Annual report pursuant to Section 13 and 15(d)

Investments in Marketable Equity Securities and Long-term Investments (Narrative) (Details)

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Investments in Marketable Equity Securities and Long-term Investments (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Apr. 10, 2019
Feb. 28, 2018
Oct. 31, 2017
Sep. 30, 2017
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Business Acquisition [Line Items]                  
Shares issued, value         $ 669,916 $ 257,472 $ 23,829    
Unrealized loss on shares exchange         13,655    
Impairment of intangible assets         $ 700    
Gain on sale of long term investments         26,300        
Investments in marketable equity securities, at fair value         10,804      
Mark-to-market unrealized gain on shares         $ 24,800        
Closing price per share         $ 3.42        
Tess Inc [Member]                  
Business Acquisition [Line Items]                  
Amount of Investment                 $ 300
Ownership percentage 8.80%               52.00%
Shares issued, value         $ 100 100   $ 500  
Research and development expense                 $ 700
Intangibles               600  
Impairment of intangible assets               2,100  
Tess Inc [Member] | Capitalized cost [Member]                  
Business Acquisition [Line Items]                  
Impairment of intangible assets               600  
Tess Inc [Member] | Goodwill [Member]                  
Business Acquisition [Line Items]                  
Impairment of intangible assets               800  
Tess Inc [Member] | Research and Development Expense [Member]                  
Business Acquisition [Line Items]                  
Impairment of intangible assets               $ 700  
Tess Inc [Member] | Minimum [Member]                  
Business Acquisition [Line Items]                  
Ownership percentage               52.01%  
Tess Inc [Member] | Maximum [Member]                  
Business Acquisition [Line Items]                  
Ownership percentage               50.20%  
Tess Inc [Member] | Common Stock [Member]                  
Business Acquisition [Line Items]                  
Stock issued during period 23,800,000   75,000         189,000 75,000
Shares issued, value     $ 600         $ 220  
Shares issued price per share     $ 8.49            
Resale of shares                 25,000
Shares exchanged                 2,708,333
Canada, Dollars [Member] | Tess Inc [Member] | Common Stock [Member]                  
Business Acquisition [Line Items]                  
Shares issued, value $ 1,200                
Coinsquare [Member]                  
Business Acquisition [Line Items]                  
Minority interest   $ 9,400   $ 9,400          
Percentage owned   11.70%              
Impairment expense           $ 9,400      
Percentage of impairment of investments         100.00%        
Coinsquare [Member] | Mogo Investment Agreement [Member]                  
Business Acquisition [Line Items]                  
Shares issued, value         $ 1,800        
Shares exchanged         3,200,000        
Unrealized loss on shares exchange         $ 13,700        
Outstanding shares         3,400,000        
Coinsquare [Member] | Canada, Dollars [Member]                  
Business Acquisition [Line Items]                  
Penalties and costs related to investment         $ 2,200