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Note 10 - Financing Arrangements (Details Textual) $ in Millions			6 Months Ended
	Jun. 30, 2023 USD ($)	May 31, 2022 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Interest Rate Swap [Member]
Derivative Asset	$ 0.6		$ 0.6
Derivative Liability				$ 0.8
Credit Facility [Member]
Long-Term Line of Credit, Total		$ 5.0
Revolving Credit Facility [Member] | Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity		100.0
Letter of Credit [Member] | Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity		15.0
Swing Line Subfacility [Member] | Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity		20.0
Senior Term Loan Facility [Member]
Debt Instrument, Face Amount		$ 350.0
Senior Term Loan Facility [Member] | Credit Facility [Member] | Base Rate [Member] | Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate		0.75%
Senior Term Loan Facility [Member] | Credit Facility [Member] | Base Rate [Member] | Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate		1.75%
Senior Term Loan Facility [Member] | Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Debt Instrument, Basis Spread on Variable Rate			2.50%
Senior Term Loan Facility [Member] | Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate		1.75%
Senior Term Loan Facility [Member] | Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate		2.75%
Senior Term Loan Facility for Periods Ending June 30, 2023 Through Including June 30, 2024 [Member]
Debt Instrument, Covenant, Minimum Fixed Charge Coverage Ratio	1.00
Senior Term Loan Facility for Periods Ending September 30, 2024 Through Including December 31, 2024 [Member]
Debt Instrument, Covenant, Minimum Fixed Charge Coverage Ratio	1.10
Subordinated Credit Facility [Member]
Debt Instrument, Face Amount		$ 90.0
Subordinated Credit Facility [Member] | Minimum [Member]
Debt Instrument, Prepayment Fee, Percent		1.00%
Subordinated Credit Facility [Member] | Maximum [Member]
Debt Instrument, Prepayment Fee, Percent		2.00%
Subordinated Credit Facility [Member] | Base Rate [Member]
Debt Instrument, Basis Spread on Variable Rate		8.00%
Subordinated Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Debt Instrument, Basis Spread on Variable Rate		9.00%	9.10%

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