NATURE OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES - Estimated useful lives (Details)	12 Months Ended
	Jun. 30, 2016
Buildings
Property, Plant and Equipment [Line Items]
Estimated useful lives	39 years
Machinery and equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 - 7 years
Trucks and autos
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Office equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 - 7 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Estimated useful lives	Lesser of estimated useful life or the lease term