Intangible Assets

6 Months Ended

Jun. 30, 2011

Intangible Assets

Intangible Assets

Note 6—INTANGIBLE ASSETS

Intangible assets are summarized as follows (in thousands):

	June 30, 2011				December 31, 2010				Estimated Useful Life
Core Technology
Gross amount		$	2,900			$	2,900		9 years
Accumulated amortization			(1,369	)			(1,208	)
Net			1,531				1,692
Developed Technology
Gross amount			11,700				11,700		7 years
Accumulated amortization			(7,104	)			(6,268	)
Net			4,596				5,432
Trademarks and trade names
Gross amount			500				500		7 years
Accumulated amortization			(290	)			(253	)
Net			210				247
DepoDur Rights
Gross amount			2,058				2,058		Remaining patent life
Accumulated amortization			(615	)			(517	)	ending November 2018
Net			1,443				1,541
Intangible assets, net		$	7,780			$	8,912

Amortization expense for intangibles was $0.6 million for each of the three months ended June 30, 2011 and 2010, respectively. Amortization expense for intangibles was $1.1 million for each of the six months ended June 30, 2011 and 2010. Amortization expenses associated with the Company's commercial products and developed technology are included in cost of revenues. Amortization expenses associated with the Company's products in development are included in research and development expenses.

The approximate amortization expense for intangibles subject to amortization is as follows (in thousands):

	Core Technology			Developed Technology			Trademarks and Tradenames			DepoDur Rights			Total
2011 (remaining six months)		$	162		$	835		$	38		$	98		$	1,133
2012			322			1,671			76			196			2,265
2013			322			1,671			76			196			2,265
2014			322			419			20			196			957
2015			322			—			—			196			518
Thereafter			81			—			—			561			642
Total		$	1,531		$	4,596		$	210		$	1,443		$	7,780