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Economic Dependence (Narrative) (Details) - Revenue [Member] - Customer Concentration Risk [Member]
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
One Customer [Member]        
Concentration risk, percentage 0.00%   100.00%  
Three Customers [Member]        
Concentration risk, percentage   0.00%   91.00%