Quarterly report pursuant to Section 13 or 15(d)

INVESTMENTS (Details Narrative)

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INVESTMENTS (Details Narrative) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Schedule Of Investments [Line Items]    
Impairment loss on long-term investment $ 524  
Net unrealized loss on marketable securities available-for-sale still held 21,700 $ 24,100
ASU 2016-01 [Member]    
Schedule Of Investments [Line Items]    
Cumulative effect adjustment on adoption of ASU 2016-01 41,400  
Cumulative effect on accumulated deficit, tax $ 12,300