Note 6 - Property and Equipment (Tables)

12 Months Ended

Sep. 30, 2016

Depreciation Expense [Member]

Notes Tables

Property, Plant and Equipment [Table Text Block]

	Year Ended September 30,
	2016		2015
Depreciation expense	$	160,941	$	232,387

Property, Plant and Equipment [Table Text Block]

	September 30,
	2016			2015
Machinery and equipment	$	957,829		$	940,289
Office furniture and equipment		976,856			877,011
Leasehold improvements		71,738			67,913
Property and equipment, gross		2,006,423			1,885,213
Accumulated depreciation		(1,533,079	)		(1,413,250	)
Property and equipment, net	$	473,344		$	471,963