INCOME TAXES (Details) - Schedule of Deferred Tax Assets and Liabilities - USD ($)	Feb. 28, 2021	Feb. 29, 2020
Deferred tax assets:
Allowance for doubtful accounts	$ 89,600	$ 64,100
Inventory overhead capitalization	127,700	69,200
Inventory valuation allowance	138,700	70,100
Inventory valuation allowance – noncurrent	56,400	56,700
Allowance for sales returns	27,200	27,200
Accruals	754,200	363,900
Total deferred tax assets	1,193,800	651,200
Deferred tax liabilities:
Property, plant and equipment	(1,283,700)	(1,644,500)
Total deferred tax liabilities	(1,283,700)	(1,644,500)
Net deferred income tax liabilities	$ (89,900)	$ (993,300)