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OPERATING SEGMENT REPORTING - Market Traders (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Segment Reporting
Revenue	$ 28,240	$ 25,988	$ 30,647	$ 25,542	$ 34,966	$ 37,129	$ 40,706	$ 23,740	$ 110,417	$ 136,541	$ 104,789
Asahi Refining Inc.
Operating Segment Reporting
Revenue									57,835	134,395	66,934
Auramet International LLC
Operating Segment Reporting
Revenue									50,580
Bank of Nova Scotia
Operating Segment Reporting
Revenue											33,060
Other
Operating Segment Reporting
Revenue									$ 2,002	$ 2,146	$ 4,795

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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