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Condensed Consolidated Statements of Income (Unaudited) (USD $)
 3 Months Ended
May 31, 2014
May 31, 2013
Income Statement [Abstract]    
Net Sales $ 2,420,699 $ 2,374,394
Cost of Goods Sold 1,272,733 1,232,979
Gross Profit 1,147,966 1,141,415
Operating Expenses    
Research and product development costs 235,848 225,594
Marketing and selling expenses 543,847 489,010
General and administrative costs 241,585 269,090
Rental operations expense 39,159 34,482
Total Operating Expenses 1,060,439 1,018,176
Operating Income 87,527 123,239
Interest Expense (16,035) (27,775)
Other (expense) income 10,299 (1,528)
Income Before Income Taxes 81,791 93,936
Income Tax Expense 15,149 20,188
Net Income $ 66,642 $ 73,748
Basic Earnings Per Share $ 0 $ 0.01
Diluted Earnings Per Share $ 0 $ 0.01
Weighted Average Shares - Basic 14,709,773 14,503,010
Weighted Average Shares - Diluted 14,836,943 14,559,441