Description of Business and Summary of Significant Accounting Policies Investment Securities Notes (Details) $ in Thousands	3 Months Ended	12 Months Ended
	May. 31, 2015 USD ($)	Feb. 29, 2016 USD ($) Rate	Feb. 28, 2015 USD ($)	Feb. 28, 2014 USD ($)
Foreign Currency Transaction Gain (Loss), before Tax		$ 110	$ (6,504)	$ (1,079)
Foreign Currency Exchange Rate, Translation				6.3
Cost Method Investments		6,271
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities		0	0	$ 0
Cost Method Investment, Additional Investment In		0	0	0
Cost Method Investment, Return of Investment			250
Proceeds from Sale, Maturity and Collection of Investments	$ 251
Eye See 360 [Member]
Cost Method Investments		$ 4,453	3,000
Cost Method Investment, Ownership Percentage | Rate		4.60%
Rx Networks [Member]
Cost Method Investments		$ 1,819	1,887
Cost Method Investment, Ownership Percentage		12.50%
Eyelock [Member]
Cost Method Investments			3,000
VENEZUELA
Foreign Currency Transaction Gain (Loss), before Tax		$ (2)	$ (7,104)	$ 177
Available-for-sale Securities [Member]
Equity Method Investment, Ownership Percentage		20.00%