PROPERTY AND EQUIPMENT - Summary of property and equipment at cost (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2015	Jun. 30, 2015
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Cost	$ 32,718	$ 32,437
Less accumulated depreciation	(20,828)	(19,568)
Property and equipment, Net	$ 11,890	$ 12,869
Computer equipment and purchased software
Property, Plant and Equipment [Line Items]
Useful lives	3-7 years	3-7 years
Property, plant and equipment, Cost	$ 4,740	$ 4,670
Less accumulated depreciation	(4,102)	(4,017)
Property and equipment, Net	$ 638	$ 653
Property and equipment used for rental program
Property, Plant and Equipment [Line Items]
Useful lives	5 years	5 years
Property, plant and equipment, Cost	$ 26,667	$ 26,469
Less accumulated depreciation	(15,616)	(14,476)
Property and equipment, Net	$ 11,051	$ 11,993
Furniture and equipment
Property, Plant and Equipment [Line Items]
Useful lives	3-7 years	3-7 years
Property, plant and equipment, Cost	$ 736	$ 723
Less accumulated depreciation	(585)	(572)
Property and equipment, Net	$ 151	$ 151
Leasehold improvements
Property, Plant and Equipment [Line Items]
Useful lives	life or lease term	life or lease term
Property, plant and equipment, Cost	$ 575	$ 575
Less accumulated depreciation	(525)	(503)
Property and equipment, Net	$ 50	$ 72