Note 7 - Property, Plant and Equipment: Property, Plant and Equipment (Details) (USD $)	Feb. 28, 2014	May 31, 2013	Feb. 28, 2013
Property, Plant and Equipment, Gross		$ 6,002,712	$ 6,117,263
Less: Accumulated depreciation		(4,102,151)	(4,648,267)
Property, Plant and Equipment, Net, Total	1,468,996	1,900,561	1,468,996
Computer Equipment
Property, Plant and Equipment, Gross		587,392	575,356
Technology Equipment
Property, Plant and Equipment, Gross		5,048,888	5,172,229
Furniture and Fixtures
Property, Plant and Equipment, Gross		205,308	207,160
Vehicles
Property, Plant and Equipment, Gross		125,871	127,034
Leasehold Improvements
Property, Plant and Equipment, Gross		$ 35,253	$ 35,484