Note 3 - Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

Foreign Currency Exchange Rates [Table Text Block]

	June 30, 2019		December 31, 2018
Balance sheet items, except for equity accounts		6.8747		6.8632

	Six Months Ended June 30,
	2019		2018
Items in the statements of operations and comprehensive loss, and statements of cash flows		6.7808		6.3711

	Three Months Ended June 30,
	2019		2018
Items in the statements of operations and comprehensive loss		6.8137		6.3789

Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

			Fair value measurement at reporting date using
	As of June 30, 2019		Quoted Prices in Active Markets for Identical  Assets/Liabilities (Level 1)	Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	US$(’000)		US$(’000)	US$(’000)		US$(’000)
	(Unaudited)
Warrant liabilities (Note 17)		135	-		-		135

			Fair value measurement at reporting date using
	As of December 31, 2018		Quoted Prices in Active Markets for Identical  Assets/Liabilities (Level 1)	Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	US$(’000)		US$(’000)	US$(’000)		US$(’000)
Warrant liabilities (Note 17)		606	-		-		606

Disaggregation of Revenue [Table Text Block]

	Six Months Ended June 30,				Three Months Ended June 30,
	2019		2018		2019		2018
	US$(’000)		US$(’000)		US$(’000)		US$(’000)
	(Unaudited)		(Unaudited)		(Unaudited)		(Unaudited)
Internet advertising and data service
--distribution of the right to use search engine marketing service		18,580		25,848		11,855		19,405
--online advertising placements		5,406		4,551		3,575		2,954
--sales of effective sales lead information		29		283		23		161
TV advertising service		-		91		-		-
Others		5		7		-		-
Total revenues	$	24,020	$	30,780	$	15,453	$	22,520

	Six Months Ended June 30,				Three Months Ended June 30,
	2019		2018		2019		2018
	US$(’000)		US$(’000)		US$(’000)		US$(’000)
	(Unaudited)		(Unaudited)		(Unaudited)		(Unaudited)
Revenue recognized over time		23,991		30,497		15,430		22,359
Revenue recognized at a point in time		29		283		23		161
Total revenues	$	24,020	$	30,780	$	15,453	$	22,520

Contract with Customer, Asset and Liability [Table Text Block]

	Contract liabilities
	US$(’000)
Balance as of January 1, 2019		1,061
Exchange translation adjustment		(2	)
Revenue recognized from beginning contract liability balances		(619	)
Advances received from customers related to unsatisfied performance obligations		2,381
Balance as of June 30, 2019 (Unaudited)		2,821
Including:
--advance from customers		2,768
--advance from a customer, related		53
Total contract liabilities as of June 30, 2019 (Unaudited)		2,821

Lease, Cost [Table Text Block]

Operating cash flows used for operating leases (in thousands of U.S. dollars)	93
Right-of-use assets obtained in exchange for new lease liabilities (in thousands of U.S. dollars)	10
Weighted-average remaining lease term (years)	1.71
Weighted-average discount rate	6	%