Note 8 - Property, Plant and Equipment: Property, Plant and Equipment (Details) - USD ($)	May. 31, 2015	May. 31, 2014
At cost:
Property, Plant and Equipment, Gross	$ 8,380,876	$ 5,623,158
Less: Accumulated depreciation	(4,577,472)	(4,171,264)
Property, Plant and Equipment, Net, Total	3,803,404	1,451,894
Computer Equipment
At cost:
Property, Plant and Equipment, Gross	147,213	102,023
Technology Equipment
At cost:
Property, Plant and Equipment, Gross	5,473,624	5,297,796
Furniture and Fixtures
At cost:
Property, Plant and Equipment, Gross	57,976	61,887
Vehicles
At cost:
Property, Plant and Equipment, Gross	167,175	126,133
Leasehold Improvements
At cost:
Property, Plant and Equipment, Gross	32,556	35,319
Construction in progress
At cost:
Property, Plant and Equipment, Gross	$ 2,502,332	$ 0