NATURE OF OPERATIONS (Details)		3 Months Ended
Jul. 27, 2022	Mar. 31, 2023 a power_generation_facility segment
Disaggregation of Revenue [Line Items]
Number of coal refuse power generation facilities owned and operating \| power_generation_facility		2
Number of operating segments \| segment		2
Reclamation Facility, Venango County, Pennsylvania
Disaggregation of Revenue [Line Items]
Area of land (in acres) \| a		650
Customized Energy Solutions, Ltd
Disaggregation of Revenue [Line Items]
Contract with supplier, term	2 years
Contract with supplier, termination notice before automatic renewal, period	60 days

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8672-108599

Name:	us-gaap_NumberOfOperatingSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration