PROPERTY AND EQUIPMENT - Summary of property and equipment at cost (Details) - USD ($)	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 32,436,932	$ 36,186,979
Less accumulated depreciation	(19,568,124)	(15,048,399)
Property and equipment, net	$ 12,868,808	21,138,580
Computer equipment purchased software
Property, Plant and Equipment [Line Items]
Useful lives	3-7 years
Property, plant and equipment, gross	$ 4,669,485	4,581,001
Less accumulated depreciation	(4,016,635)	(3,612,551)
Property and equipment, net	$ 652,850	968,450
Property and equipment used for rental program
Property, Plant and Equipment [Line Items]
Useful lives	5 years
Property, plant and equipment, gross	$ 26,469,057	30,348,918
Less accumulated depreciation	(14,475,816)	(10,524,701)
Property and equipment, net	$ 11,993,241	19,824,217
Furniture and equipment
Property, Plant and Equipment [Line Items]
Useful lives	3-7 years
Property, plant and equipment, gross	$ 723,047	681,717
Less accumulated depreciation	(571,933)	(498,995)
Property and equipment, net	$ 151,114	182,722
Leasehold improvements
Property, Plant and Equipment [Line Items]
Useful lives	Lesser of life or lease term
Property, plant and equipment, gross	$ 575,343	575,343
Less accumulated depreciation	(503,740)	(412,152)
Property and equipment, net	$ 71,603	$ 163,191