Business Segment and Foreign Operations (Details 1) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Schedule of Long-lived asset
Long-lived tangible assets	$ 82,263	$ 85,799
United States [Member]
Schedule of Long-lived asset
Long-lived tangible assets	4,011	3,530
People's Republic of China [Member]
Schedule of Long-lived asset
Long-lived tangible assets	74,655	78,466
All other countries [Member]
Schedule of Long-lived asset
Long-lived tangible assets	$ 3,597	$ 3,803

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 131

-Paragraph 38

-Subparagraph b(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Name:	us-gaap_NoncurrentAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant