Note 6 - Financial Instruments and Fair Value Measurements (Details Textual) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2023
Long-Term Debt, Fair Value		$ 541.8
Interest Rate Cap [Member] \| Not Designated as Hedging Instrument [Member]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	$ (0.6)

Amount after tax of reclassification adjustments of other comprehensive income (loss).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 220
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-Section 45
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-URI https://asc.fasb.org//1943274/2147482790/220-10-45-14A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
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-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482765/220-10-50-5

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
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-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481694/830-30-45-17

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
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-Paragraph 20
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481694/830-30-45-20

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 220
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-Name Accounting Standards Codification
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Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 55
-Paragraph 15
-SubTopic 10
-Topic 220
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482739/220-10-55-15

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration