Accrued Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Feb. 28, 2015	Feb. 28, 2014	Feb. 28, 2013
Schedule of Accrued Liabilities [Line Items]
Accrued compensation and benefits	$ 203us-gaap_AccruedEmployeeBenefitsCurrent	$ 313us-gaap_AccruedEmployeeBenefitsCurrent
Accrued customer deposits	107us-gaap_CustomerDepositsCurrent
Accrued warranty	23	45	43
Accrued professional fees	149us-gaap_AccruedProfessionalFeesCurrent	136us-gaap_AccruedProfessionalFeesCurrent
Accrued other	121us-gaap_OtherAccruedLiabilitiesCurrent	431us-gaap_OtherAccruedLiabilitiesCurrent
Accrued liabilities	$ 603us-gaap_AccruedLiabilitiesCurrent	$ 925us-gaap_AccruedLiabilitiesCurrent

Carrying value as of the balance sheet date of obligations, excluding pension and other postretirement benefits, incurred through that date and payable for perquisites provided to employees pertaining to services received from them. 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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Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. 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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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. 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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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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