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Note 7 - Inventories - Schedule of Inventory (Details) - USD ($)
Jun. 30, 2018
Sep. 30, 2017
Raw materials $ 5,119,720 $ 3,784,935
Finished goods 456,899 1,742,960
Work in progress 338,506 147,871
Inventories, gross 5,915,125 5,675,766
Reserve for obsolescence (510,507) (418,532)
Inventories, net $ 5,404,618 $ 5,257,234