Inventories (Details) - USD ($)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Inventory Disclosure [Abstract]
Equipment and parts	$ 2,675,674	$ 2,868,636
Reserve	(48,657)	(59,726)
Inventories, net	2,627,017	2,808,910
Inventory written-down	$ 6,900	$ 14,700