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Note 13 - Income Tax - Open Tax Years by Major Tax Jurisdiction (Details)	12 Months Ended
	Dec. 31, 2022
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member]
Open tax year	2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
State and Local Jurisdiction [Member]
Open tax year	2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
Foreign Tax Authority [Member] | Ministry of Finance, India [Member]
Open tax year	2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
Foreign Tax Authority [Member] | Mauritius Revenue Authority [Member]
Open tax year	2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022

X

- Definition

Tax year that remains open to examination under enacted tax laws, in YYYY format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (e)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32718-109319

+ Details

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X

- Details

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X

- Details

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X

- Details

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X

- Details

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X

- Details

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