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CONDENSED BALANCE SHEETS (UNAUDITED) (Parentheticals) (USD $)
May 31, 2012
Feb. 29, 2012
Allowance for doubtful accounts (in Dollars) $ 529,300 $ 556,300
Common Stock, par value (in Dollars per share) $ 0.20 $ 0.20
Common Stock, shares authorized 8,000,000 8,000,000
Common Stock, shares issued 6,041,040 6,041,040
Common Stock, shares outstanding 3,916,766 3,913,183