Note 4 - Property and Equipment, Net (Details) - Property and Equipment (USD $)	May 31, 2013	Feb. 28, 2013
Property and Equipment [Abstract]
Land	$ 513,618	$ 513,618
Building	4,777,476	4,764,005
Machinery and equipment	8,923,060	8,864,126
Furniture and fixtures	1,033,254	1,024,261
Leasehold improvements	1,930,991	1,930,991
Transportation equipment	392,755	392,755
	17,571,154	17,489,756
Less accumulated depreciation	10,942,464	10,712,613
Property and equipment net	$ 6,628,690	$ 6,777,143