Note 6 (Details) - USD ($)
 3 Months Ended 6 Months Ended
Aug. 31, 2015
Aug. 31, 2014
Aug. 31, 2015
Aug. 31, 2014
Disclosure Text Block [Abstract]        
Shipping, Handling and Transportation Costs $ 1,547,700 $ 799,200 $ 2,605,100 $ 1,539,900