Provision for Income Taxes Differs from Amount Computed by Applying Federal Statutory Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
	Feb. 29, 2016	Feb. 28, 2015
Income Taxes [Line Items]
Statutory U.S. federal income tax rate	$ (2,269)	$ (1,327)
State income taxes, net of federal benefit	(196)	(114)
Research and experimentation credits		(15)
Valuation allowance	2,483	2,739
Non-deductible expenses		19
Other	$ (18)	(22)
Taxes at effective income tax rate		$ 1,280