Note 11 - Property and equipment, net (Details) - Property and equipment, net (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Note 11 - Property and equipment, net (Details) - Property and equipment, net [Line Items]
Property and equipment, gross	$ 3,746	$ 3,611
Less: accumulated depreciation	(2,329)	(1,975)
Property and equipment, net	1,417	1,636
Vehicles [Member]
Note 11 - Property and equipment, net (Details) - Property and equipment, net [Line Items]
Property and equipment, gross	986	925
Office Equipment [Member]
Note 11 - Property and equipment, net (Details) - Property and equipment, net [Line Items]
Property and equipment, gross	1,530	1,481
Electronic Devices [Member]
Note 11 - Property and equipment, net (Details) - Property and equipment, net [Line Items]
Property and equipment, gross	$ 1,230	$ 1,205