TRADING SECURITIES - Narrative (Details) ¥ in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2022	Sep. 19, 2022 USD ($)	Sep. 19, 2022 CNY (¥)
Investments [Abstract]
Investment in partnership				$ 4,196	¥ 30,000
Ownership percentage in partnership			18.75%	18.75%	18.75%
Proceeds from selling trading securities	$ 11,072	$ 0
Realized gain from sale of trading securities	3,994	$ 0
SMIC
Investments [Abstract]
Proceeds from selling trading securities	11,072
Realized gain from sale of trading securities	$ 3,994
Nuode Asset Management Company Limited
Investments [Abstract]
Investment in partnership				$ 22,160	¥ 160,000