BALANCE SHEETS (Parenthetical) (USD $)	Feb. 29, 2012	Feb. 28, 2011
Current assets:
Allowance for doubtful accounts	$ 60,000	$ 59,070
Allowance for obsolete inventory	$ 1,563,066	$ 2,106,391
Stockholders' deficit :
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	150,000,000	75,000,000
Common stock, shares issued (in shares)	71,942,669	60,720,956
Common stock, shares outstanding (in shares)	71,942,669	60,720,956