Note 10 - Property and equipment, net (Details) - Property and equipment, net (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Note 10 - Property and equipment, net (Details) - Property and equipment, net [Line Items]
Property and equipment, gross	$ 3,773	$ 3,611
Less: accumulated depreciation	(2,493)	(1,975)
Property and equipment, net	1,280	1,636
Vehicles [Member]
Note 10 - Property and equipment, net (Details) - Property and equipment, net [Line Items]
Property and equipment, gross	992	925
Office Equipment [Member]
Note 10 - Property and equipment, net (Details) - Property and equipment, net [Line Items]
Property and equipment, gross	1,544	1,481
Electronic Devices [Member]
Note 10 - Property and equipment, net (Details) - Property and equipment, net [Line Items]
Property and equipment, gross	$ 1,237	$ 1,205