XML 31 R21.htm IDEA: XBRL DOCUMENT v3.20.2
Note 6 - Inventories (Tables)
9 Months Ended
Jun. 30, 2020
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

June 30, 2020

   

September 30, 2019

 

Raw materials

  $ 11,340,314     $ 7,115,298  

Work-in-progress

    1,384,876       540,962  

Finished goods

    2,156,763       1,356,720  

Inventories, net

  $ 14,881,952     $ 9,012,980