Note 3 - Property and Equipment, Net (Details) - Property and Equipment (USD $)	Feb. 28, 2014	Feb. 28, 2013
Property, Plant and Equipment [Line Items]
Property, plant, and equpment	$ 19,984,989	$ 17,489,756
Less accumulated depreciation	11,496,791	10,712,613
Property and equipment, net	8,488,198	6,777,143
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	4,764,005
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equpment	9,518,832	8,864,126
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equpment	1,324,846	1,024,261
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equpment	2,489,782	1,930,991
Transportation Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equpment	394,508	392,755
Asset under Construction [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equpment	$ 967,937