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Note 2 - INVENTORIES (Details) - Schedule of Inventory, Noncurrent - USD ($)
May 31, 2019
Feb. 28, 2019
Inventory Current [Member]    
Current:    
Book inventory $ 33,646,400 $ 33,494,200
Inventory valuation allowance (138,500) (48,600)
Inventories net 33,507,900 33,445,600
Inventory, Noncurrent [Member]    
Current:    
Book inventory 892,000 904,400
Inventory valuation allowance (336,000) (329,400)
Inventories net $ 556,000 $ 575,000