Provision for Income Taxes Differs from Amount Computed by Applying Federal Statutory Rate (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Feb. 28, 2014	Feb. 28, 2013
Income Taxes [Line Items]
Statutory U.S. federal income tax rate	$ (2,022)	$ (1,331)
State income taxes, net of federal benefit	(69)	(6)
Research and experimentation credits	(50)	(82)
Valuation allowance	1,556
Non-deductible expenses	12	19
Domestic production activities deduction		(38)
Other	87	5
Taxes at effective income tax rate	$ (486)	$ (1,433)