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Note 5 - Inventories - Schedule of Inventory (Details) - USD ($)
Jun. 30, 2017
Sep. 30, 2016
Raw materials $ 4,783,309 $ 4,393,928
Finished goods 858,780 775,628
Work in process 462,303 174,485
Inventories, gross 6,104,392 5,344,041
Reserve for obsolescence (393,360) (580,132)
Inventories, net $ 5,711,032 $ 4,763,909