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Condensed Consolidated Statements of Income - USD ($)
 3 Months Ended
May 31, 2022
May 31, 2021
Income Statement [Abstract]    
Net Sales $ 4,051,535 $ 3,644,468
Cost of Goods Sold 1,944,522 1,820,303
Gross Profit 2,107,013 1,824,165
Operating Expenses    
Research and product development costs 516,633 413,816
Marketing and selling expenses 789,862 764,642
General and administrative costs 419,993 302,799
Total Operating Expenses 1,726,488 1,481,257
Operating Income 380,525 342,908
Interest and Dividend Income 7,415 3,360
Net unrealized loss on marketable securities (11,853)
Paycheck Protection Program Loan Forgiveness 1,005,372
Income Before Income Taxes 376,087 1,351,640
Income Tax Expense 70,451 84,888
Net Income $ 305,636 $ 1,266,752
Basic Earnings Per Share $ 0.02 $ 0.08
Diluted Earnings Per Share $ 0.02 $ 0.08
Weighted Average Shares - Basic 15,729,175 15,494,421
Weighted Average Shares - Diluted 15,752,424 15,663,772