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Related party disclosures (Tables)
 12 Months Ended
Dec. 31, 2022
Related party disclosures [Abstract]  
Schedule of compensation to key management personnel
($000s)  2022   2021 
Compensation of directors:        
Directors’ fees   560    431 
Stock-based compensation  675   704 
    1,235    1,135 
           
Compensation of key management personnel:          
Salaries and consulting fees   7,892    5,773 
Stock-based compensation   2,026    2,226 
    9,918    7,999 
    11,153    9,134