BALANCE SHEETS (Parenthetical) (USD $)	Feb. 28, 2013	Feb. 29, 2012
Current assets:
Allowance for doubtful accounts	$ 50,000	$ 60,000
Allowance for obsolete inventory	$ 1,341,650	$ 1,563,066
Stockholders' deficit :
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	150,000,000	150,000,000
Common stock, shares issued (in shares)	76,604,573	71,942,669
Common stock, shares outstanding (in shares)	76,604,573	71,942,669