Income Taxes: - Income Tax Expenses and Deferred Tax Assets (Details) - USD ($)	2 Months Ended	12 Months Ended
	Feb. 28, 2019	Feb. 28, 2019	Feb. 28, 2018
Income Taxes:
U.S. federal income tax rate (as a percent)	21.00%		21.00%
Actual income tax benefit
Expected benefit		$ (343,921)	$ (338,541)
Effect of expenses deducted directly by Dr. Burzynski		343,921	338,541
Other adjustments		(16,579)	(60,630)
Change in valuation allowance		16,579	60,630
Deferred tax assets:
Net operating loss carryforwards	$ 155,548	155,548	138,969
Alternative minimum tax credit carryforwards	42,603	42,603	42,603
Total deferred tax assets	198,151	198,151	181,572
Less valuation allowance	$ (198,151)	(198,151)	(181,572)
Historical earnings		$ 0	$ 0