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Income taxes - income tax reconciliation (Details) - USD ($)	12 Months Ended
	Feb. 28, 2025	Feb. 29, 2024
Income Tax Disclosure [Abstract]
Expected federal income tax	$ 322,159	$ 366,362
State tax, net of federal	30,884	52,510
Research and development tax credits	(151,529)	(161,525)
Non-Deductible equity based compensation	52,007	42,751
Other	7,157	3,019
Income tax expense	$ 260,678	$ 303,117

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