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Accrued Expenses (Tables) - Accrued expenses (Details) (USD $)	Feb. 28, 2013	Feb. 29, 2012
Payables and Accruals [Abstract]
Accrued compensation	$ 121,275	$ 198,056
Estimated warranty costs	27,750	36,000
Accrued commissions	232,920	181,682
Professional fees	33,000	30,172
Other accrued expenses	62,082	83,822
Total accrued expenses	$ 477,027	$ 529,732

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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