Balance Sheet Components (Property and Equipment, Net) (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Jun. 30, 2012
Property, Plant and Equipment [Line Items]
Property and equipment gross	$ 6,420	$ 5,499
Less: Accumulated depreciation and amortization	(1,378)	(1,028)
Property and Equipment, Net	5,042	4,471
Testing Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment gross	2,815	2,293
Computer And Other Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment gross	648	578
Tooling Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment gross	842	532
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment gross	608	595
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment gross	1,430	1,424
Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment gross	$ 77	$ 77

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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