Quarterly report pursuant to Section 13 or 15(d)

INVESTMENTS (Details)

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INVESTMENTS (Details) - Investment in Convertible Bonds [Member] - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Schedule Of Investments [Line Items]    
Balance, beginning of period $ 27,866  
Fair value at issuance date   $ 22,059
Change in fair value included in the statement of other comprehensive income 805 5,807
Balance, end of period $ 28,671 $ 27,866