Note 1 - Organization and Summary of Significant Accounting Policies (Detail) - Property and Equipment - Components (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Machinery and equipment	$ 4,006	$ 3,682
Furniture and fixtures	155	155
Leasehold improvements	277	277
Building	665	590
Subtotal	5,103	4,704
Accumulated depreciation	(3,959)	(3,482)
Property and equipment, net	$ 1,144	$ 1,222

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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