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Note 4 - Inventories: Schedule of Inventory (Details) - USD ($)
Sep. 30, 2017
Mar. 31, 2017
Details    
Raw Materials $ 382,868 $ 1,276,254
Packaging materials 285,302 476,803
Work-in-process 538,646 1,373,919
Finished goods 1,203,956 2,356,064
Inventories $ 2,410,772 $ 5,483,040