Annual report pursuant to Section 13 and 15(d)

INVESTMENTS (Details Narrative)

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INVESTMENTS (Details Narrative) - USD ($)
 1 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2019
Oct. 31, 2018
Jul. 31, 2017
Jan. 31, 2009
Sep. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Schedule Of Investments [Line Items]              
Impairment loss for equity securities         $ 524,000 $ 515,000 $ 0
Proceeds from sale of marketable securities         $ 221,000 221,000 6,439,000
Net unrealized losses on available-for-sales on marketable securities           21,400,000 43,200,000
EJ Holding, Inc. [Member]              
Schedule Of Investments [Line Items]              
Investment amount             $ 32,000
Percentage of voting interest             40.00%
Unsecured debt   $ 13,600,000       $ 13,800,000 $ 13,600,000
Debt instrument, maturity date   Sep. 30, 2028          
Debt instrument annual interest   1.00%          
2011 Convertible notes payable [Member]              
Schedule Of Investments [Line Items]              
Debt instrument annual interest           10.00%  
Telcon, Inc. ("Telcon") [Member]              
Schedule Of Investments [Line Items]              
Shares held as marketable securities     6,643,559     6,643,559  
Investment     $ 31,800,000        
Investment, closing price           $ 4.20 $ 7.43
Telcon, Inc. ("Telcon") [Member] | API Supply Agreement [Member] | 10-year Convertible Bond [Member]              
Schedule Of Investments [Line Items]              
Convertible notes payable, carrying amount           $ 31,800,000  
Cell Seed Inc [Member]              
Schedule Of Investments [Line Items]              
Shares held as marketable securities       147,100     39,250
Investment       $ 1,100,000      
Investment, closing price             $ 6.07
Investment, in per share       $ 7.69      
Cell Seed Inc [Member] | 2011 Convertible notes payable [Member]              
Schedule Of Investments [Line Items]              
Convertible notes payable, carrying amount             $ 300,000
Proceeds from sale of marketable securities $ 221,000            
Japan Industrial Partners, Inc. [Member] | EJ Holding, Inc. [Member]              
Schedule Of Investments [Line Items]              
Percentage of voting interest             60.00%
ASU 2016-01 [Member]              
Schedule Of Investments [Line Items]              
Cumulative effect adjustment on adoption of ASU 2016-01             $ 41,400,000
Cumulative effect on accumulated deficit, tax             $ 12,300,000