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Goodwill and Intangible Assets
6 Months Ended
Jun. 30, 2011
Goodwill and Intangible Assets  
Goodwill and Intangible Assets

13. Goodwill and Intangible Assets.   The changes in the carrying amount of goodwill for the six months ended June 30, 2011, are as follows (in thousands):

 

 

 

2011

 

Goodwill balance at January 1

 

$

58,675

 

Changes as the result of acquisitions

 

(16

)

Goodwill balance at June 30

 

$

58,659

 

 

Intangible assets at June 30, 2011 and December 31, 2010 consisted of the following (in thousands):

 

 

 

June 30, 2011

 

December 31, 2010

 

 

 

Gross

 

 

 

Net

 

Gross

 

 

 

Net

 

 

 

Carrying

 

Accumulated

 

Carrying

 

Carrying

 

Accumulated

 

Carrying

 

 

 

Amount

 

Amortization

 

Amount

 

Amount

 

Amortization

 

Amount

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Patents

 

$

5,769

 

$

(1,568

)

$

4,201

 

$

4,631

 

$

(1,445

)

$

3,186

 

Distribution agreement

 

2,426

 

(770

)

1,656

 

2,426

 

(641

)

1,785

 

License agreements

 

1,983

 

(393

)

1,590

 

1,833

 

(352

)

1,481

 

Trademark

 

5,792

 

(829

)

4,963

 

5,761

 

(636

)

5,125

 

Developed technology

 

42,393

 

(3,505

)

38,888

 

36,574

 

(2,301

)

34,273

 

In-process technology

 

400

 

 

 

400

 

400

 

 

 

400

 

Covenant not to compete

 

315

 

(88

)

227

 

315

 

(67

)

248

 

Customer lists

 

14,046

 

(4,636

)

9,410

 

13,973

 

(3,287

)

10,686

 

Royalty agreements

 

267

 

(267

)

 

 

267

 

(267

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total

 

$

73,391

 

$

(12,056

)

$

61,335

 

$

66,180

 

$

(8,996

)

$

57,184

 

 

The aggregate amortization expense was approximately $1.5 million and $3.1 million for the three and six-month periods ended June 30, 2011, respectively, and approximately $669,000 and $1.3 million for the three and six-month periods ended June 30, 2010, respectively.

 

Estimated amortization expense for the intangible assets for the next five years consisted of the following (in thousands):

 

Remaining 2011

 

$

3,688

 

2012

 

5,297

 

2013

 

5,091

 

2014

 

4,766

 

2015

 

4,503