Income Taxes: - Income Tax Expenses and Deferred Tax Assets (Details) - USD ($)	12 Months Ended
	Feb. 28, 2022	Feb. 28, 2021
INCOME TAXES
U.S. federal income tax rate (as a percent)	21.00%	21.00%
Actual income tax benefit
Expected expense (benefit)	$ 205,098	$ 252,840
Taxes directly to Dr. Burzynski	205,098	252,840
Nondeductible expenses and other adjustments	(9,880)	1,884
Change in valuation allowance	9,880	(1,884)
Provision for income tax	0	0
Deferred tax assets:
Net operating loss carryforwards	116,099	125,979
Alternative minimum tax credit carryforwards	42,603	42,603
Total deferred tax assets	158,702	168,582
Less valuation allowance	(158,702)	(168,582)
Net deferred tax assets	0	0
Historical earnings	$ 0	$ 0