Property, Plant & Equipment (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Property, Plant & Equipment:
Property, plant and equipment	$ 99,747	$ 93,236
Accumulated depreciation	(48,189)	(43,892)
Property, plant and equipment — net	51,558	49,344
Commitments for capital expenditures in progress recorded on balance sheet	662	4,356
Capitalized interest expense	174	111
Accounts payable
Property, Plant & Equipment:
Commitments for capital expenditures in progress recorded on balance sheet	241	1,086
Land and land improvements
Property, Plant & Equipment:
Property, plant and equipment	5,098	5,098
Buildings
Property, Plant & Equipment:
Property, plant and equipment	36,556	36,535
Machinery and equipment
Property, Plant & Equipment:
Property, plant and equipment	56,831	44,683
Tools, dies and patterns
Property, Plant & Equipment:
Property, plant and equipment	808	808
Additions in progress
Property, Plant & Equipment:
Property, plant and equipment	$ 454	$ 6,112

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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