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Investments in equity securities (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2022
Dec. 31, 2021
Investments in equity securities    
Cost Basis $ 250  
Net Unrealized Gains 3  
Fair Value 247 [1] $ 0
Banks and finance    
Investments in equity securities    
Cost Basis 250  
Net Unrealized Gains 3  
Fair Value [1] $ 247  
[1] The fair value of the Company's equity investments are determined based on readily available market data, and are classified as level 1 fair value measurements.