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Note 9 - Financing Arrangements (Details Textual)
$ in Millions
3 Months Ended
Jun. 30, 2023
May 31, 2022
USD ($)
Mar. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Interest Rate Swap [Member]        
Derivative Asset     $ 0.7  
Derivative Liability       $ 1.4
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     2.30%  
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      
Senior Term Loan Facility for Periods Ending September 30, 2024 Through Including December 31, 2024 [Member]        
Debt Instrument, Covenant, Minimum Fixed Charge Coverage Ratio 1.1      
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   9.10% 9.10%