Note 4 - Property and Equipment (Detail) - Property and Equipment (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Property and Equipment	$ 9,597	$ 9,488
Less: accumulated depreciation	(7,699)	(7,383)
Property and equipment, net	1,898	2,105
Equipment [Member]
Property and Equipment	5,837	5,831
Tooling [Member]
Property and Equipment	2,470	2,440
Furniture and Fixtures [Member]
Property and Equipment	132	129
Computer Software [Member]
Property and Equipment	432	431
Leasehold Improvements [Member]
Property and Equipment	630	630
Construction in Progress [Member]
Property and Equipment	$ 96	$ 27

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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