PROPERTY AND EQUIPMENT, net - Summary of Property And Equipment at Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 39,838	$ 33,603
Less accumulated depreciation	(27,727)	(23,838)
Property and equipment, net	$ 12,111	$ 9,765
Computer equipment and purchased software
Property, Plant and Equipment [Line Items]
Useful lives	3-7 years	3-7 years
Property, plant and equipment, gross	$ 5,951	$ 5,369
Less accumulated depreciation	(4,800)	(4,365)
Property and equipment, net	$ 1,151	$ 1,004
Internal-use software
Property, Plant and Equipment [Line Items]
Useful lives	3-5 years	3-5 years
Property, plant and equipment, gross	$ 1,089	$ 137
Less accumulated depreciation	(112)	(9)
Property and equipment, net	$ 977	$ 128
Property and equipment used for rental program
Property, Plant and Equipment [Line Items]
Useful lives	5 years	5 years
Property, plant and equipment, gross	$ 31,406	$ 26,648
Less accumulated depreciation	(21,948)	(18,246)
Property and equipment, net	$ 9,458	$ 8,402
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Useful lives	3-7 years	3-7 years
Property, plant and equipment, gross	$ 1,174	$ 874
Less accumulated depreciation	(774)	(654)
Property and equipment, net	$ 400	$ 220
Leasehold improvements
Property, Plant and Equipment [Line Items]
Useful lives	Lesser of life or lease term	Lesser of life or lease term
Property, plant and equipment, gross	$ 218	$ 575
Less accumulated depreciation	(93)	(564)
Property and equipment, net	$ 125	$ 11