XML 28 R9.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Patents and other intangible assets | 3 Months Ended
--- | ---
Mar. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract] |
Patents and other intangible assets | 4. Patents and other intangible assets
(U.S. Dollars, in thousands) |  | March 31, 2014 |  |  | December 31, 2013 |
Cost |  |  |  |  |  |  |  |
Patents |  | $ | 34,815 |  |  | $ | 34,820 |
Trademarks — definite lived |  |  | 645 |  |  |  | 620 |
Licenses and other |  |  | 7,748 |  |  |  | 7,748 |
|  |  | 43,208 |  |  |  | 43,188 |
Accumulated amortization |  |  |  |  |  |  |  |
Patents |  |  | (32,170 | ) |  |  | (31,739 | )
Trademarks — definite lived |  |  | (484 | ) |  |  | (454 | )
Licenses and other |  |  | (2,036 | ) |  |  | (1,949 | )
|  |  | (34,690 | ) |  |  | (34,142 | )
Patents and other intangible assets, net |  | $ | 8,518 |  |  | $ | 9,046 |

X
- Details
Name: | us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
Name: | us-gaap_IntangibleAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration