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Note 14 - Taxation (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Operating Loss Carryforwards, Total | $ 30,400 |  | $ 30,400 |  | $ 23,300
Operating Loss Carryforwards, Taxable Income Deduction Limitations | 80.00% |  | 80.00% |  |
Deferred Tax Assets, Valuation Allowance, Total | $ 11,855 |  | $ 11,855 |  | 10,245
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount | 1,650 | $ 210 | 1,960 | $ 760 |
PRC Subsidiary And VIE's [Member] |  |  |  |  |
Operating Loss Carryforwards, Total | $ 24,300 |  | $ 24,300 |  | $ 22,500

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319 + Details
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