Annual report pursuant to Section 13 and 15(d)

Investments (Narrative) (Details)

v3.21.1
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, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Aug. 20, 2020
Business Acquisition [Line Items]                  
Minority interest           $ 90      
Shares issued, value         $ 257,472 23,829      
Impairment of intangible assets         700      
Common Stock [Member]                  
Business Acquisition [Line Items]                  
Shares issued         1,492,487        
Shares issued, value         $ 2,900        
Shares issued price per share                 $ 1.94
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]                  
Shares issued 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] | Canada, Dollars [Member]                  
Business Acquisition [Line Items]                  
Penalties and costs related to investment         $ 2,200