RELATED PARTIES (Details) - USD ($) $ in Millions	12 Months Ended
Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2019
One Earth Energy And Nu Gen Energy [Member]
RELATED PARTIES (Details) [Line Items]
Costs and Expenses, Related Party	$ 54.8	$ 171.5	$ 176.8
Accounts Payable, Related Parties, Current	0.7	0.7
Refined Coal [Member]
RELATED PARTIES (Details) [Line Items]
Costs and Expenses, Related Party	(0.2)	(0.7)	$ 0.8
Accrued Liabilities for Commissions, Expense and Taxes	0.1	0.5
Proceeds from Contributions from Affiliates	$ 0.1	$ 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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The carrying amount for commissions, taxes and other expenses that were incurred but unpaid as of the balance sheet date.

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

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The cash inflow from an entity that is affiliated with the entity by means of direct or indirect ownership.

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