RELATED-PARTY TRANSACTIONS - Narrative (Details)												1 Months Ended	12 Months Ended		24 Months Ended
	Feb. 13, 2024 USD ($)	Apr. 20, 2023 USD ($) $ / shares shares	Apr. 19, 2023 USD ($)	Oct. 01, 2022 USD ($)	Sep. 19, 2022 $ / shares shares	Sep. 13, 2022 $ / shares shares	Jul. 09, 2022 USD ($)	Feb. 01, 2022 USD ($)	Nov. 02, 2021 USD ($)	Aug. 02, 2021 USD ($)	Jul. 09, 2021 USD ($)	Apr. 30, 2023 shares	Dec. 31, 2023 USD ($) $ / T owner T $ / shares shares	Dec. 31, 2022 USD ($) shares	Oct. 31, 2023 USD ($)	Jan. 31, 2024 $ / shares	May 15, 2022 $ / shares shares
Related Party Transaction [Line Items]
Fuel													$ 28,590,348	$ 32,970,826
Operations and maintenance													$ 32,836,172	$ 57,030,189
Granted (in shares) | shares													0	20,597
Warrants issued during period (in shares) | shares																	631,800
Warrant exercise price of warrants (in USD per share) | $ / shares													$ 0.01				$ 25.00
September 2022 Warrants
Related Party Transaction [Line Items]
Warrants issued during period (in shares) | shares					560,241
Warrant exercise price of warrants (in USD per share) | $ / shares					$ 17.50
September 2022 Warrants | Subsequent Event
Related Party Transaction [Line Items]
Warrant exercise price of warrants (in USD per share) | $ / shares																$ 7.51
Pre-Funded Warrants
Related Party Transaction [Line Items]
Warrants issued during period (in shares) | shares					272,565
Warrant exercise price of warrants (in USD per share) | $ / shares					$ 0.001
Private placement With Greg Beard, Co-Chairman And Chief Executive Officer
Related Party Transaction [Line Items]
Stock issued and sold during period (in shares) | shares					60,241
Coal Valley Properties, LLC | Coal Valley Properties, LLC
Related Party Transaction [Line Items]
Number of owners | owner													1
Q Power LLC | Coal Reclamation Partnership
Related Party Transaction [Line Items]
Ownership percentage by noncontrolling owners													16.26%
Management Fee, Panther Creek Plant | Olympus Stronghold Services, LLC
Related Party Transaction [Line Items]
Related party transaction				$ 500,000									$ 1,000,000
Independent Consulting Agreement, Management Fee After Adjustment
Related Party Transaction [Line Items]
Related party transaction			$ 200,000
Related party transaction, percentage			0.10
Independent Consulting Agreement, Management Fee Before Adjustment
Related Party Transaction [Line Items]
Related party transaction			$ 600,000
Related party
Related Party Transaction [Line Items]
Fuel													$ 3,995,019	$ 3,854,881
Related party | Olympus Stronghold Services, LLC | Subsequent Event
Related Party Transaction [Line Items]
Related party, ongoing monthly assistance	$ 10,000
Related party | Waste Coal Agreement (the “WCA”) | Coal Valley Sales, LLC
Related Party Transaction [Line Items]
Waste coal annual quantity committed (in ton) | T													200,000
Waste coal, handling fee (in USD per ton) | $ / T													6.07
Waste coal commitment, units in excess of annual commitment, price per unit (in USD per ton) | $ / T													1.00
Fuel													$ 855,605	733,458
Related party | Fuel Service and Beneficial Use Agreement ("FBUA") | Northampton Fuel Supply Company, Inc.
Related Party Transaction [Line Items]
Fuel													3,139,414	3,121,423
Related party | Fuel Management Agreement | Panther Creek Fuel Services LLC
Related Party Transaction [Line Items]
Operations and maintenance													929,942	1,697,850
Related party | Fuel Management Agreement | Scrubgrass Fuel Services LLC
Related Party Transaction [Line Items]
Operations and maintenance													374,944	780,410
Related party | Management Fee | Olympus Stronghold Services, LLC
Related Party Transaction [Line Items]
Related party transaction															$ 1,000,000
Related party | Management Fee | Panther Creek Energy Services LLC
Related Party Transaction [Line Items]
Related party transaction										$ 175,000
Related party | Management Fee | Scrubgrass Energy Services LLC
Related Party Transaction [Line Items]
Related party transaction							$ 325,000	$ 175,000			$ 250,000
Related party transaction, period											12 months
Related party | Mobilization Fee | Olympus Stronghold Services, LLC
Related Party Transaction [Line Items]
Related party transaction									$ 150,000
Related party | Management Services Agreement | William Spence
Related Party Transaction [Line Items]
Related party transaction													669,095	1,086,649
Related party | Termination of Omnibus Services Agreement | Olympus Stronghold Services, LLC | Subsequent Event
Related Party Transaction [Line Items]
Related party, ongoing monthly assistance	$ 10,000
Related party | Operations and Maintenance Agreement | Panther Creek Energy Services LLC
Related Party Transaction [Line Items]
Related party transaction							$ 325,000				$ 250,000		1,856,501	1,697,850
Related party transaction, period											12 months
Related party | Operations and Maintenance Agreement | Scrubgrass Energy Services LLC
Related Party Transaction [Line Items]
Operations and maintenance													$ 2,269,290	$ 6,476,968
Related party | Independent Consulting Agreement
Related Party Transaction [Line Items]
Granted (in shares) | shares												250,000
Chief Executive Officer | September 2022 Warrants
Related Party Transaction [Line Items]
Warrants issued during period (in shares) | shares						60,241
Warrant exercise price of warrants (in USD per share) | $ / shares		$ 10.10				$ 17.50
Chief Executive Officer | Private placement With Greg Beard, Co-Chairman And Chief Executive Officer
Related Party Transaction [Line Items]
Stock issued and sold during period (in shares) | shares		100,000				60,241
Sale of stock, consideration received		$ 1,000,000
Chief Executive Officer | Private placement With Greg Beard, Co-Chairman And Chief Executive Officer | Pre-Funded Warrants
Related Party Transaction [Line Items]
Warrants issued during period (in shares) | shares		100,000