Annual report pursuant to Section 13 and 15(d)

INVESTMENTS (Details 1)

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INVESTMENTS (Details 1) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Schedule Of Investments [Line Items]    
Fair Value with Changes Recognized in Income $ 27,929 $ 49,581
Measurement Alternative - No Readily Determinable Fair Value   538
Marketable Equity Securities [Member]    
Schedule Of Investments [Line Items]    
Fair Value with Changes Recognized in Income $ 27,929 49,581
Long-Term Investment At Cost [Member]    
Schedule Of Investments [Line Items]    
Measurement Alternative - No Readily Determinable Fair Value   $ 538