Note 7 - Property and Equipment (Tables)

3 Months Ended

Dec. 31, 2019

Notes Tables

Property, Plant and Equipment [Table Text Block]

	December 31,			September 30,
	2019			2019
Office furniture and equipment	$	1,573,439		$	1,498,395
Machinery and equipment		1,239,885			1,223,726
Leasehold improvements		2,019,794			2,019,794
Construction in progress		7,565			7,565
Property and equipment, gross		4,840,683			4,749,480
Accumulated depreciation		(2,618,435	)		(2,479,974	)
Property and equipment, net	$	2,222,248		$	2,269,506

Depreciation Expense [Member]

Notes Tables

Property, Plant and Equipment [Table Text Block]

	Three months ended December 31,
	2019		2018
Depreciation expense	$	133,975	$	124,460