FAIR VALUE MEASUREMENT - Financial Instruments Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financial assets:
Stanley Brothers USA Holdings Purchase Option	$ 2,332	$ 2,300
Debt interest rate conversion feature	778	1,320
Total financial assets	3,110	3,620
Investment in unconsolidated entity:	11,100	0
Financial liabilities:
Debt conversion option	7,407	12,995
Level 1
Financial assets:
Stanley Brothers USA Holdings Purchase Option	0	0
Debt interest rate conversion feature	0	0
Total financial assets	0	0
Investment in unconsolidated entity:	0
Financial liabilities:
Debt conversion option	0	0
Level 2
Financial assets:
Stanley Brothers USA Holdings Purchase Option	0	0
Debt interest rate conversion feature	0	0
Total financial assets	0	0
Investment in unconsolidated entity:	0
Financial liabilities:
Debt conversion option	7,407	12,995
Level 3
Financial assets:
Stanley Brothers USA Holdings Purchase Option	2,332	2,300
Debt interest rate conversion feature	778	1,320
Total financial assets	3,110	3,620
Investment in unconsolidated entity:	11,100
Financial liabilities:
Debt conversion option	$ 0	$ 0