Income Taxes: (Tables)

12 Months Ended

Feb. 28, 2013

Income Taxes:

Schedule of actual provision for income tax that differs from the amounts computed by applying the U.S. federal income tax rate to the pretax loss

	2013			2012
Expected benefit	$	(2,209,594	)	$	(2,433,605	)
Effect of expenses deducted directly by Dr. Burzynski	2,209,594			2,433,605
Other adjustments	(51,160		)	165,068
Change in valuation allowance	51,160			(165,068		)
Income tax expense	$	—		$	—

Schedule of components of the Company's deferred income tax assets

	2013			2012
Deferred tax assets:
Net operating loss carryforwards	$	211,858		$	159,410
Excess book (tax) depreciation	(616		)	(641		)
Accrued expenses	5,925			7,238
Alternative minimum tax credit carryforwards	42,603			42,603
Total deferred tax assets	259,770			208,610
Less valuation allowance	(259,770		)	(208,610		)
Net deferred tax assets	$	—		$	—

Schedule of expiration of net operating loss carryforwards

Year ending
February 28, or 29,
2020	$	49,976
2021	$	24,116
2022	$	67,855
2023	$	73,401
2024	$	69,394
2025	$	13,475
2026	$	46,972
2027	$	31,220
2028	$	7,737
2029	$	31,868
2030	$	—
2031	$	—
2032	$	—
2033	$	207,097