v3.26.1
Intangible assets (Details) - USD ($)
 9 Months Ended 12 Months Ended
May 31, 2026
Aug. 31, 2025
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning $ 481,197  
Balance at the end 487,829 $ 481,197
Intellectual property    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning 25,057  
Impairment loss   380,457
Balance at the end 21,487 25,057
Software    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning 27,910  
Balance at the end 20,820 27,910
Patents    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning 135,525  
Balance at the end 216,624 135,525
Brand names [member]    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning 279,572  
Balance at the end 227,414 279,572
Brand names [member] | Nautical Ventures Group Inc.    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Business acquisition   270,448
Backlog    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning 9,417  
Balance at the end   9,417
Website    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning 3,716  
Balance at the end 1,484 3,716
Cost    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning 1,411,545 1,050,339
Additions 95,644 99,407
Business acquisition   270,448
Currency translation (770) (8,649)
Balance at the end 1,506,419 1,411,545
Cost | Intellectual property    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning 764,683 772,225
Currency translation (101) (7,542)
Balance at the end 764,582 764,683
Cost | Software    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning 76,451 76,181
Currency translation (114) 270
Balance at the end 76,337 76,451
Cost | Patents    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning 144,936 46,932
Additions 95,644 99,407
Currency translation (550) (1,403)
Balance at the end 240,030 144,936
Cost | Brand names [member]    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning 347,809 77,335
Business acquisition   270,448
Currency translation (5) 26
Balance at the end 347,804 347,809
Cost | Backlog    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning 62,794 62,794
Balance at the end 62,794 62,794
Cost | Website    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning 14,872 14,872
Balance at the end 14,872 14,872
Accumulated depreciation    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning (930,348) (406,566)
Depreciation 88,242 143,325
Impairment loss   (380,457)
Balance at the end (1,018,590) (930,348)
Accumulated depreciation | Intellectual property    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning (739,626) (276,363)
Depreciation 3,469 82,806
Impairment loss   (380,457)
Balance at the end (743,095) (739,626)
Accumulated depreciation | Software    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning (48,541) (38,204)
Depreciation 6,976 10,337
Balance at the end (55,517) (48,541)
Accumulated depreciation | Patents    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning (9,411) (947)
Depreciation 13,995 8,464
Balance at the end (23,406) (9,411)
Accumulated depreciation | Brand names [member]    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning (68,237) (42,055)
Depreciation 52,153 26,182
Balance at the end (120,390) (68,237)
Accumulated depreciation | Backlog    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning (53,377) (40,817)
Depreciation 9,417 12,560
Balance at the end (62,794) (53,377)
Accumulated depreciation | Website    
Reconciliation of changes in intangible assets other than goodwill [abstract]    
Balance at the beginning (11,156) (8,180)
Depreciation 2,232 2,976
Balance at the end $ (13,388) $ (11,156)