SEGMENT REPORTING - Revenue by Geographical Area (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 59,223	$ 88,047
Intellectual property operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	19,508	76,043
Industrial operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	39,715	12,004
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	36,579	28,846
Americas | Intellectual property operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	18,893	23,658
Americas | Industrial operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	17,686	5,188
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	34,423	28,193
United States | Intellectual property operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	18,882	23,256
United States | Industrial operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	15,541	4,937
Canada and Latin America
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	2,156	653
Canada and Latin America | Intellectual property operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	11	402
Canada and Latin America | Industrial operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	2,145	251
Europe, Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	9,887	4,430
Europe, Middle East and Africa | Intellectual property operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	589	1,841
Europe, Middle East and Africa | Industrial operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	9,298	2,589
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	12,757	54,771
Asia Pacific | Intellectual property operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	26	50,544
Asia Pacific | Industrial operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	12,731	4,227
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	5,207	1,910
China | Intellectual property operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	0
China | Industrial operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	5,207	1,910
India
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	2,957	1,076
India | Intellectual property operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	0
India | Industrial operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	2,957	1,076
Asia-Pacific, excluding China and India
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	4,593	51,785
Asia-Pacific, excluding China and India | Intellectual property operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	26	50,544
Asia-Pacific, excluding China and India | Industrial operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 4,567	$ 1,241