Income Taxes Additional Information (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Aug. 31, 2016	Aug. 31, 2015	Feb. 28, 2017
Deferred Tax Provision [Line Items]
Provision for deferred income taxes	$ 1,267	$ 1,683
Effective Income Tax Rate	31.00%	20.00%
Scenario, Forecast [Member]
Deferred Tax Provision [Line Items]
Provision for deferred income taxes			$ 2,500