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Consolidated Statements of Operations and Comprehensive Income - USD ($)
 12 Months Ended
Feb. 28, 2021
Feb. 29, 2020
Income Statement [Abstract]    
Net Sales $ 14,832,877 $ 15,354,619
Cost of Goods Sold 7,835,837 8,041,378
Gross Profit 6,997,040 7,313,241
Operating Expenses    
Research and product development 1,644,598 1,427,543
Marketing and selling 2,789,880 3,403,133
General and administrative 1,222,101 1,367,073
Total Operating Expenses 5,656,579 6,197,749
Operating Income (Loss) 1,340,461 1,115,492
Other Income (Expense):    
Interest Expense (39,843) (33,038)
Interest and Dividend Income 22,558 101,592
Other Income 24,691 29,401
Income Before Income Taxes 1,347,867 1,213,447
Income Tax Expense 227,225 106,005
Net Income $ 1,120,642 $ 1,107,442
Basic Earnings Per Share $ 0.07 $ 0.07
Diluted Earnings Per Share $ 0.07 $ 0.07
Weighted Average Shares - Basic 15,428,411 15,302,367
Weighted Average Shares - Diluted 15,672,253 15,359,088