with related party.

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