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Accrued Expenses (Tables) - Accrued expenses (Details) (USD $)
Feb. 28, 2014
Feb. 28, 2013
Payables and Accruals [Abstract]    
Accrued compensation $ 201,676 $ 121,275
Estimated warranty costs 30,900 27,750
Accrued commissions 156,964 232,920
Professional fees 44,692 33,000
Other accrued expenses 130,889 62,082
Total accrued expenses $ 565,121 $ 477,027