Note 3 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Foreign Currency Exchange Rates [Table Text Block]

	As of December 31,
	2021		2020
Balance sheet items, except for equity accounts		6.3757		6.5249
	Year Ended December 31,
	2021		2020
Items in the statements of operations and comprehensive loss		6.4515		6.8976

Property, Plant and Equipment, Useful Life [Table Text Block]

Leasehold improvements (years)	3
Vehicles (years)	5
Office equipment (years)	3	-	5
Electronic devices (years)	5

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

			Fair value measurement at reporting date using
	As of December 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)
Warrant liabilities		2,039		-		-		2,039

			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		1,505		-		-		1,505

Disaggregation of Revenue [Table Text Block]

	Year Ended December 31,
	2021		2020
	US$(’000)		US$(’000)
Internet advertising and related service
--distribution of the right to use search engine marketing service		39,224		25,997
--online advertising placements		7,442		8,421
--data and technical services		-		1,200
Ecommerce O2O advertising and marketing services		662		1,545
Technical solution services		-		1,245
Total revenues	$	47,328	$	38,408

	Year Ended December 31,
	2021		2020
	US$(’000)		US$(’000)
Revenue recognized over time		47,328		37,163
Revenue recognized at a point in time		-		1,245
Total revenues	$	47,328	$	38,408

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

	Contract liabilities
	US$(’000)
Balance as of January 1, 2020		2,006
Exchange translation adjustment		139
Revenue recognized from beginning contract liability balance		(2,032	)
Advances received from customers related to unsatisfied performance obligations		1,323
Balance as of December 31, 2020		1,436
Exchange translation adjustment		34
Revenue recognized from beginning contract liability balance		(1,390	)
Advances received from customers related to unsatisfied performance obligations		1,165
Balance as of December 31, 2021		1,245

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

	Operating leases
	US$(’000)
Year ending December 31,
-2022		320
-2023		335
-2024		342
-2025		359
-2026		377
-thereafter		881
Total undiscounted lease payments		2,614
Less: imputed interest		(505	)
Operating lease liabilities as of December 31, 2021	$	2,109
Including:
Operating lease liabilities		202
Operating lease liabilities-Non current		1,907
	$	2,109

Lease, Cost [Table Text Block]

	Year Ended December 31,
	2021		2020
	US$(’000)		US$(’000)
Long-term operating lease contracts		302		14
Short-term operating lease contracts		60		138
Total		362		152

	2021			2020
Operating cash flows used for operating leases (US$’000)		210			9
Right-of-use assets obtained in exchange for new lease liabilities (US$’000)		2,186			47
Weighted-average remaining lease term (years)		7.12			2.75
Weighted-average discount rate		6	%		6	%