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Note 4 - Property, Plant and Equipment (Detail) - Major classes of property, plant and equipment (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Land	$ 123	$ 123
Buildings and leasehold improvements	7,274	7,000
Machinery and equipment	46,044	44,770
Furniture and fixtures	1,904	1,894
Computer hardware and software	4,180	3,815
Construction in progress	889	641
	60,414	58,243
Less: Accumulated depreciation	48,039	45,655
	$ 12,375	$ 12,588

X

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 14

-Article 5



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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

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X

- Definition

Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

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X

- Definition

Gross amount, at the balance sheet date, of long-lived assets under construction that include construction costs to date on capital projects that have not been completed and assets being constructed that are not ready to be placed into service.

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X

- Definition

Gross amount, at the balance sheet date, of long-lived, depreciable assets commonly used in offices and stores. Examples include desks, chairs, and store fixtures.

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X

- Definition

Carrying amount as of the balance sheet date of real estate held for productive use. This excludes land held for sale.

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-Publisher FASB

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X

- Definition

Gross amount, as of the balance sheet date, of long-lived, depreciable assets used in the production process to produce goods and services.

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X

- Definition

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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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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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.

+ References

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-Publisher SEC

-Name Regulation S-X (SX)

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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- Definition

This element represents capitalized assets classified as property, plant and equipment not otherwise defined in the taxonomy.

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