Segment Information And Geographic Data (Long-Lived Assets By Operating Segment) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Long-lived assets	$ 46,817	$ 48,098
China [Member]
Segment Reporting Information [Line Items]
Long-lived assets	45,334	46,315
Rest of the World (including the US and Hong Kong) [Member]
Segment Reporting Information [Line Items]
Long-lived assets	$ 1,483	$ 1,783

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 Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599

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