Note 6 - Property, Plant and Equipment: Property, Plant and Equipment (Details) (USD $)	Nov. 30, 2013	May 31, 2013
Property, Plant and Equipment, Gross	$ 6,075,714	$ 6,002,712
Less: Accumulated depreciation	(4,477,242)	(4,102,151)
Property, plant and equipment, net	1,598,472	1,900,561
Computer Equipment
Property, Plant and Equipment, Gross	574,457	587,392
Technology Equipment
Property, Plant and Equipment, Gross	5,131,649	5,048,888
Furniture and Fixtures
Property, Plant and Equipment, Gross	207,116	205,308
Vehicles
Property, Plant and Equipment, Gross	127,003	125,871
Leasehold Improvements
Property, Plant and Equipment, Gross	$ 35,489	$ 35,253