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Note 13 - Income Taxes (Details Textual)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Effective Income Tax Rate Reconciliation, Percent, Total	(115.90%)	(35.60%)	(27.40%)	5.20%
Foreign Tax Authority [Member]
Income Tax Examination, Year under Examination			2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019

X

- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319

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X

- Definition

Tax year being audited in the income tax examination, in YYYY format.

+ References

No definition available.

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