Income Taxes: - Income Tax Expenses and Deferred Tax Assets (Details) - USD ($)	2 Months Ended	12 Months Ended
	Feb. 29, 2020	Feb. 29, 2020	Feb. 28, 2019
Income Taxes:
U.S. federal income tax rate (as a percent)	21.00%		21.00%
Actual income tax benefit
Expected benefit		$ (343,241)	$ (343,921)
Effect of expenses deducted directly by Dr. Burzynski		343,241	343,921
Other adjustments		7,153	(16,579)
Change in valuation allowance		(7,153)	16,579
Deferred tax assets:
Net operating loss carryforwards	$ 148,395	148,395	155,548
Alternative minimum tax credit carryforwards	42,603	42,603	42,603
Total deferred tax assets	190,998	190,998	198,151
Less valuation allowance	$ (190,998)	(190,998)	(198,151)
Historical earnings		$ 0	$ 0