v3.26.3
Patents and other intangible assets (Details)
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
patent
Sep. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Reconciliation of changes in intangible assets other than goodwill [abstract]          
Beginning balance     $ 875,186    
Charge $ 0 $ (588) (53,049) $ (68,507)  
Impairment 0 $ 0 (696,180) 0  
Ending balance 134,967   $ 134,967   $ 875,186
Number of patents | patent     6    
Patents          
Reconciliation of changes in intangible assets other than goodwill [abstract]          
Beginning balance     $ 706,748    
Ending balance 0   0   706,748
Software          
Reconciliation of changes in intangible assets other than goodwill [abstract]          
Beginning balance     168,438    
Ending balance 134,967   134,967   168,438
Cost          
Reconciliation of changes in intangible assets other than goodwill [abstract]          
Beginning balance     1,658,639 1,531,504 1,531,504
Additions     42,481   127,135
Impairment     (1,317,614)    
Ending balance 383,506   383,506   1,658,639
Cost | Patents          
Reconciliation of changes in intangible assets other than goodwill [abstract]          
Beginning balance     1,275,133 1,147,998 1,147,998
Additions     42,481   127,135
Impairment     (1,317,614)    
Ending balance 0   0   1,275,133
Cost | Software          
Reconciliation of changes in intangible assets other than goodwill [abstract]          
Beginning balance     383,506 383,506 383,506
Additions     0   0
Impairment     0    
Ending balance 383,506   383,506   383,506
Accumulated amortization          
Reconciliation of changes in intangible assets other than goodwill [abstract]          
Beginning balance     (783,453) (641,684) (641,684)
Charge     (86,520)   (141,769)
Impairment     (621,434)    
Ending balance (248,539)   (248,539)   (783,453)
Accumulated amortization | Patents          
Reconciliation of changes in intangible assets other than goodwill [abstract]          
Beginning balance     (568,385) (473,662) (473,662)
Charge     (53,049)   (94,723)
Impairment     (621,434)    
Ending balance 0   0   (568,385)
Accumulated amortization | Software          
Reconciliation of changes in intangible assets other than goodwill [abstract]          
Beginning balance     (215,068) $ (168,022) (168,022)
Charge     (33,471)   (47,046)
Impairment     0    
Ending balance $ (248,539)   $ (248,539)   $ (215,068)