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INVESTMENTS IN DEBT AND EQUITY SECURITIES (Summary of debt and equity securities) (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]    
Corporate Bonds $ 8,293 $ 9,431
Equity Securities 14,512 19,374
Investments in debt and equity securities $ 22,805 $ 28,805