Note 3 - Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

Foreign Currency Exchange Rates [Table Text Block]

	March 31, 2021		December 31, 2020
Balance sheet items, except for equity accounts		6.5713		6.5249

	Three Months Ended March 31,
	2021		2020
Items in the statements of operations and comprehensive income/(loss)		6.4844		6.9790

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

			Fair value measurement at reporting date using
	As of March 31, 2021		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 16)		10,919	-		-		10,919

			Fair value measurement at reporting date using
	As of December 31, 2020		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 16)		1,505	-		-		1,505

Disaggregation of Revenue [Table Text Block]

	Three Months Ended March 31,
	2021		2020
	US$('000)		US$('000)
	(Unaudited)		(Unaudited)
Internet advertising and related services
--distribution of the right to use search engine marketing service		6,865		1,988
--online advertising placements		1,402		948
--data and technical services		-		300
Ecommerce O2O advertising and marketing services		129		503
Technical solution services		-		645
Total revenues		8,396		4,384

	Three Months Ended March 31,
	2021		2020
	US$('000)		US$('000)
	(Unaudited)		(Unaudited)
Revenue recognized over time		8,396		3,739
Revenue recognized at a point in time		-		645
Total revenues		8,396		4,384

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

	Contract liabilities
	US$('000)
Balance as of January 1, 2021		1,436
Exchange translation adjustment		(10	)
Revenue recognized from beginning contract liability balance		(1,092	)
Advances received from customers related to unsatisfied performance obligations		1,258
Balance as of March 31, 2021 (Unaudited)		1,592

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

	Operating leases
	US$('000)
	(Unaudited)
Nine months ending December 31, 2021		192
Year ending December 31,
-2022		313
-2023		331
-2024		341
-2025		361
-2026		383
-thereafter		908
Total undiscounted lease payments		2,829
Less: imputed interest		(609	)
Total operating lease liabilities as of March 31, 2021		2,220
Including:
Operating lease liabilities		267
Operating lease liabilities-Non current		1,953
		2,220

Lease, Cost [Table Text Block]

	Three Months Ended March 31,
	2021		2020
	US$('000)		US$('000)
	(Unaudited)		(Unaudited)
Long-term operating lease contracts		37		3
Short-term operating lease contracts		15		44
Total		52		47

	Three Month Ended March 31, 2021
	(Unaudited)
Operating cash flows used for operating leases (US$'000)		14
Right-of-use assets obtained in exchange for new lease liabilities (US$'000)		2,249
Weighted-average remaining lease term (years)		7.88
Weighted-average discount rate		6	%