PROPERTY AND EQUIPMENT, NET - Summary of Property And Equipment at Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Property, Plant and Equipment [Line Items]
Property and equipment, cost	$ 44,584	$ 47,890
Accumulated depreciation	(36,712)	(38,300)
Net	7,872	9,590
Computer equipment and software
Property, Plant and Equipment [Line Items]
Property and equipment, cost	6,555	6,745
Accumulated depreciation	(6,183)	(5,840)
Net	372	905
Internal-use software
Property, Plant and Equipment [Line Items]
Property and equipment, cost	3,744	3,126
Accumulated depreciation	(1,344)	(716)
Net	$ 2,400	$ 2,410
Property and equipment used for rental program
Property, Plant and Equipment [Line Items]
Useful life	5 years	5 years
Property and equipment, cost	$ 32,445	$ 36,190
Accumulated depreciation	(27,745)	(30,473)
Net	4,700	5,717
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, cost	1,554	1,543
Accumulated depreciation	(1,252)	(1,116)
Net	302	427
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, cost	286	286
Accumulated depreciation	(188)	(155)
Net	$ 98	$ 131
Minimum | Computer equipment and software
Property, Plant and Equipment [Line Items]
Useful life	3 years	3 years
Minimum | Internal-use software
Property, Plant and Equipment [Line Items]
Useful life	3 years	3 years
Minimum | Furniture and equipment
Property, Plant and Equipment [Line Items]
Useful life	3 years	3 years
Maximum | Computer equipment and software
Property, Plant and Equipment [Line Items]
Useful life	7 years	7 years
Maximum | Internal-use software
Property, Plant and Equipment [Line Items]
Useful life	5 years	5 years
Maximum | Furniture and equipment
Property, Plant and Equipment [Line Items]
Useful life	7 years	7 years