SEGMENT REPORTING - Segment Income and Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Revenues:
Revenues	$ 114,562	$ 51,237	$ 168,801	$ 175,659
Cost of revenues:
Total cost of revenues	83,912	44,695	126,096	110,180
Gross Profit, Total	30,650	6,542	42,705	65,479
Other operating expenses:
General and administrative expenses	19,645	15,546	36,938	32,866
Operating income (loss)	8,516	(12,385)	159	25,920
Total other income (expense)	(18,276)	11,495	(30,084)	2,799
(Loss) income before income taxes	(9,760)	(890)	(29,925)	28,719
Parent Company
Other operating expenses:
General and administrative expenses	7,360	6,313	14,086	11,090
Operating Segments
Other operating expenses:
General and administrative expenses	14,774	12,614	28,460	28,469
Operating income (loss)	15,876	(6,072)	14,245	37,010
Intellectual property operations
Revenues:
Revenues	60,913	329	61,635	70,234
Cost of revenues:
Total cost of revenues	46,230	6,558	51,063	34,470
Gross Profit, Total	14,683	(6,229)	10,572	35,764
Intellectual property operations | Operating Segments
Other operating expenses:
General and administrative expenses	5,289	1,384	8,546	4,869
Operating income (loss)	9,394	(7,613)	2,026	30,895
Industrial operations
Revenues:
Revenues	6,002	6,590	13,184	14,266
Cost of revenues:
Total cost of revenues	3,042	3,406	6,321	7,470
Gross Profit, Total	2,960	3,184	6,863	6,796
Industrial operations | Operating Segments
Other operating expenses:
General and administrative expenses	2,412	3,110	5,439	6,420
Operating income (loss)	548	74	1,424	376
Energy operations
Revenues:
Revenues	20,545	15,317	39,214	33,623
Cost of revenues:
Total cost of revenues	11,685	12,309	23,374	25,007
Gross Profit, Total	8,860	3,008	15,840	8,616
Energy operations | Operating Segments
Other operating expenses:
General and administrative expenses	873	915	2,536	2,522
Operating income (loss)	7,987	2,093	13,304	6,094
Manufacturing Operations
Revenues:
Revenues	27,102	29,001	54,768	57,536
Cost of revenues:
Total cost of revenues	22,955	22,422	45,338	43,233
Gross Profit, Total	4,147	6,579	9,430	14,303
Manufacturing Operations | Operating Segments
Other operating expenses:
General and administrative expenses	6,200	7,205	11,939	14,658
Operating income (loss)	(2,053)	(626)	(2,509)	(355)
License fees
Revenues:
Revenues	60,913	329	61,635	70,234
License fees | Intellectual property operations
Revenues:
Revenues	60,913	329	61,635	70,234
License fees | Industrial operations
Revenues:
Revenues	0	0	0	0
License fees | Energy operations
Revenues:
Revenues	0	0	0	0
License fees | Manufacturing Operations
Revenues:
Revenues	0	0	0	0
Revenues - industrial operations
Revenues:
Revenues	6,002	6,590	13,184	14,266
Revenues - industrial operations | Intellectual property operations
Revenues:
Revenues	0	0	0	0
Revenues - industrial operations | Industrial operations
Revenues:
Revenues	6,002	6,590	13,184	14,266
Revenues - industrial operations | Energy operations
Revenues:
Revenues	0	0	0	0
Revenues - industrial operations | Manufacturing Operations
Revenues:
Revenues	0	0	0	0
Oil sales
Revenues:
Revenues	11,578	6,918	20,230	14,866
Oil sales | Intellectual property operations
Revenues:
Revenues	0	0	0	0
Oil sales | Industrial operations
Revenues:
Revenues	0	0	0	0
Oil sales | Energy operations
Revenues:
Revenues	11,578	6,918	20,230	14,866
Oil sales | Manufacturing Operations
Revenues:
Revenues	0	0	0	0
Natural gas sales
Revenues:
Revenues	3,533	4,034	9,653	9,374
Natural gas sales | Intellectual property operations
Revenues:
Revenues	0	0	0	0
Natural gas sales | Industrial operations
Revenues:
Revenues	0	0	0	0
Natural gas sales | Energy operations
Revenues:
Revenues	3,533	4,034	9,653	9,374
Natural gas sales | Manufacturing Operations
Revenues:
Revenues	0	0	0	0
Natural gas liquids sales
Revenues:
Revenues	4,774	3,907	8,063	8,572
Natural gas liquids sales | Intellectual property operations
Revenues:
Revenues	0	0	0	0
Natural gas liquids sales | Industrial operations
Revenues:
Revenues	0	0	0	0
Natural gas liquids sales | Energy operations
Revenues:
Revenues	4,774	3,907	8,063	8,572
Natural gas liquids sales | Manufacturing Operations
Revenues:
Revenues	0	0	0	0
Other service sales
Revenues:
Revenues	660	458	1,268	811
Other service sales | Intellectual property operations
Revenues:
Revenues	0	0	0	0
Other service sales | Industrial operations
Revenues:
Revenues	0	0	0	0
Other service sales | Energy operations
Revenues:
Revenues	660	458	1,268	811
Other service sales | Manufacturing Operations
Revenues:
Revenues	0	0	0	0
Air distribution
Revenues:
Revenues	8,790	9,602	17,351	19,458
Air distribution | Intellectual property operations
Revenues:
Revenues	0	0	0	0
Air distribution | Industrial operations
Revenues:
Revenues	0	0	0	0
Air distribution | Energy operations
Revenues:
Revenues	0	0	0	0
Air distribution | Manufacturing Operations
Revenues:
Revenues	8,790	9,602	17,351	19,458
Transportation safety
Revenues:
Revenues	10,458	11,005	20,983	21,133
Transportation safety | Intellectual property operations
Revenues:
Revenues	0	0	0	0
Transportation safety | Industrial operations
Revenues:
Revenues	0	0	0	0
Transportation safety | Energy operations
Revenues:
Revenues	0	0	0	0
Transportation safety | Manufacturing Operations
Revenues:
Revenues	10,458	11,005	20,983	21,133
Office products
Revenues:
Revenues	7,854	8,394	16,434	16,945
Office products | Intellectual property operations
Revenues:
Revenues	0	0	0	0
Office products | Industrial operations
Revenues:
Revenues	0	0	0	0
Office products | Energy operations
Revenues:
Revenues	0	0	0	0
Office products | Manufacturing Operations
Revenues:
Revenues	$ 7,854	$ 8,394	$ 16,434	$ 16,945