Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($)	Aug. 31, 2016	May 31, 2016
Property, Plant and Equipment [Abstract]
Production machinery and equipment	$ 22,149,817	$ 18,616,603
Plant buildings and land	4,663,339	4,663,339
Leasehold improvements	245,568	198,568
Furniture and fixtures	168,005	168,005
Property and Equipment gross	27,226,729	23,646,515
Less: Accumulated depreciation	(11,599,772)	(11,081,196)
Net Property, Plant and Equipment	$ 15,626,957	$ 12,565,319