XML 24 R9.htm IDEA: XBRL DOCUMENT v2.4.0.6
Patents and other intangible assets
6 Months Ended
Jun. 30, 2012
Patents and other intangible assets  
Patents and other intangible assets

 

 

4.                     Patents and other intangible assets

 

(US$ in thousands)

 

June 30,
2012

 

December 31,
2011

 

Cost

 

 

 

 

 

Patents and developed technologies

 

$

32,480

 

$

37,683

 

Trademarks — definite lived (subject to amortization)

 

548

 

545

 

 

 

33,028

 

38,228

 

Accumulated amortization

 

 

 

 

 

Patents and developed technologies

 

(25,339

)

(29,611

)

Trademarks — definite lived (subject to amortization)

 

(395

)

(381

)

 

 

 

 

 

 

Patents and other intangible assets, net

 

$

7,294

 

$

8,236

 

 

Amortization expense for intangible assets is estimated to be approximately $1 million for the remainder of 2012 and $2 million, $1.3 million, $1.3 million, $0.9 million and $0.8 million for the periods ending December 31, 2013, 2014, 2015, 2016 and 2017 and thereafter, respectively.