Note 17 - Foreign Exchange (Details Textual) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
General and Administrative Expense [Member]
Realized Gain (Loss), Foreign Currency Transaction, before Tax	$ (0.1)	$ (0.2)	$ (0.4)

Amount, before tax, of realized gain (loss) from foreign currency transaction.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 946
-SubTopic 830
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 946
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 830
-SubTopic 20
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-SubTopic 20
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