Note 6 - Inventories (Tables)

12 Months Ended

Sep. 30, 2019

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	September 30,
	2019			2018
Raw materials	$	5,060,331		$	4,487,273
Finished goods		998,607			1,768,544
Work in process		306,809			875,417
Inventories, gross		6,365,747			7,131,234
Reserve for obsolescence		(530,584	)		(397,051	)
Inventories, net	$	5,835,163		$	6,734,183