Property, Plant and Equipment

12 Months Ended

Dec. 31, 2012

8 Property, Plant and Equipment

Property, plant and equipment consisted of the following:

	Useful lives in years from	December 31,
	date of acquisition	2011		2012
		$000		$000
Leasehold improvements	5 to 15 yrs	844		867
Research and laboratory equipment	3 to 5 yrs	6,251		5,519
Office equipment and furniture	3 to 5 yrs	1,273		1,325
		8,368		7,711
Less: accumulated depreciation and amortization		(8,201	)	(7,582	)
		167		129

The depreciation and amortization of property, plant and equipment amounted to $0.5 million, $0.2 million and approximately $60,000 for the years ended December 31, 2010, 2011 and 2012, respectively.

Depreciation and amortization expense for the period from inception or August 13, 1996 through December 31, 2011 was $12.6 million. At December 31, 2011 and 2012 there were no assets held under capital lease arrangements.

- 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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