Note 4 - Property and Equipment, Net (Details) - Property and Equipment (USD $)	May 31, 2014	Feb. 28, 2014
Property, Plant and Equipment [Line Items]
Property, plant, and equpment	$ 20,054,377	$ 19,984,989
Less accumulated depreciation	11,720,183	11,496,791
Property and equipment, net	8,334,194	8,488,198
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equpment	513,618	513,618
Building [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equpment	4,775,466	4,775,466
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equpment	10,578,325	9,518,832
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equpment	1,293,647	1,324,846
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equpment	2,478,086	2,489,782
Transportation Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equpment	415,235	394,508
Asset under Construction [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equpment		$ 967,937