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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($)
 3 Months Ended
May 31, 2025
May 31, 2024
Income Statement [Abstract]    
Net Sales $ 5,132,773 $ 5,031,038
Cost of Goods Sold 2,468,259 2,576,551
Gross Profit 2,664,514 2,454,487
Operating Expenses    
Research and product development costs 668,470 731,430
Marketing and selling expenses 858,151 897,190
General and administrative costs 654,525 587,571
Total Operating Expenses 2,181,146 2,216,191
Operating Income 483,368 238,296
Interest and Dividend Income 142,098 142,654
Net unrealized (loss)/gain on marketable securities (21,923) 10,361
Income Before Income Taxes 603,543 391,311
Income Tax Expense 118,558 60,474
Net Income $ 484,985 $ 330,837
Basic Earnings Per Share $ 0.03 $ 0.02
Diluted Earnings Per Share $ 0.03 $ 0.02
Weighted Average Shares - Basic 15,733,955 15,750,880
Weighted Average Shares - Diluted 15,748,556 15,774,376