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22. Segment information (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenue	$ 18,302	$ 18,822	$ 18,602
Geographical analysis of long-lived assets	773	811
The PRC
Revenue	9,327	10,950	12,392
Geographical analysis of long-lived assets	272	279
Hong Kong
Revenue	8,726	6,177	5,919
Geographical analysis of long-lived assets	501	532
Others
Revenue	$ 249	$ 1,695	$ 291

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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