Inventories (Tables)

3 Months Ended

Sep. 30, 2017

Inventory Disclosure [Abstract]

Schedule of inventories

Inventories are summarized as follows: 

	September 30,		June 30,
	2017		2017
Raw material	$	2,802,483	$	2,409,148
Work-in-process		1,188,942		741,994
Finished goods		2,081,249		3,267,232
		6,072,674		6,418,374
Less valuation reserve		866,649		1,425,940
	$	5,206,025	$	4,992,434