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Subsidiary Notes Payable - Disclosure of convertible notes (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Convertible Notes [Roll Forward]    
Beginning balance $ 4,641  
Ending balance 2,345 $ 4,641
Subsidiary convertible notes    
Convertible Notes [Roll Forward]    
Beginning balance 2,696 25,223
Gross principal - issuance of notes - financing activity 393 2,215
Accrued interest on convertible notes - finance costs 60 880
Conversion to subsidiary preferred shares   (25,797)
Change in fair value 502 175
Deconsolidation (3,403)  
Ending balance 248 2,696
Vedanta | Subsidiary convertible notes    
Convertible Notes [Roll Forward]    
Beginning balance 0 25,000
Gross principal - issuance of notes - financing activity 0 0
Accrued interest on convertible notes - finance costs 0 797
Conversion to subsidiary preferred shares   (25,797)
Change in fair value 0 0
Deconsolidation 0  
Ending balance 0 0
Knode | Subsidiary convertible notes    
Convertible Notes [Roll Forward]    
Beginning balance 94 89
Gross principal - issuance of notes - financing activity 0 0
Accrued interest on convertible notes - finance costs 5 5
Conversion to subsidiary preferred shares   0
Change in fair value 0 0
Deconsolidation 0  
Ending balance 99 94
Appeering | Subsidiary convertible notes    
Convertible Notes [Roll Forward]    
Beginning balance 141 134
Gross principal - issuance of notes - financing activity 0 0
Accrued interest on convertible notes - finance costs 8 8
Conversion to subsidiary preferred shares   0
Change in fair value 0 0
Deconsolidation 0  
Ending balance 149 141
Sonde | Subsidiary convertible notes    
Convertible Notes [Roll Forward]    
Beginning balance 2,461 0
Gross principal - issuance of notes - financing activity 393 2,215
Accrued interest on convertible notes - finance costs 48 70
Conversion to subsidiary preferred shares   0
Change in fair value 502 175
Deconsolidation (3,403)  
Ending balance $ 0 $ 2,461