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Note 13 - Lease (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

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

			$
Year ending December 31, 2022			666
Year ending December 31, 2023			702
Year ending December 31, 2024			308
Year ending December 31, 2025			314
Year ending December 31, 2026			318
Total lease payments			2,308
Less: imputed interest			(302	)
Present value of lease liabilities			2,006

Lease, Cost [Table Text Block]

		Year ended December 31,
		2020				2021
			$				$
Operating cash flows used in operating lease			840				675

		As of December 31,
		2020				2021
Weighted average remaining lease term (years)			2.87				3.98
Weighted average discount rate			8.9	%			5.5	%

X

- Definition

Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980

+ Details

Name:	us-gaap_LeaseCostTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980

+ Details

Name:	us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration