v3.25.2
2. Significant Accounting Policies - Income/(loss) from operations by segment (Details) - USD ($)
 3 Months Ended
May 31, 2025
May 31, 2024
Revenue $ 2,134,026 $ 1,251,878
Cost of goods sold (1,208,695) (651,599)
Gross profit 925,331 600,279
Selling expenses (21,773) (21,008)
Depreciation expense (7,506) (17,916)
General and administrative expenses (569,581) (277,206)
Research and development expenses (49,014) (14,981)
Income from operations 277,457 269,168
Other income/(expenditure) (163,673) (181,964)
Net income/(loss) 113,784 87,204
Inside The United States [Member]    
Revenue 150,063 135,773
Cost of goods sold (47,683) (13,477)
Gross profit 102,195 122,296
Selling expenses (5,355) (11,939)
Depreciation expense
General and administrative expenses (385,842) (132,397)
Research and development expenses
Income from operations (289,002) (22,040)
Outside The United States [Member]    
Revenue 1,983,963 1,116,105
Cost of goods sold (1,160,827) (638,122)
Gross profit 823,136 477,983
Selling expenses (16,418) (9,069)
Depreciation expense (7,506) (17,916)
General and administrative expenses (183,739) (144,809)
Research and development expenses (49,014) (14,981)
Income from operations $ 566,459 $ 291,208