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Note 3 - Inventories: Schedule of Inventory, Current (Tables)
9 Months Ended
Jan. 31, 2018
Tables/Schedules  
Schedule of Inventory, Current   

 

January 31, 2018

(unaudited)

April 30, 2017

Raw materials

  $     7,406,466 

   $  4,087,036 

Work in process

         1,740,132 

        1,802,782 

Finished goods

         3,138,089 

       3,089,703 

Inventories, gross

       12,284,687 

       8,979,521 

Less: reserve for obsolete inventory

           (178,776)

         (163,048)

Inventories, net

  $   12,105,911 

   $  8,816,473