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Property, Plant and Equipment

12 Months Ended

Dec. 31, 2013

7.

Property, Plant, and Equipment

Property, plant and equipment consisted of the following (in $000s):

	Useful lives in years from	December 31,
	date of acquisition	2012			2013

Leasehold improvements	5 to 15 years	$	867		$	922
Research and laboratory equipment	3 to 5 years		5,519			5,668
Office equipment and furniture	3 to 5 years		1,325			1,338
			7,711			7,928
Less: accumulated depreciation and amortization			(7,582	)		(7,653	)
		$	129		$	275

The depreciation and amortization of property, plant and equipment amounted to $0.2 million, $0.1 million and $0.1 million for the year ended December 31, 2011, 2012 and 2013, respectively.

Depreciation and amortization expense for the period from inception or August 13, 1996 through December 31, 2013 was $12.7 million. At December 31, 2012 and 2013 there were no assets held under capital lease arrangements.

- Definition

The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

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