Annual report pursuant to Section 13 and 15(d)

CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS - Narrative (Details)

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CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS    
Equity investment   $ 20,000
Fair value of investments $ 1,100 7,400
Unrealized [(gain)/loss] due to the change in fair value of the equity securities (6,332) (9,660)
Unrealized loss $ 12,600 $ 12,600