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TRADING SECURITIES (Tables)
3 Months Ended
Mar. 31, 2023
Investments, Debt and Equity Securities [Abstract]  
Components of Trading Securities
At March 31, 2023 and December 31, 2022, the components of trading securities were as follows:
March 31,
2023
December 31,
2022
Trading securities listed in Shanghai Stock Exchange
Cost$7,883 $14,779 
Market value12,733 20,209 
Unrealized Gain (Loss) on Trading Securities
Three Months Ended March 31,
20232022
Unrealized loss on trading securities$(654)$(3,858)