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Marketable EQUITY Securities (Tables)
3 Months Ended
Mar. 31, 2023
Marketable Equity Securities  
Schedule of marketable securities
                
   Marketable equity securities at March 31, 2023 
        Gross unrealized   Gross unrealized      
   Cost   gains   losses   Fair value 
 Common shares  $7,086,000   $55,000   $(5,773,000)  $1,368,000 

 

   Marketable equity securities at December 31, 2022 
        Gross unrealized   Gross unrealized      
   Cost   gains   losses   Fair value 
 Common shares  $10,271,000   $383,000   $(4,064,000)  $6,590,000