Property, plant and equipment

12 Months Ended

Dec. 31, 2012

Property Plant And Equipment [Abstract]

4.	Property, plant and equipment


	December 31,
(U.S. Dollars, in thousands)	2012			2011
	(Restated)			(Restated)
Cost
Buildings	$	3,911		$	3,829
Plant, equipment and instrumentation		120,982			104,782
Furniture and fixtures		5,567			5,697


		130,460			114,308
Accumulated depreciation		(76,625	)		(68,171	)


	$	53,835		$	46,137

Depreciation expense for the years ended December 31, 2012, 2011 and 2010 was $15.8 million, $14.3 million and $13.0 million, respectively.

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

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