Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2015	Nov. 30, 2014	Feb. 28, 2015
Income Taxes [Line Items]
Effective Tax Rate			0.00%	(3.00%)
Net income (loss)	$ (2,139)	$ (2,819)	$ (5,074)	$ (2,531)
Tax benefit	800
Income tax expense/(benefit)	0	$ (43)		$ (80)
Valuation allowance, Deferred tax assets	$ 6,400		$ 6,400		$ 4,300