Note 4 - Property, Plant and Equipment (Tables)

12 Months Ended

Jun. 30, 2018

Notes Tables

Property, Plant and Equipment [Table Text Block]

							Estimated
	June 30,						Useful Life
	2018			2017			In Years
Machinery and equipment	$	5,416,686		$	5,397,737		3	-	6
Software		393,383			392,913		5	-	7
Furniture and fixtures		105,662			105,043		5	-	7
Leasehold improvements		69,268			69,268			(1)
		5,984,999			5,964,961
Less: Accumulated depreciation and amortization		(4,563,902	)		(3,761,418	)
Property and equipment, net	$	1,421,097		$	2,203,543