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Condensed Consolidated Statements of Income - USD ($)
 3 Months Ended
May 31, 2021
May 31, 2020
Income Statement [Abstract]    
Net Sales $ 3,644,468 $ 3,428,544
Cost of Goods Sold 1,820,303 1,867,811
        Gross Profit 1,824,165 1,560,733
Operating Expenses    
    Research and product development costs 413,816 411,424
    Marketing and selling expenses 764,642 706,717
    General and administrative costs 302,799 258,402
            Total Operating Expenses 1,481,257 1,376,543
Operating Income 342,908 184,190
Interest Expense (8,417)
Interest and Dividend Income 3,360 22,646
Other Income 11,435
Paycheck Protection Program Loan Forgiveness 1,005,372
Income Before Income Taxes 1,351,640 209,854
Income Tax Expense 84,888 41,926
Net Income $ 1,266,752 $ 167,928
Basic Earnings Per Share $ 0.08 $ 0.01
Diluted Earnings Per Share $ 0.08 $ 0.01
Weighted Average Shares - Basic 15,494,421 15,397,779
Weighted Average Shares - Diluted 15,663,772 15,436,758