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Consolidated Statements of Operations and Comprehensive Income - USD ($)	12 Months Ended
	Feb. 29, 2020	Feb. 28, 2019
Income Statement [Abstract]
Net Sales	$ 15,354,619	$ 11,609,599
Cost of Goods Sold	8,041,378	6,361,353
Gross Profit	7,313,241	5,248,246
Operating Expenses
Research and product development	1,427,543	1,324,766
Marketing and selling	3,403,133	2,686,382
General and administrative	1,367,073	1,154,611
Total Operating Expenses	6,197,749	5,165,759
Operating Income (Loss)	1,115,492	82,487
Other Income (Expense):
Interest Expense	(33,038)	(39,977)
Interest and Dividend Income	101,592	136,677
Realized gain on sale of marketable securities		73,699
Net unrealized loss on marketable securities		(100,184)
Other Income	29,401	28,732
Income Before Income Taxes	1,213,447	181,434
Income Tax (Benefit) Expense	106,005	19,847
Net Income	$ 1,107,442	$ 161,587
Basic Earnings Per Share	$ 0.07	$ 0.01
Diluted Earnings Per Share	$ 0.07	$ 0.01
Weighted Average Shares - Basic	15,302,367	15,107,778
Weighted Average Shares - Diluted	15,359,088	15,218,913

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