Annual report pursuant to Section 13 and 15(d)

BALANCE SHEETS (PARENTHETICAL)

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BALANCE SHEETS (PARENTHETICAL) (USD $)
Feb. 29, 2012
Feb. 28, 2011
BALANCE SHEETS [Abstract]    
Accounts receivable, allowance for doubtful accounts $ 17,718 $ 12,128
Patents, accumulated amortization $ 107,640 $ 102,314
Common Stock, par value per share $ 0.01 $ 0.01
Common Stock, shares authorized 50,000,000 50,000,000
Common Stock, shares issued 37,471,667 36,577,667
Common Stock, shares outstanding 35,196,667 34,302,667
Treasury stock, shares 2,275,000 2,275,000