Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	May. 31, 2015	May. 31, 2014	Feb. 28, 2015
Effective Income Tax Rate, Continuing Operations	(62.90%)	12.20%	36.50%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	0.00%
Income tax expense (benefit)	$ 276	$ 68
Unrecognized Tax Benefits, Period Increase (Decrease)	$ 436