3. PROPERTY, PLANT AND EQUIPMENT (Details 1) (USD $)	May 31, 2014	May 31, 2013
Property, Plant and Equipment [Abstract]
Production machinery and equipment	$ 12,826,529	$ 10,717,493
Building and land	4,663,339	4,663,339
Leasehold improvements	203,034	203,034
Furniture and fixtures	210,196	171,093
Gross Property, Plant and Equipment	17,903,098	15,754,959
Less: Accumulated depreciation	(9,126,961)	(8,710,820)
Net Property, Plant and Equipment	$ 8,776,137	$ 7,044,139