Property and Equipment

12 Months Ended

Dec. 31, 2013

7. Property and Equipment

Property and equipment consists of the following:

	December 31,

(In thousands)	2013			2012
Computer equipment	$	3,084		$	3,027
Software		5,391			5,073
Furniture and fixtures		3,890			3,829
Laboratory equipment		31,910			29,229
Leasehold improvements		17,769			17,416


		62,044			58,574
Less accumulated depreciation and amortization		(51,806	)		(49,420	)


Property and equipment, net	$	10,238		$	9,154

Depreciation expense was $2.7 million in 2013, $3.3 million in 2012, and $3.8 million in 2011. The change in accumulated depreciation is net of asset retirements. In 2012, we recognized a write-off of $0.2 million related to assets that could no longer be used in operations.

- 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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