PRODUCT WARRANTY OBLIGATIONS (Tables)

12 Months Ended

Jun. 30, 2018

Standard Product Warranty Disclosure [Abstract]

Schedule of Product Warranty Liability

Changes to the product warranty obligations for the years ended June 30, 2018 and 2017 were as follows:

Year Ended June 30,	Balance, beginning of year		Provision charged to expense	Warranty expenses incurred		Balance, end of year
2018	$	384,959	180,753	(189,612	)	$	376,100
2017	$	483,530	159,990	(258,561	)	$	384,959