Income Taxes (Details 2) - USD ($)	Feb. 28, 2015	Feb. 28, 2014
Deferred tax asset
Primarily relating to net operating loss carry-forwards, but also reserves for inventory and accounts receivable, stock-based compensation and other	$ 120,000,000	$ 116,000
Valuation allowance	(120,000,000)	(116,000,000)
Net deferred tax asset