Note 4 - Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

Foreign Currency Exchange Rates [Table Text Block]

	March 31, 2023		December 31, 2022
Balance sheet items, except for equity accounts		6.8717		6.9646

	Three Months Ended March 31,
	2023		2022
Items in the statements of operations and comprehensive loss		6.8476		6.3504

Financing Receivable, Current, Allowance for Credit Loss [Table Text Block]

	Three Months Ended March 31,
	2023		2022
	US$(’000)		US$(’000)
	(Unaudited)		(Unaudited)
Credit loss for accounts receivable:
Balance as of beginning of the period		3,760		2,236
Cumulative-effect adjustment upon adoption of ASU No. 2016-13, Financial Instruments-Credit losses (Topic 326)		36		-
Provision for credit loss during the period		223		-
Written off during the period		-		-
Exchange translation adjustments		51		9
Balance as of end of the period		4,070		2,245

	Three Months Ended March 31,
	2023		2022
	US$(’000)		US$(’000)
	(Unaudited)		(Unaudited)
Credit loss for other current assets:
Balance as of beginning of the period		617		-
Cumulative-effect adjustment upon adoption of ASU No. 2016-13, Financial Instruments-Credit losses (Topic 326)	155			-
Provision for credit loss during the period	78			-
Written off during the period		-		-
Exchange translation adjustments		-		-
Balance as of end of the period		850		-

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

			Fair value measurement at reporting date using
	As of March 31, 2023		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 14)		84		-		-		84

			Fair value measurement at reporting date using
	As of December 31, 2022		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 14)		185		-		-		185

Disaggregation of Revenue [Table Text Block]

	Three Months Ended March 31,
	2023		2022
	US$(’000)		US$(’000)
	(Unaudited)		(Unaudited)
Internet advertising and related services
--distribution of the right to use search engine marketing service		6,161		6,594
--online advertising placements		130		1,058
Blockchain-based SaaS services		25		-
Total revenues		6,316		7,652

	Three Months Ended March 31,
	2023		2022
	US$(’000)		US$(’000)
	(Unaudited)		(Unaudited)
Revenue recognized over time		6,316		7,652
Revenue recognized at a point in time		-		-
Total revenues		6,316		7,652

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

	Contract liabilities
	US$(’000)
Balance as of January 1, 2023		739
Exchange translation adjustment		8
Revenue recognized from beginning contract liability balance		(550	)
Advances received from customers related to unsatisfied performance obligations		523
Balance as of March 31, 2023 (Unaudited)		720

Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]

	Operating leases
	US$(’000)
	(Unaudited)
Nine months ending December 31, 2023		329
Year ending December 31,
-2024		317
-2025		333
-2026		349
-2027		367
-2028		385
-thereafter		65
Total undiscounted lease payments		2,145
Less: imputed interest		(335	)
Total operating lease liabilities as of March 31, 2023		1,810
Including:
Operating lease liabilities		310
Operating lease liabilities-Non current		1,500
		1,810

Lease, Cost [Table Text Block]

	Three Months Ended March 31,
	2023		2022
	US$(’000)		US$(’000)
	(Unaudited)		(Unaudited)
Long-term operating lease contracts		133		90
Short-term operating lease contracts		6		15
Total		139		105

	Three Months Ended March 31,
	2023			2022
	US$(’000)			US$(’000)
	(Unaudited)			(Unaudited)
Operating cash flows used for operating leases (US$’000)		122			86
Right-of-use assets obtained in exchange for new lease liabilities (US$’000)		-			-
Weighted-average remaining lease term (years)		5.62			6.90
Weighted-average discount rate		6	%		6	%