BALANCE SHEET COMPONENTS - Property and Equipment, Net (Details) - USD ($)
$ in Thousands |
12 Months Ended |
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2013 |
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment gross |
$ 25,343
|
$ 12,369
|
|
| Less: Accumulated depreciation |
(9,741)
|
(5,109)
|
|
| Property and equipment, net |
15,602
|
7,260
|
|
| Depreciation expense |
4,700
|
2,600
|
$ 1,800
|
| Testing equipment |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment gross |
4,816
|
3,785
|
|
| Computer and other equipment |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment gross |
4,458
|
1,019
|
|
| Tooling equipment |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment gross |
4,073
|
2,898
|
|
| Furniture and fixtures |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment gross |
1,239
|
973
|
|
| Leasehold improvements |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment gross |
4,789
|
3,173
|
|
| Software |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment gross |
3,268
|
521
|
|
| Software in development |
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
|
| Property and equipment gross |
$ 2,700
|
$ 0
|
|