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Consolidated Statements of Income (Unaudited) (USD $)
 12 Months Ended
Feb. 28, 2013
Feb. 29, 2012
Income Statement [Abstract]    
Net Sales $ 9,542,354 $ 12,052,893
Cost of Goods Sold 5,010,093 5,886,667
Gross Profit 4,532,261 6,166,226
Operating Expenses    
Research and product development 894,481 1,128,729
Marketing and selling 2,214,750 2,398,367
General and administrative 1,153,862 1,249,209
Real estate operations expense 118,559 128,582
Total Operating Expenses 4,381,652 4,904,887
Operating Income 150,609 1,261,339
Interest Expense (113,931) (118,115)
Interest Income 5,166 6,049
Other Income (Expense) 16,001 (7,499)
Income Before Income Taxes 57,845 1,141,774
Income Tax Expense (Benefit) (74,406) (290,519)
Net Income $ 132,251 $ 1,432,293
Basic Earnings Per Share $ 0.01 $ 0.10
Diluted Earnings Per Share $ 0.01 $ 0.09
Weighted Average Shares - Basic 14,484,200 14,442,908
Weighted Average Shares - Diluted 14,484,200 15,407,144