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PRODUCT WARRANTY OBLIGATIONS (Details) - USD ($)
12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Movement in Standard Product Warranty Accrual [Roll Forward]    
Balance, beginning of year $ 531,891 $ 722,624
Provision charged to expense 214,827 103,925
Warranty expenses incurred (263,188) (294,658)
Balance, end of year $ 483,530 $ 531,891