Income Taxes: - Income Tax Expenses and Deferred Tax Assets (Details) - USD ($)	12 Months Ended
	Feb. 28, 2025	Feb. 29, 2024
Income Taxes:
U.S. federal income tax rate (as a percent)	21.00%	21.00%
Actual income tax benefit
Expected expense (benefit)	$ (291,103)	$ (280,441)
Taxed directly to Dr. Burzynski	291,103	280,441
Nondeductible expenses and other adjustments	3,468	2,394
Change in valuation allowance	(3,468)	(2,394)
State taxes	0	0
Provision for income tax	0	0
Deferred tax assets:
Net operating loss carryforwards	125,096	121,628
Alternative minimum tax credit carryforwards	42,603	42,603
Total deferred tax assets	167,699	164,231
Valuation allowance	167,699	164,231
Net deferred tax assets	0	0
Historical earnings	$ 0	$ 0