Inventories (Tables)

6 Months Ended

Dec. 31, 2018

Inventory, Net [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories are comprised as follows:

	December 31, 2018			June 30, 2018
Work-in progress	$	507,437		$	388,252
Component parts		7,201,175			6,775,870
Finished goods		2,048,274			2,285,836
Reserve for obsolete and excess
inventories		(1,619,417	)		(1,619,417	)
	$	8,137,469		$	7,830,541